diff --git a/packages/core/src/aisdk.ts b/packages/core/src/aisdk.ts
index 3aaf5484ee..9eb47006f0 100644
--- a/packages/core/src/aisdk.ts
+++ b/packages/core/src/aisdk.ts
@@ -198,23 +198,23 @@ export const locationLayer = Layer.effect(
         const key = `${model.providerID}/${model.id}/${model.modelID ?? model.id}/${JSON.stringify(model.settings)}`
         const existing = languages.get(key)
         if (existing) return existing
-        if (!model.aisdk)
+        if (!ProviderV2.isAISDK(model.package))
           return yield* new InitError({
             providerID: model.providerID,
             cause: new Error(`Unsupported package ${model.package}`),
           })
 
-        const options = prepareOptions(model, model.package ?? "")
+        const packageName = ProviderV2.packageName(model.package) ?? ""
+        const options = prepareOptions(model, packageName)
         const sdkKey = JSON.stringify({
           providerID: model.providerID,
-          package: model.package,
+          package: packageName,
           settings: model.settings,
           options,
         })
         const sdk =
           sdks.get(sdkKey) ??
-          (yield* service.runSDK({ model, package: model.package ?? "", options }).pipe(initError(model.providerID)))
-            .sdk
+          (yield* service.runSDK({ model, package: packageName, options }).pipe(initError(model.providerID))).sdk
         if (!sdk)
           return yield* new InitError({
             providerID: model.providerID,
diff --git a/packages/core/src/catalog.ts b/packages/core/src/catalog.ts
index 51b33cea74..96610b71cc 100644
--- a/packages/core/src/catalog.ts
+++ b/packages/core/src/catalog.ts
@@ -7,6 +7,7 @@ import { EventV2 } from "./event"
 import { Policy } from "./policy"
 import { State } from "./state"
 import { Integration } from "./integration"
+import { ProviderOverlay } from "./provider-overlay"
 
 export type ProviderRecord = {
   provider: ProviderV2.MutableInfo
@@ -79,10 +80,9 @@ export const layer = Layer.effect(
       return ModelV2.Info.make({
         ...model,
         package: model.package ?? provider.package,
-        aisdk: model.package === undefined ? (model.aisdk ?? provider.aisdk) : model.aisdk,
-        settings: merge(provider.settings, model.settings),
-        headers: headers(provider.headers, model.headers),
-        body: merge(provider.body, model.body),
+        settings: ProviderOverlay.merge(provider.settings, model.settings),
+        headers: ProviderOverlay.headers(provider.headers, model.headers),
+        body: ProviderOverlay.merge(provider.body, model.body),
       })
     }
 
@@ -270,43 +270,6 @@ export const layer = Layer.effect(
 
 const SMALL_MODEL_RE = /\b(nano|flash|lite|mini|haiku|small|fast)\b/
 
-function merge(
-  base: Readonly<Record<string, unknown>> | undefined,
-  overlay: Readonly<Record<string, unknown>> | undefined,
-): Record<string, unknown> | undefined {
-  if (base === undefined) return overlay && { ...overlay }
-  if (overlay === undefined) return { ...base }
-  return Object.fromEntries(
-    new Set([...Object.keys(base), ...Object.keys(overlay)]).values().map((key) => {
-      const left = base[key]
-      const right = overlay[key]
-      if (right === undefined) return [key, left]
-      if (plain(left) && plain(right)) return [key, merge(left, right)]
-      return [key, right]
-    }),
-  )
-}
-
-function plain(input: unknown): input is Readonly<Record<string, unknown>> {
-  if (typeof input !== "object" || input === null || Array.isArray(input)) return false
-  const prototype = Object.getPrototypeOf(input)
-  return prototype === Object.prototype || prototype === null
-}
-
-function headers(
-  base: Readonly<Record<string, string>> | undefined,
-  overlay: Readonly<Record<string, string>> | undefined,
-) {
-  return Object.fromEntries(
-    [...Object.entries(base ?? {}), ...Object.entries(overlay ?? {})]
-      .reduce((result, entry) => {
-        result.set(entry[0].toLowerCase(), entry)
-        return result
-      }, new Map<string, [string, string]>())
-      .values(),
-  )
-}
-
 export const locationLayer = layer.pipe(
   Layer.provideMerge(Integration.locationLayer),
   Layer.provideMerge(Policy.locationLayer),
diff --git a/packages/core/src/config/plugin/provider.ts b/packages/core/src/config/plugin/provider.ts
index 3129240639..4dd4e064f2 100644
--- a/packages/core/src/config/plugin/provider.ts
+++ b/packages/core/src/config/plugin/provider.ts
@@ -4,6 +4,7 @@ import { define } from "../../plugin/internal"
 import { Effect } from "effect"
 import { Config } from "../../config"
 import { ModelV2 } from "../../model"
+import { ProviderOverlay } from "../../provider-overlay"
 import { ProviderV2 } from "../../provider"
 
 export const Plugin = define({
@@ -53,10 +54,10 @@ export const Plugin = define({
             catalog.provider.update(providerID, (provider) => {
               if (item.name !== undefined) provider.name = item.name
               if (item.package !== undefined) provider.package = item.package
-              if (item.aisdk !== undefined) provider.aisdk = item.aisdk
-              if (item.settings !== undefined) provider.settings = { ...provider.settings, ...item.settings }
-              if (item.headers !== undefined) provider.headers = { ...provider.headers, ...item.headers }
-              if (item.body !== undefined) provider.body = { ...provider.body, ...item.body }
+              if (item.settings !== undefined)
+                provider.settings = ProviderOverlay.merge(provider.settings, item.settings)
+              if (item.headers !== undefined) provider.headers = ProviderOverlay.headers(provider.headers, item.headers)
+              if (item.body !== undefined) provider.body = ProviderOverlay.merge(provider.body, item.body)
             })
             for (const [id, config] of Object.entries(item.models ?? {})) {
               catalog.model.update(providerID, id, (model) => {
@@ -64,10 +65,10 @@ export const Plugin = define({
                 if (config.name !== undefined) model.name = config.name
                 if (config.modelID !== undefined) model.modelID = config.modelID
                 if (config.package !== undefined) model.package = config.package
-                if (config.aisdk !== undefined) model.aisdk = config.aisdk
-                if (config.settings !== undefined) model.settings = { ...model.settings, ...config.settings }
-                if (config.headers !== undefined) model.headers = { ...model.headers, ...config.headers }
-                if (config.body !== undefined) model.body = { ...model.body, ...config.body }
+                if (config.settings !== undefined)
+                  model.settings = ProviderOverlay.merge(model.settings, config.settings)
+                if (config.headers !== undefined) model.headers = ProviderOverlay.headers(model.headers, config.headers)
+                if (config.body !== undefined) model.body = ProviderOverlay.merge(model.body, config.body)
                 if (config.capabilities !== undefined) {
                   model.capabilities = {
                     tools: config.capabilities.tools,
@@ -86,9 +87,10 @@ export const Plugin = define({
                       model.variants.push(existing)
                     }
                     if (variant.settings !== undefined)
-                      existing.settings = { ...existing.settings, ...variant.settings }
-                    if (variant.headers !== undefined) existing.headers = { ...existing.headers, ...variant.headers }
-                    if (variant.body !== undefined) existing.body = { ...existing.body, ...variant.body }
+                      existing.settings = ProviderOverlay.merge(existing.settings, variant.settings)
+                    if (variant.headers !== undefined)
+                      existing.headers = ProviderOverlay.headers(existing.headers, variant.headers)
+                    if (variant.body !== undefined) existing.body = ProviderOverlay.merge(existing.body, variant.body)
                   }
                 }
                 if (config.cost !== undefined) {
diff --git a/packages/core/src/config/provider.ts b/packages/core/src/config/provider.ts
index 153ab7fcef..990207d9cb 100644
--- a/packages/core/src/config/provider.ts
+++ b/packages/core/src/config/provider.ts
@@ -40,7 +40,6 @@ class Model extends Schema.Class<Model>("ConfigV2.Model")({
   family: ModelV2.Family.pipe(Schema.optional),
   name: Schema.String.pipe(Schema.optional),
   package: Schema.String.pipe(Schema.optional),
-  aisdk: Schema.Literal(true).pipe(Schema.optional),
   ...Overlays,
   capabilities: ModelV2.Capabilities.pipe(Schema.optional),
   variants: Schema.Struct({
@@ -56,7 +55,6 @@ export class Info extends Schema.Class<Info>("ConfigV2.Provider")({
   name: Schema.String.pipe(Schema.optional),
   env: Schema.String.pipe(Schema.Array, Schema.optional),
   package: Schema.String.pipe(Schema.optional),
-  aisdk: Schema.Literal(true).pipe(Schema.optional),
   ...Overlays,
   models: Schema.Record(Schema.String, Model).pipe(Schema.optional),
 }) {}
diff --git a/packages/core/src/model.ts b/packages/core/src/model.ts
index 2d7c597a44..3f264ecd9f 100644
--- a/packages/core/src/model.ts
+++ b/packages/core/src/model.ts
@@ -1,6 +1,6 @@
-import { Types } from "effect"
 import { Model } from "@opencode-ai/schema/model"
 import { ProviderV2 } from "./provider"
+import type { DeepMutable } from "./schema"
 
 export const ID = Model.ID
 export type ID = typeof ID.Type
@@ -23,7 +23,7 @@ export type Ref = typeof Ref.Type
 export const Info = Model.Info
 export type Info = Model.Info
 
-export type MutableInfo = Types.DeepMutable<Info>
+export type MutableInfo = DeepMutable<Info>
 
 export function parse(input: string): { providerID: ProviderV2.ID; modelID: ID } {
   const [providerID, ...modelID] = input.split("/")
diff --git a/packages/core/src/plugin/models-dev.ts b/packages/core/src/plugin/models-dev.ts
index ba6e4a869a..ae6a828487 100644
--- a/packages/core/src/plugin/models-dev.ts
+++ b/packages/core/src/plugin/models-dev.ts
@@ -75,8 +75,7 @@ export const ModelsDevPlugin = define({
           const providerID = ProviderV2.ID.make(item.id)
           catalog.provider.update(providerID, (provider) => {
             provider.name = item.name
-            provider.package = item.npm ?? ""
-            provider.aisdk = item.npm ? true : undefined
+            provider.package = item.npm ? ProviderV2.aisdk(item.npm) : ""
             provider.settings = item.api ? { ...provider.settings, baseURL: item.api } : provider.settings
           })
 
@@ -85,8 +84,7 @@ export const ModelsDevPlugin = define({
             catalog.model.update(providerID, modelID, (draft) => {
               draft.name = model.name
               draft.family = model.family ? ModelV2.Family.make(model.family) : undefined
-              draft.package = model.provider?.npm
-              draft.aisdk = model.provider?.npm ? true : undefined
+              draft.package = model.provider?.npm ? ProviderV2.aisdk(model.provider.npm) : undefined
               draft.settings = model.provider?.api ? { ...draft.settings, baseURL: model.provider.api } : draft.settings
               draft.capabilities = {
                 tools: model.tool_call,
diff --git a/packages/core/src/plugin/provider/amazon-bedrock.ts b/packages/core/src/plugin/provider/amazon-bedrock.ts
index 00dc73edb0..f538cc1601 100644
--- a/packages/core/src/plugin/provider/amazon-bedrock.ts
+++ b/packages/core/src/plugin/provider/amazon-bedrock.ts
@@ -65,8 +65,8 @@ export const AmazonBedrockPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/amazon-bedrock") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/amazon-bedrock") continue
           evt.provider.update(item.provider.id, (provider) => {
             if (typeof provider.settings?.endpoint !== "string") return
             // The AI SDK expects a base URL, but users configure Bedrock private/VPC
@@ -113,7 +113,10 @@ export const AmazonBedrockPlugin = define({
     yield* ctx.aisdk.language(
       Effect.fn(function* (evt) {
         if (evt.model.providerID !== ProviderV2.ID.amazonBedrock) return
-        if (evt.model.aisdk && evt.model.package === "@ai-sdk/amazon-bedrock/mantle") {
+        if (
+          ProviderV2.isAISDK(evt.model.package) &&
+          ProviderV2.packageName(evt.model.package) === "@ai-sdk/amazon-bedrock/mantle"
+        ) {
           evt.language = selectMantleModel(evt.sdk, evt.model.modelID ?? evt.model.id)
           return
         }
diff --git a/packages/core/src/plugin/provider/anthropic.ts b/packages/core/src/plugin/provider/anthropic.ts
index c13fbbfdad..13b4d0c78b 100644
--- a/packages/core/src/plugin/provider/anthropic.ts
+++ b/packages/core/src/plugin/provider/anthropic.ts
@@ -1,5 +1,6 @@
 import { Effect } from "effect"
 import { define } from "../internal"
+import { ProviderV2 } from "../../provider"
 
 export const AnthropicPlugin = define({
   id: "anthropic",
@@ -7,8 +8,8 @@ export const AnthropicPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/anthropic") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/anthropic") continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.headers = {
               ...provider.headers,
diff --git a/packages/core/src/plugin/provider/azure.ts b/packages/core/src/plugin/provider/azure.ts
index b1e5754606..a97713d59d 100644
--- a/packages/core/src/plugin/provider/azure.ts
+++ b/packages/core/src/plugin/provider/azure.ts
@@ -16,8 +16,8 @@ export const AzurePlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/azure") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/azure") continue
           const configured = item.provider.settings?.resourceName
           const resourceName =
             typeof configured === "string" && configured.trim() !== "" ? configured : process.env.AZURE_RESOURCE_NAME
@@ -35,7 +35,7 @@ export const AzurePlugin = define({
           if (
             !evt.options.resourceName &&
             !evt.options.baseURL &&
-            (!evt.model.aisdk || typeof evt.model.settings?.baseURL !== "string")
+            (!ProviderV2.isAISDK(evt.model.package) || typeof evt.model.settings?.baseURL !== "string")
           ) {
             throw new Error(
               "AZURE_RESOURCE_NAME is missing, set it using env var or reconnecting the azure provider and setting it",
@@ -67,8 +67,8 @@ export const AzureCognitiveServicesPlugin = define({
         const resourceName = process.env.AZURE_COGNITIVE_SERVICES_RESOURCE_NAME
         if (!resourceName) return
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/openai-compatible") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/openai-compatible") continue
           if (!item.provider.id.includes("azure-cognitive-services")) continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.settings = {
diff --git a/packages/core/src/plugin/provider/cerebras.ts b/packages/core/src/plugin/provider/cerebras.ts
index cb15cb9312..c0829c1c66 100644
--- a/packages/core/src/plugin/provider/cerebras.ts
+++ b/packages/core/src/plugin/provider/cerebras.ts
@@ -1,5 +1,6 @@
 import { Effect } from "effect"
 import { define } from "../internal"
+import { ProviderV2 } from "../../provider"
 
 export const CerebrasPlugin = define({
   id: "cerebras",
@@ -7,8 +8,8 @@ export const CerebrasPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/cerebras") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/cerebras") continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.headers = { ...provider.headers, "X-Cerebras-3rd-Party-Integration": "opencode" }
           })
diff --git a/packages/core/src/plugin/provider/cloudflare-workers-ai.ts b/packages/core/src/plugin/provider/cloudflare-workers-ai.ts
index 0ed7b0dffa..08a988b198 100644
--- a/packages/core/src/plugin/provider/cloudflare-workers-ai.ts
+++ b/packages/core/src/plugin/provider/cloudflare-workers-ai.ts
@@ -14,7 +14,7 @@ export const CloudflareWorkersAIPlugin = define({
         const item = evt.provider.get(providerID)
         if (!item) return
         evt.provider.update(item.provider.id, (provider) => {
-          if (!provider.aisdk) return
+          if (!ProviderV2.isAISDK(provider.package)) return
           if (typeof provider.settings?.baseURL === "string") return
           const accountId = resolveAccountId(provider.settings ?? {})
           if (accountId) provider.settings = { ...provider.settings, baseURL: workersEndpoint(accountId) }
@@ -54,8 +54,11 @@ function workersEndpoint(accountId: string) {
   return `https://api.cloudflare.com/client/v4/accounts/${accountId}/ai/v1`
 }
 
-function hasWorkersEndpoint(model: { readonly aisdk?: true; readonly settings?: Readonly<Record<string, unknown>> }) {
-  return model.aisdk && typeof model.settings?.baseURL === "string"
+function hasWorkersEndpoint(model: {
+  readonly package?: string
+  readonly settings?: Readonly<Record<string, unknown>>
+}) {
+  return ProviderV2.isAISDK(model.package) && typeof model.settings?.baseURL === "string"
 }
 
 function sdkOptions(options: Record<string, any>) {
diff --git a/packages/core/src/plugin/provider/google-vertex.ts b/packages/core/src/plugin/provider/google-vertex.ts
index fa7afc98bf..202c9ead20 100644
--- a/packages/core/src/plugin/provider/google-vertex.ts
+++ b/packages/core/src/plugin/provider/google-vertex.ts
@@ -60,12 +60,12 @@ export const GoogleVertexPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
           if (
-            item.provider.package !== "@ai-sdk/google-vertex" &&
+            ProviderV2.packageName(item.provider.package) !== "@ai-sdk/google-vertex" &&
             !(
               item.provider.id === ProviderV2.ID.googleVertex &&
-              item.provider.package.includes("@ai-sdk/openai-compatible")
+              ProviderV2.packageName(item.provider.package)?.includes("@ai-sdk/openai-compatible")
             )
           )
             continue
@@ -79,7 +79,7 @@ export const GoogleVertexPlugin = define({
               ...(typeof provider.settings?.baseURL === "string"
                 ? { baseURL: replaceVertexVars(provider.settings.baseURL, project, location) }
                 : {}),
-              ...(provider.package.includes("@ai-sdk/openai-compatible")
+              ...(ProviderV2.packageName(provider.package)?.includes("@ai-sdk/openai-compatible")
                 ? { fetch: authFetch(provider.settings?.fetch) }
                 : {}),
             }
@@ -121,8 +121,8 @@ export const GoogleVertexAnthropicPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/google-vertex/anthropic") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/google-vertex/anthropic") continue
           const project =
             item.provider.settings?.project ??
             process.env.GOOGLE_CLOUD_PROJECT ??
diff --git a/packages/core/src/plugin/provider/kilo.ts b/packages/core/src/plugin/provider/kilo.ts
index 9cfd5b2791..e3436cbea0 100644
--- a/packages/core/src/plugin/provider/kilo.ts
+++ b/packages/core/src/plugin/provider/kilo.ts
@@ -1,5 +1,6 @@
 import { Effect } from "effect"
 import { define } from "../internal"
+import { ProviderV2 } from "../../provider"
 
 export const KiloPlugin = define({
   id: "kilo",
@@ -7,8 +8,8 @@ export const KiloPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/openai-compatible") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/openai-compatible") continue
           if (item.provider.settings?.baseURL !== "https://api.kilo.ai/api/gateway") continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.headers = { ...provider.headers, "HTTP-Referer": "https://opencode.ai/", "X-Title": "opencode" }
diff --git a/packages/core/src/plugin/provider/llmgateway.ts b/packages/core/src/plugin/provider/llmgateway.ts
index 73ee23b876..82cc67727a 100644
--- a/packages/core/src/plugin/provider/llmgateway.ts
+++ b/packages/core/src/plugin/provider/llmgateway.ts
@@ -1,6 +1,7 @@
 import { Effect } from "effect"
 import { define } from "../internal"
 import { Integration } from "../../integration"
+import { ProviderV2 } from "../../provider"
 
 export const LLMGatewayPlugin = define({
   id: "llmgateway",
@@ -10,8 +11,8 @@ export const LLMGatewayPlugin = define({
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
           if (item.provider.disabled) continue
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/openai-compatible") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/openai-compatible") continue
           if (item.provider.settings?.baseURL !== "https://api.llmgateway.io/v1") continue
           if (!(yield* integrations.get(Integration.ID.make(item.provider.id)))) continue
           evt.provider.update(item.provider.id, (provider) => {
diff --git a/packages/core/src/plugin/provider/nvidia.ts b/packages/core/src/plugin/provider/nvidia.ts
index 5a80180aa6..dbab4edbda 100644
--- a/packages/core/src/plugin/provider/nvidia.ts
+++ b/packages/core/src/plugin/provider/nvidia.ts
@@ -1,5 +1,6 @@
 import { Effect } from "effect"
 import { define } from "../internal"
+import { ProviderV2 } from "../../provider"
 
 export const NvidiaPlugin = define({
   id: "nvidia",
@@ -7,8 +8,8 @@ export const NvidiaPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/openai-compatible") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/openai-compatible") continue
           if (item.provider.settings?.baseURL !== "https://integrate.api.nvidia.com/v1") continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.headers = {
diff --git a/packages/core/src/plugin/provider/openai.ts b/packages/core/src/plugin/provider/openai.ts
index dda85b4688..6119b259da 100644
--- a/packages/core/src/plugin/provider/openai.ts
+++ b/packages/core/src/plugin/provider/openai.ts
@@ -156,8 +156,8 @@ export const OpenAIPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/openai") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/openai") continue
           if (!item.models.has(ModelV2.ID.make("gpt-5-chat-latest"))) continue
           evt.model.update(item.provider.id, ModelV2.ID.make("gpt-5-chat-latest"), (model) => {
             // OpenAIPlugin sends OpenAI models through Responses; this alias is a
diff --git a/packages/core/src/plugin/provider/opencode.ts b/packages/core/src/plugin/provider/opencode.ts
index 29e1eb704a..47d3d09648 100644
--- a/packages/core/src/plugin/provider/opencode.ts
+++ b/packages/core/src/plugin/provider/opencode.ts
@@ -111,8 +111,7 @@ export const OpencodePlugin = define<HttpClient.HttpClient | EventV2.Service | S
         catalog.provider.update(providerID, (provider) => {
           provider.integrationID = Integration.ID.make("opencode")
           if (item.name !== undefined) provider.name = item.name
-          provider.package = item.npm ?? ""
-          provider.aisdk = item.npm ? true : undefined
+          provider.package = item.npm ? ProviderV2.aisdk(item.npm) : ""
           provider.settings = {
             ...provider.settings,
             ...withoutCredentials(item.options),
@@ -132,8 +131,7 @@ export const OpencodePlugin = define<HttpClient.HttpClient | EventV2.Service | S
             if (config.name !== undefined) model.name = config.name
             if (config.id !== undefined) model.modelID = config.id
             if (config.provider !== undefined) {
-              model.package = config.provider.npm
-              model.aisdk = config.provider.npm ? true : undefined
+              model.package = config.provider.npm ? ProviderV2.aisdk(config.provider.npm) : undefined
               if (config.provider.api) model.settings = { ...model.settings, baseURL: config.provider.api }
             }
             if (config.tool_call !== undefined) model.capabilities.tools = config.tool_call
diff --git a/packages/core/src/plugin/provider/openrouter.ts b/packages/core/src/plugin/provider/openrouter.ts
index eb26dcb08d..99bbaff787 100644
--- a/packages/core/src/plugin/provider/openrouter.ts
+++ b/packages/core/src/plugin/provider/openrouter.ts
@@ -1,5 +1,6 @@
 import { Effect } from "effect"
 import { ModelV2 } from "../../model"
+import { ProviderV2 } from "../../provider"
 import { define } from "../internal"
 
 export const OpenRouterPlugin = define({
@@ -8,8 +9,8 @@ export const OpenRouterPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@openrouter/ai-sdk-provider") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@openrouter/ai-sdk-provider") continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.headers = { ...provider.headers, "HTTP-Referer": "https://opencode.ai/", "X-Title": "opencode" }
           })
diff --git a/packages/core/src/plugin/provider/vercel.ts b/packages/core/src/plugin/provider/vercel.ts
index da67661abe..fba7898658 100644
--- a/packages/core/src/plugin/provider/vercel.ts
+++ b/packages/core/src/plugin/provider/vercel.ts
@@ -1,5 +1,6 @@
 import { Effect } from "effect"
 import { define } from "../internal"
+import { ProviderV2 } from "../../provider"
 
 export const VercelPlugin = define({
   id: "vercel",
@@ -7,8 +8,8 @@ export const VercelPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/vercel") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/vercel") continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.headers = { ...provider.headers, "http-referer": "https://opencode.ai/", "x-title": "opencode" }
           })
diff --git a/packages/core/src/plugin/provider/zenmux.ts b/packages/core/src/plugin/provider/zenmux.ts
index a37d7f0678..757d4babbe 100644
--- a/packages/core/src/plugin/provider/zenmux.ts
+++ b/packages/core/src/plugin/provider/zenmux.ts
@@ -1,5 +1,6 @@
 import { Effect } from "effect"
 import { define } from "../internal"
+import { ProviderV2 } from "../../provider"
 
 export const ZenmuxPlugin = define({
   id: "zenmux",
@@ -7,8 +8,8 @@ export const ZenmuxPlugin = define({
     yield* ctx.catalog.transform(
       Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (!item.provider.aisdk) continue
-          if (item.provider.package !== "@ai-sdk/openai-compatible") continue
+          if (!ProviderV2.isAISDK(item.provider.package)) continue
+          if (ProviderV2.packageName(item.provider.package) !== "@ai-sdk/openai-compatible") continue
           if (item.provider.settings?.baseURL !== "https://zenmux.ai/api/v1") continue
           evt.provider.update(item.provider.id, (provider) => {
             provider.headers = {
diff --git a/packages/core/src/plugin/variant.ts b/packages/core/src/plugin/variant.ts
index ccdbd5a15c..41d1bfd106 100644
--- a/packages/core/src/plugin/variant.ts
+++ b/packages/core/src/plugin/variant.ts
@@ -2,6 +2,7 @@ export * as VariantPlugin from "./variant"
 
 import { Effect } from "effect"
 import { ModelV2 } from "../model"
+import { ProviderV2 } from "../provider"
 import { define } from "./internal"
 
 export const Plugin = define({
@@ -29,9 +30,10 @@ export const Plugin = define({
 
 export function generate(
   model: ModelV2.Info,
-  provider?: { readonly package: string; readonly aisdk?: true },
+  provider?: { readonly package: string },
 ): NonNullable<ModelV2.Info["variants"]> {
-  if (!(model.aisdk ?? provider?.aisdk) || (model.package ?? provider?.package) !== "@ai-sdk/openai-compatible") return []
+  const packageName = model.package ?? provider?.package
+  if (!ProviderV2.isAISDK(packageName) || ProviderV2.packageName(packageName) !== "@ai-sdk/openai-compatible") return []
   const ids = `${model.id} ${model.modelID ?? ""}`.toLowerCase()
   if (!["glm-5.2", "glm-5-2", "glm-5p2"].some((name) => ids.includes(name))) return []
   return ["high", "max"].map((id) => ({
diff --git a/packages/core/src/provider-overlay.ts b/packages/core/src/provider-overlay.ts
new file mode 100644
index 0000000000..f5f7aca8e8
--- /dev/null
+++ b/packages/core/src/provider-overlay.ts
@@ -0,0 +1,38 @@
+export * as ProviderOverlay from "./provider-overlay"
+
+export function merge(
+  base: Readonly<Record<string, unknown>> | undefined,
+  overlay: Readonly<Record<string, unknown>> | undefined,
+): Record<string, unknown> | undefined {
+  if (base === undefined) return overlay && { ...overlay }
+  if (overlay === undefined) return { ...base }
+  return Object.fromEntries(
+    new Set([...Object.keys(base), ...Object.keys(overlay)]).values().map((key) => {
+      const left = base[key]
+      const right = overlay[key]
+      if (right === undefined) return [key, left]
+      if (plain(left) && plain(right)) return [key, merge(left, right)]
+      return [key, right]
+    }),
+  )
+}
+
+export function headers(
+  base: Readonly<Record<string, string>> | undefined,
+  overlay: Readonly<Record<string, string>> | undefined,
+) {
+  return Object.fromEntries(
+    [...Object.entries(base ?? {}), ...Object.entries(overlay ?? {})]
+      .reduce((result, entry) => {
+        result.set(entry[0].toLowerCase(), entry)
+        return result
+      }, new Map<string, [string, string]>())
+      .values(),
+  )
+}
+
+function plain(input: unknown): input is Readonly<Record<string, unknown>> {
+  if (typeof input !== "object" || input === null || Array.isArray(input)) return false
+  const prototype = Object.getPrototypeOf(input)
+  return prototype === Object.prototype || prototype === null
+}
diff --git a/packages/core/src/provider-package.ts b/packages/core/src/provider-package.ts
new file mode 100644
index 0000000000..559caf0d0f
--- /dev/null
+++ b/packages/core/src/provider-package.ts
@@ -0,0 +1,75 @@
+export * as ProviderPackage from "./provider-package"
+
+import { Effect, Option, Schema } from "effect"
+import { pathToFileURL } from "url"
+import type { Model, ProviderPackageDefinition, ProviderPackageSettings } from "@opencode-ai/llm"
+import { Npm } from "./npm"
+
+const cache = new Map<string, Promise<unknown>>()
+
+export class LoadError extends Schema.TaggedErrorClass<LoadError>()("ProviderPackage.LoadError", {
+  package: Schema.String,
+  cause: Schema.Defect(),
+}) {}
+
+export const load = Effect.fn("ProviderPackage.load")(function* (specifier: string) {
+  const npm = Option.getOrUndefined(yield* Effect.serviceOption(Npm.Service))
+  const resolved =
+    specifier.startsWith("file://") || specifier.startsWith("@opencode-ai/llm/")
+      ? specifier
+      : yield* Effect.sync(() => {
+          try {
+            return import.meta.resolve(specifier)
+          } catch {
+            return undefined
+          }
+        })
+  if (resolved) return yield* importProviderPackage(specifier, resolved)
+  if (!npm) {
+    return yield* new LoadError({
+      package: specifier,
+      cause: new Error(`Provider package ${specifier} is not installed`),
+    })
+  }
+  const installed = yield* npm
+    .add(packageName(specifier))
+    .pipe(Effect.mapError((cause) => new LoadError({ package: specifier, cause })))
+  const entrypoint = yield* Effect.try({
+    try: () => import.meta.resolve(specifier, pathToFileURL(`${installed.directory}/`).href),
+    catch: (cause) => new LoadError({ package: specifier, cause }),
+  })
+  return yield* importProviderPackage(specifier, entrypoint)
+})
+
+const importProviderPackage = Effect.fn("ProviderPackage.import")(function* (specifier: string, entrypoint: string) {
+  const module = yield* Effect.tryPromise({
+    try: () => {
+      const existing = cache.get(entrypoint)
+      if (existing) return existing
+      const loaded = import(entrypoint)
+      cache.set(entrypoint, loaded)
+      return loaded
+    },
+    catch: (cause) => new LoadError({ package: specifier, cause }),
+  })
+  if (!isProviderPackage(module)) {
+    return yield* new LoadError({
+      package: specifier,
+      cause: new Error(`Provider package ${specifier} does not export model(id, settings)`),
+    })
+  }
+  return module
+})
+
+export const make = (module: ProviderPackageDefinition, modelID: string, settings: ProviderPackageSettings): Model =>
+  module.model(modelID, settings)
+
+function isProviderPackage(input: unknown): input is ProviderPackageDefinition {
+  return typeof input === "object" && input !== null && "model" in input && typeof input.model === "function"
+}
+
+function packageName(specifier: string) {
+  const parts = specifier.split("/")
+  if (specifier.startsWith("@")) return parts.slice(0, 2).join("/")
+  return parts[0]
+}
diff --git a/packages/core/src/provider.ts b/packages/core/src/provider.ts
index 576abd3df1..3246c8d36e 100644
--- a/packages/core/src/provider.ts
+++ b/packages/core/src/provider.ts
@@ -1,15 +1,21 @@
 export * as ProviderV2 from "./provider"
 
-import { Types } from "effect"
 import { Provider } from "@opencode-ai/schema/provider"
+import type { DeepMutable } from "./schema"
 
 export const ID = Provider.ID
 export type ID = typeof ID.Type
 
+export const AISDK_PREFIX = "aisdk:"
+export const isAISDK = (packageName: string | undefined) => packageName?.startsWith(AISDK_PREFIX) ?? false
+export const aisdk = (packageName: string) => (isAISDK(packageName) ? packageName : `${AISDK_PREFIX}${packageName}`)
+export const packageName = (packageName: string | undefined) =>
+  isAISDK(packageName) ? packageName!.slice(AISDK_PREFIX.length) : packageName
+
 export const Request = Provider.Request
 export type Request = Provider.Request
 
 export const Info = Provider.Info
 export type Info = Provider.Info
 
-export type MutableInfo = Types.DeepMutable<Info>
+export type MutableInfo = DeepMutable<Info>
diff --git a/packages/core/src/session/runner/model.ts b/packages/core/src/session/runner/model.ts
index f8cc794a86..464bab36a6 100644
--- a/packages/core/src/session/runner/model.ts
+++ b/packages/core/src/session/runner/model.ts
@@ -12,6 +12,8 @@ import { Credential } from "../../credential"
 import { Integration } from "../../integration"
 import { ModelV2 } from "../../model"
 import { ProviderV2 } from "../../provider"
+import { ProviderPackage } from "../../provider-package"
+import { ProviderOverlay } from "../../provider-overlay"
 import { SessionSchema } from "../schema"
 
 export class ModelNotSelectedError extends Schema.TaggedErrorClass<ModelNotSelectedError>()(
@@ -117,9 +119,9 @@ const withVariant = (
   return Effect.succeed(
     variant
       ? produce(model, (draft) => {
-          draft.settings = merge(draft.settings, variant.settings)
-          draft.headers = { ...draft.headers, ...variant.headers }
-          draft.body = merge(draft.body, variant.body)
+          draft.settings = ProviderOverlay.merge(draft.settings, variant.settings)
+          draft.headers = ProviderOverlay.headers(draft.headers, variant.headers)
+          draft.body = ProviderOverlay.merge(draft.body, variant.body)
         })
       : model,
   )
@@ -133,17 +135,18 @@ export const fromCatalogModel = (
     credential?.metadata === undefined
       ? model
       : produce(model, (draft) => {
-          draft.settings = { ...draft.settings, ...credential.metadata }
+          draft.settings = ProviderOverlay.merge(draft.settings, credential.metadata)
         })
   const key = apiKey(resolved, credential)
-  if (resolved.aisdk && resolved.package === "@ai-sdk/openai") {
+  const packageName = ProviderV2.packageName(resolved.package)
+  if (ProviderV2.isAISDK(resolved.package) && packageName === "@ai-sdk/openai") {
     return Effect.succeed(
       withDefaults(resolved, OpenAIResponses.route)
         .with({ auth: key === undefined ? Auth.none : Auth.bearer(key) })
         .model({ id: resolved.modelID ?? resolved.id }),
     )
   }
-  if (resolved.aisdk && resolved.package === "@ai-sdk/anthropic") {
+  if (ProviderV2.isAISDK(resolved.package) && packageName === "@ai-sdk/anthropic") {
     return Effect.succeed(
       withDefaults(resolved, AnthropicMessages.route)
         .with({ auth: key === undefined ? Auth.none : Auth.header("x-api-key", key) })
@@ -151,8 +154,8 @@ export const fromCatalogModel = (
     )
   }
   if (
-    resolved.aisdk &&
-    resolved.package === "@ai-sdk/openai-compatible" &&
+    ProviderV2.isAISDK(resolved.package) &&
+    packageName === "@ai-sdk/openai-compatible" &&
     typeof resolved.settings?.baseURL === "string"
   ) {
     return Effect.succeed(
@@ -161,11 +164,44 @@ export const fromCatalogModel = (
         .model({ id: resolved.modelID ?? resolved.id }),
     )
   }
+  if (!ProviderV2.isAISDK(resolved.package) && resolved.package) {
+    const specifier = resolved.package
+    return Effect.gen(function* () {
+      const module = yield* ProviderPackage.load(specifier).pipe(
+        Effect.mapError(
+          () =>
+            new UnsupportedPackageError({
+              providerID: resolved.providerID,
+              modelID: resolved.id,
+              package: specifier,
+            }),
+        ),
+      )
+      const settings = {
+        ...resolved.settings,
+        ...(credential?.type === "key" ? { apiKey: credential.key } : {}),
+        ...(credential?.type === "oauth" ? { apiKey: credential.access } : {}),
+        ...credential?.metadata,
+        headers: resolved.headers,
+        body: resolved.body,
+        limits: { context: resolved.limit.context, output: resolved.limit.output },
+      }
+      return yield* Effect.try({
+        try: () => ProviderPackage.make(module, resolved.modelID ?? resolved.id, settings),
+        catch: () =>
+          new UnsupportedPackageError({
+            providerID: resolved.providerID,
+            modelID: resolved.id,
+            package: specifier,
+          }),
+      })
+    })
+  }
   return Effect.fail(
     new UnsupportedPackageError({
       providerID: resolved.providerID,
       modelID: resolved.id,
-      package: resolved.aisdk ? `aisdk:${resolved.package}` : (resolved.package ?? "unknown"),
+      package: resolved.package ?? "unknown",
     }),
   )
 }
@@ -174,10 +210,12 @@ export const resolve = (session: SessionSchema.Info, model: ModelV2.Info, creden
   withVariant(model, session.model?.variant).pipe(Effect.flatMap((model) => fromCatalogModel(model, credential)))
 
 export const supported = (model: ModelV2.Info) =>
-  model.aisdk === true &&
-  (model.package === "@ai-sdk/openai" ||
-    model.package === "@ai-sdk/anthropic" ||
-    (model.package === "@ai-sdk/openai-compatible" && typeof model.settings?.baseURL === "string"))
+  Boolean(model.package) &&
+  (!ProviderV2.isAISDK(model.package) ||
+    ProviderV2.packageName(model.package) === "@ai-sdk/openai" ||
+    ProviderV2.packageName(model.package) === "@ai-sdk/anthropic" ||
+    (ProviderV2.packageName(model.package) === "@ai-sdk/openai-compatible" &&
+      typeof model.settings?.baseURL === "string"))
 
 /** Resolves models from the catalog belonging to the current Location runtime. */
 export const locationLayer = Layer.effect(
@@ -215,26 +253,3 @@ export const locationLayer = Layer.effect(
     })
   }),
 )
-
-function merge(
-  base: Readonly<Record<string, unknown>> | undefined,
-  overlay: Readonly<Record<string, unknown>> | undefined,
-): Record<string, unknown> | undefined {
-  if (base === undefined) return overlay && { ...overlay }
-  if (overlay === undefined) return { ...base }
-  return Object.fromEntries(
-    Array.from(new Set([...Object.keys(base), ...Object.keys(overlay)])).map((key) => {
-      const left = base[key]
-      const right = overlay[key]
-      if (right === undefined) return [key, left]
-      if (plain(left) && plain(right)) return [key, merge(left, right)]
-      return [key, right]
-    }),
-  )
-}
-
-function plain(input: unknown): input is Readonly<Record<string, unknown>> {
-  if (typeof input !== "object" || input === null || Array.isArray(input)) return false
-  const prototype = Object.getPrototypeOf(input)
-  return prototype === Object.prototype || prototype === null
-}
diff --git a/packages/core/src/v1/config/migrate.ts b/packages/core/src/v1/config/migrate.ts
index f0fcd1402f..7489878c6e 100644
--- a/packages/core/src/v1/config/migrate.ts
+++ b/packages/core/src/v1/config/migrate.ts
@@ -6,6 +6,7 @@ import { ConfigMCPV1 } from "./mcp"
 import { ConfigPermissionV1 } from "./permission"
 import { ConfigProviderV1 } from "./provider"
 import { ConfigProviderOptionsV1 } from "./provider-options"
+import { ProviderV2 } from "../../provider"
 
 const keys = new Set([
   "logLevel",
@@ -173,8 +174,7 @@ function migrateProvider(info: ConfigProviderV1.Info) {
   return {
     name: info.name,
     env: info.env,
-    package: info.npm,
-    aisdk: info.npm ? (true as const) : undefined,
+    package: info.npm ? ProviderV2.aisdk(info.npm) : undefined,
     settings: info.api ? { ...options.settings, baseURL: info.api } : options.settings,
     headers: info.options && options.headers,
     body: info.options && options.body,
@@ -213,8 +213,7 @@ function migrateModel(info: typeof ConfigProviderV1.Model.Type, packageName?: st
     modelID: info.id,
     family: info.family,
     name: info.name,
-    package: info.provider?.npm,
-    aisdk: info.provider?.npm ? (true as const) : undefined,
+    package: info.provider?.npm ? ProviderV2.aisdk(info.provider.npm) : undefined,
     settings: info.provider?.api ? { ...settings, baseURL: info.provider.api } : settings,
     capabilities,
     headers: info.headers,
diff --git a/packages/core/test/catalog.test.ts b/packages/core/test/catalog.test.ts
index ec5cc3010a..2c30342a2f 100644
--- a/packages/core/test/catalog.test.ts
+++ b/packages/core/test/catalog.test.ts
@@ -141,15 +141,13 @@ describe("CatalogV2", () => {
       const providerID = ProviderV2.ID.make("test")
       yield* catalog.transform((catalog) =>
         catalog.provider.update(providerID, (provider) => {
-          provider.package = "@ai-sdk/openai-compatible"
-          provider.aisdk = true
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { baseURL: "https://override.example.com" }
         }),
       )
 
       expect(required(yield* catalog.provider.get(providerID))).toMatchObject({
-        package: "@ai-sdk/openai-compatible",
-        aisdk: true,
+        package: "aisdk:@ai-sdk/openai-compatible",
         settings: { baseURL: "https://override.example.com" },
       })
     }),
@@ -162,8 +160,7 @@ describe("CatalogV2", () => {
       const modelID = ModelV2.ID.make("model")
       yield* catalog.transform((catalog) => {
         catalog.provider.update(providerID, (provider) => {
-          provider.package = "@ai-sdk/openai-compatible"
-          provider.aisdk = true
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { baseURL: "https://provider.example.com" }
         })
         catalog.model.update(providerID, modelID, (model) => {
@@ -175,8 +172,7 @@ describe("CatalogV2", () => {
       expect(required(yield* catalog.model.get(providerID, modelID))).toMatchObject({
         id: modelID,
         modelID: ModelV2.ID.make("upstream-model"),
-        package: "@ai-sdk/openai-compatible",
-        aisdk: true,
+        package: "aisdk:@ai-sdk/openai-compatible",
         settings: { baseURL: "https://override.example.com" },
       })
     }),
@@ -189,8 +185,7 @@ describe("CatalogV2", () => {
       const modelID = ModelV2.ID.make("model")
       yield* catalog.transform((catalog) => {
         catalog.provider.update(providerID, (provider) => {
-          provider.package = "@ai-sdk/openai-compatible"
-          provider.aisdk = true
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { baseURL: "https://provider.example.com" }
         })
         catalog.model.update(providerID, modelID, () => {})
@@ -198,8 +193,7 @@ describe("CatalogV2", () => {
 
       expect(required(yield* catalog.model.get(providerID, modelID))).toMatchObject({
         id: modelID,
-        package: "@ai-sdk/openai-compatible",
-        aisdk: true,
+        package: "aisdk:@ai-sdk/openai-compatible",
         settings: { baseURL: "https://provider.example.com" },
       })
     }),
@@ -212,18 +206,36 @@ describe("CatalogV2", () => {
       const modelID = ModelV2.ID.make("model")
       yield* catalog.transform((catalog) => {
         catalog.provider.update(providerID, (provider) => {
-          provider.headers = { provider: "provider", shared: "provider" }
-          provider.body = { provider: true }
+          provider.headers = { provider: "provider", "X-Shared": "provider" }
+          provider.body = {
+            provider: true,
+            reasoning: { type: "enabled", budget: 8_000 },
+            stop: ["END"],
+            disabled: { type: "enabled" },
+          }
         })
         catalog.model.update(providerID, modelID, (model) => {
-          model.headers = { model: "model", shared: "model" }
-          model.body = { model: true, request: true, shared: "model" }
+          model.headers = { model: "model", "x-shared": "model" }
+          model.body = {
+            model: true,
+            request: true,
+            reasoning: { budget: 32_000 },
+            stop: ["STOP"],
+            disabled: null,
+          }
         })
       })
 
       const model = required(yield* catalog.model.get(providerID, modelID))
-      expect(model.headers).toEqual({ provider: "provider", shared: "model", model: "model" })
-      expect(model.body).toEqual({ provider: true, model: true, request: true, shared: "model" })
+      expect(model.headers).toEqual({ provider: "provider", "x-shared": "model", model: "model" })
+      expect(model.body).toEqual({
+        provider: true,
+        model: true,
+        request: true,
+        reasoning: { type: "enabled", budget: 32_000 },
+        stop: ["STOP"],
+        disabled: null,
+      })
     }),
   )
 
diff --git a/packages/core/test/config/config.test.ts b/packages/core/test/config/config.test.ts
index d74ea49c79..12fc4d408f 100644
--- a/packages/core/test/config/config.test.ts
+++ b/packages/core/test/config/config.test.ts
@@ -101,8 +101,7 @@ describe("Config", () => {
       })
 
       expect(migrated.providers?.bedrock).toMatchObject({
-        package: "@ai-sdk/amazon-bedrock",
-        aisdk: true,
+        package: "aisdk:@ai-sdk/amazon-bedrock",
         settings: { baseURL: "https://bedrock.example.com", region: "us-east-1", profile: "dev" },
         headers: { "x-test": "1" },
         body: { trace: true },
@@ -588,8 +587,7 @@ describe("Config", () => {
               },
             })
             expect(documents[0]?.info.providers?.openai).toMatchObject({
-              package: "@ai-sdk/openai",
-              aisdk: true,
+              package: "aisdk:@ai-sdk/openai",
               settings: { apiKey: "secret", organization: "org" },
               models: {
                 model: {
diff --git a/packages/core/test/config/provider.test.ts b/packages/core/test/config/provider.test.ts
index 9ca8b8ca1e..d1d27dc6e9 100644
--- a/packages/core/test/config/provider.test.ts
+++ b/packages/core/test/config/provider.test.ts
@@ -61,8 +61,7 @@ describe("ConfigProviderPlugin.Plugin", () => {
               info: decode({
                 providers: {
                   opencode: {
-                    package: "@ai-sdk/openai",
-                    aisdk: true,
+                    package: "aisdk:@ai-sdk/openai",
                     settings: { baseURL: "https://opencode.test/v1" },
                     models: {
                       "alpha-gpt-next": {
@@ -114,8 +113,7 @@ describe("ConfigProviderPlugin.Plugin", () => {
               info: decode({
                 providers: {
                   opencode: {
-                    package: "@ai-sdk/openai",
-                    aisdk: true,
+                    package: "aisdk:@ai-sdk/openai",
                     settings: { baseURL: "https://opencode.test/v1" },
                   },
                 },
@@ -195,8 +193,7 @@ describe("ConfigProviderPlugin.Plugin", () => {
                   model: "custom/default",
                   providers: {
                     custom: {
-                      package: "custom-sdk",
-                      aisdk: true,
+                      package: "aisdk:custom-sdk",
                       settings: { baseURL: "https://example.test" },
                       headers: { last: "last", shared: "last" },
                       models: {
@@ -247,8 +244,7 @@ describe("ConfigProviderPlugin.Plugin", () => {
         })
         expect((yield* integrations.get(Integration.ID.make("custom")))?.name).toBe("Renamed")
         expect(provider.disabled).toBeUndefined()
-        expect(provider.package).toBe("custom-sdk")
-        expect(provider.aisdk).toBe(true)
+        expect(provider.package).toBe("aisdk:custom-sdk")
         expect(provider.settings).toEqual({ baseURL: "https://example.test" })
         expect(provider.headers).toEqual({ first: "first", shared: "last", last: "last" })
         expect(model.id).toBe(modelID)
diff --git a/packages/core/test/plugin/provider-alibaba.test.ts b/packages/core/test/plugin/provider-alibaba.test.ts
index 3bf2e0b325..bb7f922e52 100644
--- a/packages/core/test/plugin/provider-alibaba.test.ts
+++ b/packages/core/test/plugin/provider-alibaba.test.ts
@@ -29,8 +29,7 @@ describe("AlibabaPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("alibaba"), ModelV2.ID.make("qwen")),
           modelID: ModelV2.ID.make("qwen"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/alibaba",
         options: { name: "alibaba" },
@@ -48,8 +47,7 @@ describe("AlibabaPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("alibaba"), ModelV2.ID.make("qwen")),
           modelID: ModelV2.ID.make("qwen"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "alibaba" },
@@ -67,8 +65,7 @@ describe("AlibabaPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-alibaba"), ModelV2.ID.make("qwen")),
           modelID: ModelV2.ID.make("qwen"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/alibaba",
         options: { name: "custom-alibaba", apiKey: "test" },
@@ -88,8 +85,7 @@ describe("AlibabaPlugin", () => {
       const item = ModelV2.Info.make({
         ...ModelV2.Info.empty(ProviderV2.ID.make("alibaba"), ModelV2.ID.make("alias")),
         modelID: ModelV2.ID.make("qwen-plus"),
-        aisdk: true,
-        package: "test-provider",
+        package: "aisdk:test-provider",
       })
       const result = yield* aisdk.runSDK({ model: item, package: "@ai-sdk/alibaba", options: {} })
       const language = result.sdk?.languageModel(item.modelID ?? item.id)
diff --git a/packages/core/test/plugin/provider-amazon-bedrock.test.ts b/packages/core/test/plugin/provider-amazon-bedrock.test.ts
index 42e9fc10ec..da47e55e90 100644
--- a/packages/core/test/plugin/provider-amazon-bedrock.test.ts
+++ b/packages/core/test/plugin/provider-amazon-bedrock.test.ts
@@ -85,13 +85,12 @@ describe("AmazonBedrockPlugin", () => {
       yield* catalog.transform((catalog) => {
         const bedrock = ProviderV2.Info.make({
           ...ProviderV2.Info.empty(ProviderV2.ID.amazonBedrock),
-          aisdk: true,
-          package: "@ai-sdk/amazon-bedrock",
+          package: "aisdk:@ai-sdk/amazon-bedrock",
           headers: {},
           settings: { endpoint: "https://bedrock.example" },
         })
         catalog.provider.update(bedrock.id, (item) => {
-          item.aisdk = bedrock.aisdk
+          item.package = bedrock.package
           item.package = bedrock.package
           item.headers = bedrock.headers
           item.settings = { endpoint: "https://bedrock.example" }
@@ -100,8 +99,7 @@ describe("AmazonBedrockPlugin", () => {
       yield* addPlugin()
       const result = required(yield* catalog.provider.get(ProviderV2.ID.amazonBedrock))
       expect(result).toMatchObject({
-        aisdk: true,
-        package: "@ai-sdk/amazon-bedrock",
+        package: "aisdk:@ai-sdk/amazon-bedrock",
         settings: { baseURL: "https://bedrock.example" },
       })
       expect(result.settings?.endpoint).toBeUndefined()
@@ -118,8 +116,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/amazon-bedrock",
           options: {
@@ -145,8 +142,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/amazon-bedrock",
           options: {
@@ -181,8 +177,7 @@ describe("AmazonBedrockPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
               modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "@ai-sdk/amazon-bedrock",
             options: { name: "amazon-bedrock" },
@@ -203,8 +198,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/amazon-bedrock",
           options: { name: "amazon-bedrock", region: "eu-west-1" },
@@ -224,8 +218,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/amazon-bedrock",
           options: { name: "amazon-bedrock" },
@@ -245,8 +238,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/amazon-bedrock",
           options: { name: "amazon-bedrock" },
@@ -267,8 +259,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/amazon-bedrock",
           options: {
@@ -298,8 +289,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/amazon-bedrock",
           options: {
@@ -328,8 +318,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("openai.gpt-5.5")),
             modelID: ModelV2.ID.make("openai.gpt-5.5"),
-            aisdk: true,
-            package: "@ai-sdk/amazon-bedrock/mantle",
+            package: "aisdk:@ai-sdk/amazon-bedrock/mantle",
           }),
           package: "@ai-sdk/amazon-bedrock/mantle",
           options: {
@@ -357,8 +346,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("openai.gpt-5.5")),
           modelID: ModelV2.ID.make("openai.gpt-5.5"),
-          aisdk: true,
-          package: "@ai-sdk/amazon-bedrock/mantle",
+          package: "aisdk:@ai-sdk/amazon-bedrock/mantle",
         }),
         sdk: fakeSelectorSdk(calls),
         options: { baseURL: "https://bedrock-mantle.us-east-2.api.aws/openai/v1", region: "us-east-2" },
@@ -367,8 +355,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("openai.gpt-oss-safeguard-120b")),
           modelID: ModelV2.ID.make("openai.gpt-oss-safeguard-120b"),
-          aisdk: true,
-          package: "@ai-sdk/amazon-bedrock/mantle",
+          package: "aisdk:@ai-sdk/amazon-bedrock/mantle",
         }),
         sdk: fakeSelectorSdk(calls),
         options: { region: "us-east-1" },
@@ -386,8 +373,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-          aisdk: true,
-          package: "@ai-sdk/amazon-bedrock/anthropic",
+          package: "aisdk:@ai-sdk/amazon-bedrock/anthropic",
         }),
         package: "@ai-sdk/amazon-bedrock/anthropic",
         options: { name: "amazon-bedrock" },
@@ -415,8 +401,7 @@ describe("AmazonBedrockPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
               modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "@ai-sdk/amazon-bedrock",
             options: {
@@ -448,8 +433,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: {},
@@ -458,8 +442,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: { region: "eu-west-1" },
@@ -468,8 +451,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("global.anthropic.claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("global.anthropic.claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: { region: "eu-west-1" },
@@ -478,8 +460,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: { region: "ap-northeast-1" },
@@ -488,8 +469,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: { region: "ap-southeast-2" },
@@ -515,8 +495,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
             modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
           options: {},
@@ -603,8 +582,7 @@ describe("AmazonBedrockPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.amazonBedrock, ModelV2.ID.make(item.modelID)),
             modelID: ModelV2.ID.make(item.modelID),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
           options: { region: item.region },
@@ -624,8 +602,7 @@ describe("AmazonBedrockPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.openai, ModelV2.ID.make("anthropic.claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("anthropic.claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: { region: "eu-west-1" },
diff --git a/packages/core/test/plugin/provider-anthropic.test.ts b/packages/core/test/plugin/provider-anthropic.test.ts
index 53e68a8098..ab9fdf7007 100644
--- a/packages/core/test/plugin/provider-anthropic.test.ts
+++ b/packages/core/test/plugin/provider-anthropic.test.ts
@@ -31,13 +31,12 @@ describe("AnthropicPlugin", () => {
       yield* catalog.transform((catalog) => {
         const item = ProviderV2.Info.make({
           ...ProviderV2.Info.empty(ProviderV2.ID.anthropic),
-          aisdk: true,
-          package: "@ai-sdk/anthropic",
+          package: "aisdk:@ai-sdk/anthropic",
           headers: { Existing: "1" },
           settings: {},
         })
         catalog.provider.update(item.id, (draft) => {
-          draft.aisdk = item.aisdk
+          draft.package = item.package
           draft.package = item.package
           draft.headers = item.headers
         })
@@ -68,8 +67,7 @@ describe("AnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-anthropic"), ModelV2.ID.make("claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("claude-sonnet-4-5"),
-          aisdk: true,
-          package: "@ai-sdk/anthropic",
+          package: "aisdk:@ai-sdk/anthropic",
         }),
         package: "@ai-sdk/anthropic",
         options: { name: "custom-anthropic", apiKey: "test" },
@@ -87,8 +85,7 @@ describe("AnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.anthropic, ModelV2.ID.make("claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("claude-sonnet-4-5"),
-          aisdk: true,
-          package: "@ai-sdk/anthropic",
+          package: "aisdk:@ai-sdk/anthropic",
         }),
         package: "@ai-sdk/anthropic",
         options: { name: "anthropic", apiKey: "test" },
diff --git a/packages/core/test/plugin/provider-azure-cognitive-services.test.ts b/packages/core/test/plugin/provider-azure-cognitive-services.test.ts
index f726f8bf90..f52f013105 100644
--- a/packages/core/test/plugin/provider-azure-cognitive-services.test.ts
+++ b/packages/core/test/plugin/provider-azure-cognitive-services.test.ts
@@ -66,15 +66,13 @@ describe("AzureCognitiveServicesPlugin", () => {
         const catalog = yield* Catalog.Service
         yield* catalog.transform((catalog) => {
           catalog.provider.update(ProviderV2.ID.make("azure-cognitive-services"), (item) => {
-            item.aisdk = true
-            item.package = "@ai-sdk/openai-compatible"
+            item.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           })
         })
         yield* addPlugin()
         const result = required(yield* catalog.provider.get(ProviderV2.ID.make("azure-cognitive-services")))
         expect(result).toMatchObject({
-          aisdk: true,
-          package: "@ai-sdk/openai-compatible",
+          package: "aisdk:@ai-sdk/openai-compatible",
           settings: { baseURL: "https://cognitive.cognitiveservices.azure.com/openai" },
         })
         expect(result.settings?.resourceName).toBeUndefined()
@@ -89,20 +87,18 @@ describe("AzureCognitiveServicesPlugin", () => {
         yield* catalog.transform((catalog) => {
           const azure = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.make("azure-cognitive-services")),
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
           })
           const openai = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.openai),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           })
           catalog.provider.update(azure.id, (item) => {
-            item.aisdk = azure.aisdk
+            item.package = azure.package
             item.package = azure.package
           })
           catalog.provider.update(openai.id, (item) => {
-            item.aisdk = openai.aisdk
+            item.package = openai.package
             item.package = openai.package
           })
         })
@@ -110,9 +106,9 @@ describe("AzureCognitiveServicesPlugin", () => {
         const azure = required(yield* catalog.provider.get(ProviderV2.ID.make("azure-cognitive-services")))
         const openai = required(yield* catalog.provider.get(ProviderV2.ID.openai))
         expect(azure.settings?.baseURL).toBeUndefined()
-        expect(azure).toMatchObject({ aisdk: true, package: "@ai-sdk/openai-compatible" })
+        expect(azure).toMatchObject({ package: "aisdk:@ai-sdk/openai-compatible" })
         expect(openai.settings?.baseURL).toBeUndefined()
-        expect(openai).toMatchObject({ aisdk: true, package: "test-provider" })
+        expect(openai).toMatchObject({ package: "aisdk:test-provider" })
       }),
     ),
   )
@@ -127,8 +123,7 @@ describe("AzureCognitiveServicesPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("azure-cognitive-services"), ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: { useCompletionUrls: true },
@@ -147,8 +142,7 @@ describe("AzureCognitiveServicesPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("azure-cognitive-services"), ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -157,8 +151,7 @@ describe("AzureCognitiveServicesPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.openai, ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -179,8 +172,7 @@ describe("AzureCognitiveServicesPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("azure-cognitive-services"), ModelV2.ID.make("messages-deployment")),
           modelID: ModelV2.ID.make("messages-deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { messages: sdk.messages, chat: sdk.chat, languageModel: sdk.languageModel },
         options: {},
@@ -189,8 +181,7 @@ describe("AzureCognitiveServicesPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("azure-cognitive-services"), ModelV2.ID.make("chat-deployment")),
           modelID: ModelV2.ID.make("chat-deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { chat: sdk.chat, languageModel: sdk.languageModel },
         options: {},
@@ -199,8 +190,7 @@ describe("AzureCognitiveServicesPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("azure-cognitive-services"), ModelV2.ID.make("language-deployment")),
           modelID: ModelV2.ID.make("language-deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: sdk.languageModel },
         options: {},
diff --git a/packages/core/test/plugin/provider-azure.test.ts b/packages/core/test/plugin/provider-azure.test.ts
index 65bad6e289..204b61a089 100644
--- a/packages/core/test/plugin/provider-azure.test.ts
+++ b/packages/core/test/plugin/provider-azure.test.ts
@@ -66,8 +66,7 @@ describe("AzurePlugin", () => {
         const catalog = yield* Catalog.Service
         yield* catalog.transform((catalog) => {
           catalog.provider.update(ProviderV2.ID.azure, (item) => {
-            item.aisdk = true
-            item.package = "@ai-sdk/azure"
+            item.package = ProviderV2.aisdk("@ai-sdk/azure")
           })
         })
         yield* addPlugin()
@@ -83,13 +82,12 @@ describe("AzurePlugin", () => {
         yield* catalog.transform((catalog) => {
           const azure = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.azure),
-            aisdk: true,
-            package: "@ai-sdk/azure",
+            package: "aisdk:@ai-sdk/azure",
             headers: {},
             settings: { resourceName: "from-config" },
           })
           catalog.provider.update(azure.id, (item) => {
-            item.aisdk = azure.aisdk
+            item.package = azure.package
             item.package = azure.package
             item.headers = azure.headers
             item.settings = { resourceName: "from-config" }
@@ -110,13 +108,12 @@ describe("AzurePlugin", () => {
         yield* catalog.transform((catalog) => {
           const azure = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.azure),
-            aisdk: true,
-            package: "@ai-sdk/azure",
+            package: "aisdk:@ai-sdk/azure",
             headers: {},
             settings: { resourceName: "" },
           })
           catalog.provider.update(azure.id, (item) => {
-            item.aisdk = azure.aisdk
+            item.package = azure.package
             item.package = azure.package
             item.headers = azure.headers
             item.settings = { resourceName: "" }
@@ -135,13 +132,12 @@ describe("AzurePlugin", () => {
         yield* catalog.transform((catalog) => {
           const azure = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.azure),
-            aisdk: true,
-            package: "@ai-sdk/azure",
+            package: "aisdk:@ai-sdk/azure",
             headers: {},
             settings: { resourceName: "   " },
           })
           catalog.provider.update(azure.id, (item) => {
-            item.aisdk = azure.aisdk
+            item.package = azure.package
             item.package = azure.package
             item.headers = azure.headers
             item.settings = { resourceName: "   " }
@@ -163,8 +159,7 @@ describe("AzurePlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("deployment")),
             modelID: ModelV2.ID.make("deployment"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/azure",
           options: { name: "azure", baseURL: "https://proxy.example.com/openai" },
@@ -184,8 +179,7 @@ describe("AzurePlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("deployment")),
               modelID: ModelV2.ID.make("deployment"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "@ai-sdk/azure",
             options: { name: "azure" },
@@ -206,8 +200,7 @@ describe("AzurePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: { useCompletionUrls: true },
@@ -226,8 +219,7 @@ describe("AzurePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: { useCompletionUrls: true },
@@ -246,8 +238,7 @@ describe("AzurePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
           headers: {},
           settings: { useCompletionUrls: true },
         }),
@@ -268,8 +259,7 @@ describe("AzurePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -278,8 +268,7 @@ describe("AzurePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.openai, ModelV2.ID.make("deployment")),
           modelID: ModelV2.ID.make("deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -303,8 +292,7 @@ describe("AzurePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("messages-deployment")),
           modelID: ModelV2.ID.make("messages-deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { messages: make("messages"), chat: make("chat"), languageModel: make("languageModel") },
         options: {},
@@ -313,8 +301,7 @@ describe("AzurePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.azure, ModelV2.ID.make("language-deployment")),
           modelID: ModelV2.ID.make("language-deployment"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: make("languageModel") },
         options: {},
diff --git a/packages/core/test/plugin/provider-cerebras.test.ts b/packages/core/test/plugin/provider-cerebras.test.ts
index ae58572c64..eb5c4ec1bf 100644
--- a/packages/core/test/plugin/provider-cerebras.test.ts
+++ b/packages/core/test/plugin/provider-cerebras.test.ts
@@ -36,8 +36,7 @@ describe("CerebrasPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("cerebras"), (item) => {
-          item.aisdk = true
-          item.package = "@ai-sdk/cerebras"
+          item.package = ProviderV2.aisdk("@ai-sdk/cerebras")
           item.headers = { ...item.headers, Existing: "1" }
         })
       })
@@ -71,8 +70,7 @@ describe("CerebrasPlugin", () => {
             ModelV2.ID.make("llama-4-scout-17b-16e-instruct"),
           ),
           modelID: ModelV2.ID.make("llama-4-scout-17b-16e-instruct"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/cerebras",
         options: { name: "custom-cerebras", apiKey: "test" },
@@ -95,8 +93,7 @@ describe("CerebrasPlugin", () => {
             ModelV2.ID.make("llama-4-scout-17b-16e-instruct"),
           ),
           modelID: ModelV2.ID.make("llama-4-scout-17b-16e-instruct"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/cerebras",
         options: { name: "configured-cerebras", apiKey: "test" },
@@ -118,8 +115,7 @@ describe("CerebrasPlugin", () => {
             ModelV2.ID.make("llama-4-scout-17b-16e-instruct"),
           ),
           modelID: ModelV2.ID.make("llama-4-scout-17b-16e-instruct"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/groq",
         options: { name: "custom-cerebras", apiKey: "test" },
diff --git a/packages/core/test/plugin/provider-cloudflare-ai-gateway.test.ts b/packages/core/test/plugin/provider-cloudflare-ai-gateway.test.ts
index 7259f7ed56..cbd2b95c9e 100644
--- a/packages/core/test/plugin/provider-cloudflare-ai-gateway.test.ts
+++ b/packages/core/test/plugin/provider-cloudflare-ai-gateway.test.ts
@@ -119,8 +119,7 @@ describe("CloudflareAIGatewayPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
               modelID: ModelV2.ID.make("openai/gpt-5"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "ai-gateway-provider",
             options: { name: "cloudflare-ai-gateway" },
@@ -142,8 +141,7 @@ describe("CloudflareAIGatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
             modelID: ModelV2.ID.make("openai/gpt-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "ai-gateway-provider",
           options: {
@@ -188,8 +186,7 @@ describe("CloudflareAIGatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
             modelID: ModelV2.ID.make("openai/gpt-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "ai-gateway-provider",
           options: {
@@ -219,8 +216,7 @@ describe("CloudflareAIGatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
             modelID: ModelV2.ID.make("openai/gpt-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "ai-gateway-provider",
           options: {
@@ -258,8 +254,7 @@ describe("CloudflareAIGatewayPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
               modelID: ModelV2.ID.make("openai/gpt-5"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "ai-gateway-provider",
             options: {
@@ -291,8 +286,7 @@ describe("CloudflareAIGatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
             modelID: ModelV2.ID.make("openai/gpt-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "ai-gateway-provider",
           options: { name: "cloudflare-ai-gateway" },
@@ -315,8 +309,7 @@ describe("CloudflareAIGatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
             modelID: ModelV2.ID.make("openai/gpt-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "ai-gateway-provider",
           options: { name: "cloudflare-ai-gateway" },
@@ -340,8 +333,7 @@ describe("CloudflareAIGatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
             modelID: ModelV2.ID.make("openai/gpt-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "ai-gateway-provider",
           options: { name: "cloudflare-ai-gateway" },
@@ -371,8 +363,7 @@ describe("CloudflareAIGatewayPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
               modelID: ModelV2.ID.make("openai/gpt-5"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "ai-gateway-provider",
             options: { name: "cloudflare-ai-gateway", baseURL: "https://proxy.example/v1" },
@@ -399,8 +390,7 @@ describe("CloudflareAIGatewayPlugin", () => {
               ModelV2.ID.make("anthropic/claude-sonnet-4-5"),
             ),
             modelID: ModelV2.ID.make("anthropic/claude-sonnet-4-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "ai-gateway-provider",
           options: { name: "cloudflare-ai-gateway" },
@@ -429,8 +419,7 @@ describe("CloudflareAIGatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-ai-gateway"), ModelV2.ID.make("openai/gpt-5")),
             modelID: ModelV2.ID.make("openai/gpt-5"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/openai-compatible",
           options: { name: "cloudflare-ai-gateway" },
diff --git a/packages/core/test/plugin/provider-cloudflare-workers-ai.test.ts b/packages/core/test/plugin/provider-cloudflare-workers-ai.test.ts
index 2eeb89caf2..d67b8d91cc 100644
--- a/packages/core/test/plugin/provider-cloudflare-workers-ai.test.ts
+++ b/packages/core/test/plugin/provider-cloudflare-workers-ai.test.ts
@@ -87,8 +87,7 @@ describe("CloudflareWorkersAIPlugin", () => {
         const catalog = yield* Catalog.Service
         yield* catalog.transform((catalog) =>
           catalog.provider.update(ProviderV2.ID.make("cloudflare-workers-ai"), (provider) => {
-            provider.aisdk = true
-            provider.package = "test-provider"
+            provider.package = ProviderV2.aisdk("test-provider")
           }),
         )
         yield* addPlugin()
@@ -97,7 +96,6 @@ describe("CloudflareWorkersAIPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
             modelID: ModelV2.ID.make("@cf/model"),
-            aisdk: provider.aisdk,
             package: provider.package,
             settings: provider.settings,
           }),
@@ -105,8 +103,7 @@ describe("CloudflareWorkersAIPlugin", () => {
           options: { name: "cloudflare-workers-ai", headers: { custom: "header" } },
         })
         expect(provider).toMatchObject({
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
           settings: { baseURL: "https://api.cloudflare.com/client/v4/accounts/acct/ai/v1" },
         })
         expect(sdk.sdk).toBeDefined()
@@ -120,15 +117,13 @@ describe("CloudflareWorkersAIPlugin", () => {
         const catalog = yield* Catalog.Service
         yield* catalog.transform((catalog) =>
           catalog.provider.update(ProviderV2.ID.make("cloudflare-workers-ai"), (provider) => {
-            provider.aisdk = true
-            provider.package = "test-provider"
+            provider.package = ProviderV2.aisdk("test-provider")
             provider.settings = { ...provider.settings, baseURL: "https://proxy.example/v1" }
           }),
         )
         yield* addPlugin()
         expect(required(yield* catalog.provider.get(ProviderV2.ID.make("cloudflare-workers-ai")))).toMatchObject({
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
           settings: { baseURL: "https://proxy.example/v1" },
         })
       }),
@@ -145,8 +140,7 @@ describe("CloudflareWorkersAIPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
             modelID: ModelV2.ID.make("@cf/model"),
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: { baseURL: "https://proxy.example/v1" },
           }),
           package: "@ai-sdk/openai-compatible",
@@ -163,15 +157,13 @@ describe("CloudflareWorkersAIPlugin", () => {
         const catalog = yield* Catalog.Service
         yield* catalog.transform((catalog) =>
           catalog.provider.update(ProviderV2.ID.make("cloudflare-workers-ai"), (provider) => {
-            provider.aisdk = true
-            provider.package = "test-provider"
+            provider.package = ProviderV2.aisdk("test-provider")
             provider.settings = { ...provider.settings, accountId: "configured-acct" }
           }),
         )
         yield* addPlugin()
         expect(required(yield* catalog.provider.get(ProviderV2.ID.make("cloudflare-workers-ai")))).toMatchObject({
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
           settings: { baseURL: "https://api.cloudflare.com/client/v4/accounts/env-acct/ai/v1" },
         })
       }),
@@ -188,8 +180,7 @@ describe("CloudflareWorkersAIPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
             modelID: ModelV2.ID.make("@cf/model"),
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: { baseURL: "https://proxy.example/v1" },
           }),
           package: "@ai-sdk/openai-compatible",
@@ -218,8 +209,7 @@ describe("CloudflareWorkersAIPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
             modelID: ModelV2.ID.make("@cf/model"),
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: { baseURL: "https://api.cloudflare.com/client/v4/accounts/${CLOUDFLARE_ACCOUNT_ID}/ai/v1" },
           }),
           package: "@ai-sdk/openai-compatible",
@@ -245,8 +235,7 @@ describe("CloudflareWorkersAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("@cf/api-model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -266,8 +255,7 @@ describe("CloudflareWorkersAIPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
             modelID: ModelV2.ID.make("@cf/model"),
-            aisdk: true,
-            package: "@ai-sdk/anthropic",
+            package: "aisdk:@ai-sdk/anthropic",
             settings: { baseURL: "https://proxy.example/v1" },
           }),
           package: "@ai-sdk/anthropic",
diff --git a/packages/core/test/plugin/provider-cohere.test.ts b/packages/core/test/plugin/provider-cohere.test.ts
index fea89915bf..a4109f74bd 100644
--- a/packages/core/test/plugin/provider-cohere.test.ts
+++ b/packages/core/test/plugin/provider-cohere.test.ts
@@ -57,8 +57,7 @@ describe("CoherePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("cohere"), ModelV2.ID.make("command")),
           modelID: ModelV2.ID.make("command"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "cohere" },
@@ -69,8 +68,7 @@ describe("CoherePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("cohere"), ModelV2.ID.make("command")),
           modelID: ModelV2.ID.make("command"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/cohere",
         options: { name: "cohere" },
@@ -88,8 +86,7 @@ describe("CoherePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-cohere"), ModelV2.ID.make("command-r-plus")),
           modelID: ModelV2.ID.make("command-r-plus"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/cohere",
         options: { name: "custom-cohere", apiKey: "test", baseURL: "https://cohere.example" },
@@ -115,8 +112,7 @@ describe("CoherePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("cohere"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("command-r-plus"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk,
         options: {},
diff --git a/packages/core/test/plugin/provider-deepinfra.test.ts b/packages/core/test/plugin/provider-deepinfra.test.ts
index 6d1f74157d..14c41e550d 100644
--- a/packages/core/test/plugin/provider-deepinfra.test.ts
+++ b/packages/core/test/plugin/provider-deepinfra.test.ts
@@ -49,8 +49,7 @@ describe("DeepInfraPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("deepinfra"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "@ai-sdk/deepinfra",
+          package: "aisdk:@ai-sdk/deepinfra",
         }),
         package: "@ai-sdk/deepinfra",
         options: { name: "deepinfra" },
@@ -69,8 +68,7 @@ describe("DeepInfraPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-deepinfra"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "@ai-sdk/deepinfra",
+          package: "aisdk:@ai-sdk/deepinfra",
         }),
         package: "@ai-sdk/deepinfra",
         options: { name: "custom-deepinfra", apiKey: "test" },
@@ -90,8 +88,7 @@ describe("DeepInfraPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("deepinfra"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "@ai-sdk/deepinfra",
+          package: "aisdk:@ai-sdk/deepinfra",
         }),
         package: "@ai-sdk/deepinfra",
         options: { name: "deepinfra", apiKey: "test" },
@@ -118,8 +115,7 @@ describe("DeepInfraPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("deepinfra"), ModelV2.ID.make("model")),
               modelID: ModelV2.ID.make("model"),
-              aisdk: true,
-              package: "@ai-sdk/deepinfra",
+              package: "aisdk:@ai-sdk/deepinfra",
             }),
             package: item,
             options: { name: "deepinfra" },
@@ -131,8 +127,7 @@ describe("DeepInfraPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("deepinfra"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "@ai-sdk/deepinfra",
+          package: "aisdk:@ai-sdk/deepinfra",
         }),
         package: "@ai-sdk/deepinfra",
         options: { name: "deepinfra" },
@@ -152,8 +147,7 @@ describe("DeepInfraPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("deepinfra"), ModelV2.ID.make("meta-llama/Llama-3.3-70B-Instruct")),
           modelID: ModelV2.ID.make("meta-llama/Llama-3.3-70B-Instruct"),
-          aisdk: true,
-          package: "@ai-sdk/deepinfra",
+          package: "aisdk:@ai-sdk/deepinfra",
         }),
         package: "@ai-sdk/deepinfra",
         options: { name: "deepinfra" },
diff --git a/packages/core/test/plugin/provider-dynamic.test.ts b/packages/core/test/plugin/provider-dynamic.test.ts
index 68509bce9a..86e8864fb9 100644
--- a/packages/core/test/plugin/provider-dynamic.test.ts
+++ b/packages/core/test/plugin/provider-dynamic.test.ts
@@ -54,8 +54,7 @@ describe("DynamicProviderPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom"), ModelV2.ID.make("test-model")),
           modelID: ModelV2.ID.make("test-model"),
-          aisdk: true,
-          package: fixtureProvider,
+          package: ProviderV2.aisdk(fixtureProvider),
         }),
         package: fixtureProvider,
         options: { name: "custom", marker: "dynamic" },
@@ -74,8 +73,7 @@ describe("DynamicProviderPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom"), ModelV2.ID.make("test-model")),
           modelID: ModelV2.ID.make("test-model"),
-          aisdk: true,
-          package: fixtureProvider,
+          package: ProviderV2.aisdk(fixtureProvider),
         }),
         package: fixtureProvider,
         options: { name: "custom", marker: "dynamic" },
@@ -93,8 +91,7 @@ describe("DynamicProviderPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-provider"), ModelV2.ID.make("test-model")),
           modelID: ModelV2.ID.make("test-model"),
-          aisdk: true,
-          package: fixtureProvider,
+          package: ProviderV2.aisdk(fixtureProvider),
         }),
         package: fixtureProvider,
         options: { name: "custom-provider", marker: "dynamic" },
@@ -111,8 +108,7 @@ describe("DynamicProviderPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("npm-provider"), ModelV2.ID.make("test-model")),
           modelID: ModelV2.ID.make("test-model"),
-          aisdk: true,
-          package: "fixture-provider",
+          package: "aisdk:fixture-provider",
         }),
         package: "fixture-provider",
         options: { name: "npm-provider", marker: "npm" },
@@ -130,8 +126,7 @@ describe("DynamicProviderPlugin", () => {
           ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("missing-entrypoint"), ModelV2.ID.make("alias")),
             modelID: ModelV2.ID.make("alias"),
-            aisdk: true,
-            package: "fixture-provider",
+            package: "aisdk:fixture-provider",
           }),
         )
         .pipe(Effect.exit)
@@ -149,8 +144,7 @@ describe("DynamicProviderPlugin", () => {
           ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("bad-import"), ModelV2.ID.make("alias")),
             modelID: ModelV2.ID.make("alias"),
-            aisdk: true,
-            package: "file:///missing/provider-factory.js",
+            package: "aisdk:file:///missing/provider-factory.js",
           }),
         )
         .pipe(Effect.exit)
@@ -170,8 +164,7 @@ describe("DynamicProviderPlugin", () => {
           ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("missing-factory"), ModelV2.ID.make("alias")),
             modelID: ModelV2.ID.make("alias"),
-            aisdk: true,
-            package: "fixture-provider",
+            package: "aisdk:fixture-provider",
           }),
         )
         .pipe(Effect.exit)
@@ -189,8 +182,7 @@ describe("DynamicProviderPlugin", () => {
         ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("test-model-api"),
-          aisdk: true,
-          package: fixtureProvider,
+          package: ProviderV2.aisdk(fixtureProvider),
         }),
       )
       expect(language).toMatchObject({ modelID: "test-model-api", options: { name: "custom" } })
diff --git a/packages/core/test/plugin/provider-gateway.test.ts b/packages/core/test/plugin/provider-gateway.test.ts
index 2c49e1a026..722bbde9b6 100644
--- a/packages/core/test/plugin/provider-gateway.test.ts
+++ b/packages/core/test/plugin/provider-gateway.test.ts
@@ -46,8 +46,7 @@ describe("GatewayPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("gateway"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/gateway",
         options: { name: "gateway" },
@@ -68,8 +67,7 @@ describe("GatewayPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("vercel"), ModelV2.ID.make("anthropic/claude-sonnet-4")),
           modelID: ModelV2.ID.make("anthropic/claude-sonnet-4"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/gateway",
         options: { name: "vercel", apiKey: "test-key" },
@@ -92,8 +90,7 @@ describe("GatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("vercel"), ModelV2.ID.make(modelID)),
             modelID: ModelV2.ID.make(modelID),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/vercel",
           options: { name: "vercel" },
@@ -104,8 +101,7 @@ describe("GatewayPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("vercel"), ModelV2.ID.make(modelID)),
             modelID: ModelV2.ID.make(modelID),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/gateway",
           options: { name: "vercel" },
diff --git a/packages/core/test/plugin/provider-github-copilot.test.ts b/packages/core/test/plugin/provider-github-copilot.test.ts
index 44bea74ea4..4c5a3b1160 100644
--- a/packages/core/test/plugin/provider-github-copilot.test.ts
+++ b/packages/core/test/plugin/provider-github-copilot.test.ts
@@ -48,8 +48,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("gpt-5")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "github-copilot" },
@@ -58,8 +57,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("gpt-5")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/github-copilot",
         options: { name: "github-copilot" },
@@ -79,8 +77,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("claude-sonnet-4")),
           modelID: ModelV2.ID.make("claude-sonnet-4"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: {},
@@ -99,8 +96,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("claude-sonnet-4"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: {},
@@ -119,8 +115,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("gpt-5")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -129,8 +124,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("gpt-5.1-codex")),
           modelID: ModelV2.ID.make("gpt-5.1-codex"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -139,8 +133,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("gpt-4o")),
           modelID: ModelV2.ID.make("gpt-4o"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -149,8 +142,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("gpt-5-mini")),
           modelID: ModelV2.ID.make("gpt-5-mini"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -159,8 +151,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("gpt-5-mini-2025-08-07")),
           modelID: ModelV2.ID.make("gpt-5-mini-2025-08-07"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -185,8 +176,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("default")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -195,8 +185,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("small")),
           modelID: ModelV2.ID.make("gpt-5-mini"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -205,8 +194,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("github-copilot"), ModelV2.ID.make("sonnet")),
           modelID: ModelV2.ID.make("claude-sonnet-4"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -255,8 +243,7 @@ describe("GithubCopilotPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("openai"), ModelV2.ID.make("gpt-5")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
diff --git a/packages/core/test/plugin/provider-gitlab.test.ts b/packages/core/test/plugin/provider-gitlab.test.ts
index 6c72c65301..ae66a61aa8 100644
--- a/packages/core/test/plugin/provider-gitlab.test.ts
+++ b/packages/core/test/plugin/provider-gitlab.test.ts
@@ -71,8 +71,7 @@ describe("GitLabPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("claude")),
               modelID: ModelV2.ID.make("claude"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "gitlab-ai-provider",
             options: { name: "gitlab" },
@@ -110,8 +109,7 @@ describe("GitLabPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("claude")),
               modelID: ModelV2.ID.make("claude"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "gitlab-ai-provider",
             options: { name: "gitlab" },
@@ -137,8 +135,7 @@ describe("GitLabPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("claude")),
               modelID: ModelV2.ID.make("claude"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "gitlab-ai-provider",
             options: {
@@ -180,8 +177,7 @@ describe("GitLabPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("claude")),
           modelID: ModelV2.ID.make("claude"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai",
         options: { name: "gitlab" },
@@ -201,8 +197,7 @@ describe("GitLabPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("duo-workflow-custom")),
           modelID: ModelV2.ID.make("duo-workflow-custom"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
           headers: {},
           settings: { workflowRef: "ref", workflowDefinition: "definition" },
         }),
@@ -236,8 +231,7 @@ describe("GitLabPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("duo-workflow-exact")),
           modelID: ModelV2.ID.make("duo-workflow-exact"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: {
           workflowChat: (id: string, options: unknown) => {
@@ -265,8 +259,7 @@ describe("GitLabPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("duo-workflow-custom")),
           modelID: ModelV2.ID.make("duo-workflow-custom"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
           headers: {},
           settings: { featureFlags: { request_flag: true } },
         }),
@@ -293,8 +286,7 @@ describe("GitLabPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("gitlab"), ModelV2.ID.make("claude")),
           modelID: ModelV2.ID.make("claude"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
           headers: { h: "v" },
           settings: {},
         }),
diff --git a/packages/core/test/plugin/provider-google-vertex-anthropic.test.ts b/packages/core/test/plugin/provider-google-vertex-anthropic.test.ts
index 8afb38b1f8..090abb945c 100644
--- a/packages/core/test/plugin/provider-google-vertex-anthropic.test.ts
+++ b/packages/core/test/plugin/provider-google-vertex-anthropic.test.ts
@@ -64,8 +64,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
           const catalog = yield* Catalog.Service
           yield* catalog.transform((catalog) =>
             catalog.provider.update(ProviderV2.ID.make("google-vertex-anthropic"), (provider) => {
-              provider.aisdk = true
-              provider.package = "@ai-sdk/google-vertex/anthropic"
+              provider.package = ProviderV2.aisdk("@ai-sdk/google-vertex/anthropic")
             }),
           )
           yield* addPlugin(GoogleVertexAnthropicPlugin)
@@ -85,8 +84,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
         const catalog = yield* Catalog.Service
         yield* catalog.transform((catalog) =>
           catalog.provider.update(ProviderV2.ID.make("google-vertex-anthropic"), (provider) => {
-            provider.aisdk = true
-            provider.package = "@ai-sdk/google-vertex/anthropic"
+            provider.package = ProviderV2.aisdk("@ai-sdk/google-vertex/anthropic")
             provider.settings = { ...provider.settings, project: "configured-project", location: "configured-location" }
           }),
         )
@@ -123,8 +121,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
                 ModelV2.ID.make("claude-sonnet-4-5"),
               ),
               modelID: ModelV2.ID.make("claude-sonnet-4-5"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "@ai-sdk/google-vertex/anthropic",
             options: { name: "google-vertex-anthropic" },
@@ -151,8 +148,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
                 ModelV2.ID.make("claude-sonnet-4-5"),
               ),
               modelID: ModelV2.ID.make("claude-sonnet-4-5"),
-              aisdk: true,
-              package: "test-provider",
+              package: "aisdk:test-provider",
             }),
             package: "@ai-sdk/google-vertex/anthropic",
             options: { name: "google-vertex-anthropic" },
@@ -173,8 +169,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make("claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/google-vertex/anthropic",
         options: { name: "google-vertex", project: "project", location: "eu" },
@@ -194,8 +189,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make("claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/google-vertex/anthropic",
         options: { name: "google-vertex", project: "project", location: "eu", baseURL: "https://proxy.example/v1" },
@@ -214,8 +208,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make(" claude-sonnet-4-5 ")),
           modelID: ModelV2.ID.make(" claude-sonnet-4-5 "),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/google-vertex/anthropic",
         options: { name: "google-vertex", project: "project", location: "us" },
@@ -224,8 +217,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make(" claude-sonnet-4-5 ")),
           modelID: ModelV2.ID.make(" claude-sonnet-4-5 "),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: sdkResult.sdk,
         options: {},
@@ -248,8 +240,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex-anthropic"), ModelV2.ID.make(" claude-sonnet-4-5 ")),
           modelID: ModelV2.ID.make(" claude-sonnet-4-5 "),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: selector(calls) },
         options: {},
@@ -268,8 +259,7 @@ describe("GoogleVertexAnthropicPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make("claude-sonnet-4-5")),
           modelID: ModelV2.ID.make("claude-sonnet-4-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: selector(calls) },
         options: {},
diff --git a/packages/core/test/plugin/provider-google-vertex.test.ts b/packages/core/test/plugin/provider-google-vertex.test.ts
index 026bcd0282..fc7f398d75 100644
--- a/packages/core/test/plugin/provider-google-vertex.test.ts
+++ b/packages/core/test/plugin/provider-google-vertex.test.ts
@@ -92,8 +92,7 @@ describe("GoogleVertexPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) =>
         catalog.provider.update(ProviderV2.ID.opencode, (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://opencode.ai/zen/v1" }
         }),
       )
@@ -119,8 +118,7 @@ describe("GoogleVertexPlugin", () => {
           const catalog = yield* Catalog.Service
           yield* catalog.transform((catalog) =>
             catalog.provider.update(ProviderV2.ID.make("google-vertex"), (provider) => {
-              provider.aisdk = true
-              provider.package = "@ai-sdk/openai-compatible"
+              provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
               provider.settings = {
                 ...provider.settings,
                 baseURL:
@@ -133,8 +131,7 @@ describe("GoogleVertexPlugin", () => {
           expect(provider.settings?.project).toBe("google-cloud-project")
           expect(provider.settings?.location).toBe("google-vertex-location")
           expect(provider).toMatchObject({
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: {
               baseURL:
                 "https://google-vertex-location-aiplatform.googleapis.com/v1/projects/google-cloud-project/locations/google-vertex-location",
@@ -163,8 +160,7 @@ describe("GoogleVertexPlugin", () => {
           const catalog = yield* Catalog.Service
           yield* catalog.transform((catalog) =>
             catalog.provider.update(ProviderV2.ID.make("google-vertex"), (provider) => {
-              provider.aisdk = true
-              provider.package = "@ai-sdk/openai-compatible"
+              provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
               provider.settings = {
                 ...provider.settings,
                 baseURL:
@@ -178,8 +174,7 @@ describe("GoogleVertexPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make("gemini")),
               modelID: ModelV2.ID.make("gemini"),
-              aisdk: true,
-              package: "@ai-sdk/google-vertex",
+              package: "aisdk:@ai-sdk/google-vertex",
             }),
             package: "@ai-sdk/google-vertex",
             options: { name: "google-vertex" },
@@ -187,8 +182,7 @@ describe("GoogleVertexPlugin", () => {
 
           expect(provider.settings?.project).toBe("vertex-project")
           expect(provider).toMatchObject({
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: {
               baseURL:
                 "https://europe-west4-aiplatform.googleapis.com/v1/projects/vertex-project/locations/europe-west4",
@@ -215,8 +209,7 @@ describe("GoogleVertexPlugin", () => {
           const catalog = yield* Catalog.Service
           yield* catalog.transform((catalog) =>
             catalog.provider.update(ProviderV2.ID.make("google-vertex"), (provider) => {
-              provider.aisdk = true
-              provider.package = "@ai-sdk/openai-compatible"
+              provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
               provider.settings = {
                 ...provider.settings,
                 baseURL:
@@ -230,8 +223,7 @@ describe("GoogleVertexPlugin", () => {
           expect(provider.settings?.project).toBe("config-project")
           expect(provider.settings?.location).toBe("global")
           expect(provider).toMatchObject({
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: { baseURL: "https://aiplatform.googleapis.com/v1/projects/config-project/locations/global" },
           })
         }),
@@ -243,8 +235,7 @@ describe("GoogleVertexPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) =>
         catalog.provider.update(ProviderV2.ID.make("google-vertex"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = {
             ...provider.settings,
             baseURL:
@@ -256,8 +247,7 @@ describe("GoogleVertexPlugin", () => {
       yield* addPlugin()
       const provider = required(yield* catalog.provider.get(ProviderV2.ID.make("google-vertex")))
       expect(provider).toMatchObject({
-        aisdk: true,
-        package: "@ai-sdk/openai-compatible",
+        package: "aisdk:@ai-sdk/openai-compatible",
         settings: { baseURL: "https://eu-aiplatform.googleapis.com/v1/projects/config-project/locations/eu" },
       })
     }),
@@ -278,8 +268,7 @@ describe("GoogleVertexPlugin", () => {
           const catalog = yield* Catalog.Service
           yield* catalog.transform((catalog) =>
             catalog.provider.update(ProviderV2.ID.make("google-vertex"), (provider) => {
-              provider.aisdk = true
-              provider.package = "@ai-sdk/google-vertex"
+              provider.package = ProviderV2.aisdk("@ai-sdk/google-vertex")
               provider.settings = { ...provider.settings, project: "config-project" }
             }),
           )
@@ -307,8 +296,7 @@ describe("GoogleVertexPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make("gemini")),
               modelID: ModelV2.ID.make("gemini"),
-              aisdk: true,
-              package: "@ai-sdk/google-vertex",
+              package: "aisdk:@ai-sdk/google-vertex",
             }),
             package: "@ai-sdk/google-vertex",
             options: { name: "google-vertex" },
@@ -353,8 +341,7 @@ describe("GoogleVertexPlugin", () => {
             model: ModelV2.Info.make({
               ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make("gemini")),
               modelID: ModelV2.ID.make("gemini"),
-              aisdk: true,
-              package: "@ai-sdk/openai-compatible",
+              package: "aisdk:@ai-sdk/openai-compatible",
             }),
             package: "@ai-sdk/openai-compatible",
             options: { name: "google-vertex" },
@@ -382,8 +369,7 @@ describe("GoogleVertexPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google-vertex"), ModelV2.ID.make(" gemini-2.5-pro ")),
           modelID: ModelV2.ID.make(" gemini-2.5-pro "),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: {},
diff --git a/packages/core/test/plugin/provider-google.test.ts b/packages/core/test/plugin/provider-google.test.ts
index f2022d31d1..fd9a4c90dd 100644
--- a/packages/core/test/plugin/provider-google.test.ts
+++ b/packages/core/test/plugin/provider-google.test.ts
@@ -28,8 +28,7 @@ describe("GooglePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-google"), ModelV2.ID.make("gemini")),
           modelID: ModelV2.ID.make("gemini"),
-          aisdk: true,
-          package: "@ai-sdk/google",
+          package: "aisdk:@ai-sdk/google",
         }),
         package: "@ai-sdk/google",
         options: { name: "custom-google", apiKey: "test" },
@@ -48,8 +47,7 @@ describe("GooglePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("google"), ModelV2.ID.make("gemini")),
           modelID: ModelV2.ID.make("gemini"),
-          aisdk: true,
-          package: "@ai-sdk/google",
+          package: "aisdk:@ai-sdk/google",
         }),
         package: "@ai-sdk/google-vertex",
         options: { name: "google" },
@@ -67,8 +65,7 @@ describe("GooglePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-google"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("gemini-api"),
-          aisdk: true,
-          package: "@ai-sdk/google",
+          package: "aisdk:@ai-sdk/google",
         }),
         package: "@ai-sdk/google",
         options: { name: "custom-google", apiKey: "test" },
diff --git a/packages/core/test/plugin/provider-groq.test.ts b/packages/core/test/plugin/provider-groq.test.ts
index 2e30264352..b8900384b7 100644
--- a/packages/core/test/plugin/provider-groq.test.ts
+++ b/packages/core/test/plugin/provider-groq.test.ts
@@ -29,8 +29,7 @@ describe("GroqPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("groq"), ModelV2.ID.make("llama")),
           modelID: ModelV2.ID.make("llama"),
-          aisdk: true,
-          package: "@ai-sdk/groq",
+          package: "aisdk:@ai-sdk/groq",
         }),
         package: "@ai-sdk/groq",
         options: { name: "groq" },
@@ -48,8 +47,7 @@ describe("GroqPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("groq"), ModelV2.ID.make("llama")),
           modelID: ModelV2.ID.make("llama"),
-          aisdk: true,
-          package: "@ai-sdk/groq",
+          package: "aisdk:@ai-sdk/groq",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "groq" },
@@ -67,8 +65,7 @@ describe("GroqPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("groq"), ModelV2.ID.make("llama")),
           modelID: ModelV2.ID.make("llama"),
-          aisdk: true,
-          package: "@ai-sdk/groq",
+          package: "aisdk:@ai-sdk/groq",
         }),
         package: "@ai-sdk/groq/compat",
         options: { name: "groq" },
@@ -86,8 +83,7 @@ describe("GroqPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-groq"), ModelV2.ID.make("llama")),
           modelID: ModelV2.ID.make("llama"),
-          aisdk: true,
-          package: "@ai-sdk/groq",
+          package: "aisdk:@ai-sdk/groq",
         }),
         package: "@ai-sdk/groq",
         options: { name: "custom-groq", apiKey: "test" },
@@ -113,8 +109,7 @@ describe("GroqPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("groq"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("llama-api"),
-          aisdk: true,
-          package: "@ai-sdk/groq",
+          package: "aisdk:@ai-sdk/groq",
         }),
         sdk,
         options: { name: "groq", apiKey: "test" },
diff --git a/packages/core/test/plugin/provider-kilo.test.ts b/packages/core/test/plugin/provider-kilo.test.ts
index 7ad6b00382..8fc1287222 100644
--- a/packages/core/test/plugin/provider-kilo.test.ts
+++ b/packages/core/test/plugin/provider-kilo.test.ts
@@ -27,8 +27,7 @@ describe("KiloPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("kilo"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://api.kilo.ai/api/gateway" }
           provider.headers = { Existing: "value" }
         })
@@ -49,8 +48,7 @@ describe("KiloPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("kilo"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://api.kilo.ai/api/gateway" }
         })
       })
@@ -71,13 +69,11 @@ describe("KiloPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("kilo"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://api.kilo.ai/api/gateway" }
         })
         catalog.provider.update(ProviderV2.ID.make("custom-kilo"), (provider) => {
-          provider.aisdk = true
-          provider.package = "kilo"
+          provider.package = ProviderV2.aisdk("kilo")
         })
       })
       yield* addPlugin()
diff --git a/packages/core/test/plugin/provider-llmgateway.test.ts b/packages/core/test/plugin/provider-llmgateway.test.ts
index f0eb026aca..b3d451a473 100644
--- a/packages/core/test/plugin/provider-llmgateway.test.ts
+++ b/packages/core/test/plugin/provider-llmgateway.test.ts
@@ -34,8 +34,7 @@ describe("LLMGatewayPlugin", () => {
       })
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("llmgateway"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://api.llmgateway.io/v1" }
           provider.headers = { Existing: "value" }
         })
@@ -62,8 +61,7 @@ describe("LLMGatewayPlugin", () => {
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("llmgateway"), (provider) => {
           provider.disabled = true
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://api.llmgateway.io/v1" }
         })
       })
diff --git a/packages/core/test/plugin/provider-mistral.test.ts b/packages/core/test/plugin/provider-mistral.test.ts
index 5e549e3ec8..182873482c 100644
--- a/packages/core/test/plugin/provider-mistral.test.ts
+++ b/packages/core/test/plugin/provider-mistral.test.ts
@@ -29,8 +29,7 @@ describe("MistralPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("mistral"), ModelV2.ID.make("mistral-large")),
           modelID: ModelV2.ID.make("mistral-large"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/mistral",
         options: { name: "mistral" },
@@ -48,8 +47,7 @@ describe("MistralPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("mistral"), ModelV2.ID.make("mistral-large")),
           modelID: ModelV2.ID.make("mistral-large"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "mistral" },
@@ -73,8 +71,7 @@ describe("MistralPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("mistral"), ModelV2.ID.make("mistral-large")),
           modelID: ModelV2.ID.make("mistral-large"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/mistral",
         options: { name: "mistral" },
@@ -99,8 +96,7 @@ describe("MistralPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-mistral"), ModelV2.ID.make("mistral-large")),
           modelID: ModelV2.ID.make("mistral-large"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/mistral",
         options: { name: "custom-mistral" },
@@ -125,8 +121,7 @@ describe("MistralPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("mistral"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("mistral-large"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk,
         options: {},
diff --git a/packages/core/test/plugin/provider-nvidia.test.ts b/packages/core/test/plugin/provider-nvidia.test.ts
index b1f051ab9d..b5984d6237 100644
--- a/packages/core/test/plugin/provider-nvidia.test.ts
+++ b/packages/core/test/plugin/provider-nvidia.test.ts
@@ -27,8 +27,7 @@ describe("NvidiaPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("nvidia"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://integrate.api.nvidia.com/v1" }
           provider.headers = { Existing: "value" }
         })
@@ -50,8 +49,7 @@ describe("NvidiaPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("nvidia"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://integrate.api.nvidia.com/v1" }
         })
       })
@@ -70,8 +68,7 @@ describe("NvidiaPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("nvidia"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://integrate.api.nvidia.com/v1" }
           provider.headers = { "X-BILLING-INVOKE-ORIGIN": "CustomOrigin" }
         })
diff --git a/packages/core/test/plugin/provider-openai-compatible.test.ts b/packages/core/test/plugin/provider-openai-compatible.test.ts
index ac4e782cc6..a954af9f00 100644
--- a/packages/core/test/plugin/provider-openai-compatible.test.ts
+++ b/packages/core/test/plugin/provider-openai-compatible.test.ts
@@ -28,8 +28,7 @@ describe("OpenAICompatiblePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "custom" },
@@ -38,8 +37,7 @@ describe("OpenAICompatiblePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "custom", includeUsage: false },
@@ -58,8 +56,7 @@ describe("OpenAICompatiblePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "file:///tmp/@ai-sdk/openai-compatible-provider.js",
         options: { name: "custom" },
@@ -83,8 +80,7 @@ describe("OpenAICompatiblePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-provider"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "custom-provider", baseURL: "https://example.com/v1" },
@@ -105,8 +101,7 @@ describe("OpenAICompatiblePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "cloudflare-workers-ai" },
diff --git a/packages/core/test/plugin/provider-openai.test.ts b/packages/core/test/plugin/provider-openai.test.ts
index c9866ea879..daf48310fd 100644
--- a/packages/core/test/plugin/provider-openai.test.ts
+++ b/packages/core/test/plugin/provider-openai.test.ts
@@ -68,8 +68,7 @@ describe("OpenAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-openai"), ModelV2.ID.make("gpt-5")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai",
         options: { name: "custom-openai", apiKey: "test" },
@@ -87,8 +86,7 @@ describe("OpenAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.openai, ModelV2.ID.make("gpt-5")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "openai" },
@@ -107,8 +105,7 @@ describe("OpenAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.openai, ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -128,8 +125,7 @@ describe("OpenAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.anthropic, ModelV2.ID.make("gpt-5")),
           modelID: ModelV2.ID.make("gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -145,11 +141,10 @@ describe("OpenAIPlugin", () => {
       yield* catalog.transform((catalog) => {
         const item = ProviderV2.Info.make({
           ...ProviderV2.Info.empty(ProviderV2.ID.openai),
-          aisdk: true,
-          package: "@ai-sdk/openai",
+          package: "aisdk:@ai-sdk/openai",
         })
         catalog.provider.update(item.id, (draft) => {
-          draft.aisdk = item.aisdk
+          draft.package = item.package
           draft.package = item.package
         })
         catalog.model.update(item.id, ModelV2.ID.make("gpt-5"), () => {})
@@ -169,11 +164,10 @@ describe("OpenAIPlugin", () => {
       yield* catalog.transform((catalog) => {
         const item = ProviderV2.Info.make({
           ...ProviderV2.Info.empty(ProviderV2.ID.make("custom-openai")),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         })
         catalog.provider.update(item.id, (draft) => {
-          draft.aisdk = item.aisdk
+          draft.package = item.package
           draft.package = item.package
         })
         catalog.model.update(item.id, ModelV2.ID.make("gpt-5-chat-latest"), () => {})
diff --git a/packages/core/test/plugin/provider-opencode.test.ts b/packages/core/test/plugin/provider-opencode.test.ts
index 3d8560b055..ebf7e6ff66 100644
--- a/packages/core/test/plugin/provider-opencode.test.ts
+++ b/packages/core/test/plugin/provider-opencode.test.ts
@@ -133,8 +133,7 @@ describe("OpencodePlugin", () => {
           expect(provider).toMatchObject({
             name: "Remote",
             integrationID: "opencode",
-            aisdk: true,
-            package: "@ai-sdk/openai-compatible",
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: { baseURL: `${server.url.origin}/v1` },
           })
           expect(provider.headers).toEqual({ "x-org-id": "org" })
@@ -178,14 +177,12 @@ describe("OpencodePlugin", () => {
         yield* catalog.transform((catalog) => {
           const provider = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.opencode),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           })
           const model = ModelV2.Info.make({
             ...ModelV2.Info.empty(provider.id, ModelV2.ID.make("paid")),
             modelID: ModelV2.ID.make("paid"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             cost: cost(1),
           })
           catalog.provider.update(provider.id, () => {})
@@ -207,14 +204,12 @@ describe("OpencodePlugin", () => {
         yield* catalog.transform((catalog) => {
           const provider = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.opencode),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           })
           const model = ModelV2.Info.make({
             ...ModelV2.Info.empty(provider.id, ModelV2.ID.make("free")),
             modelID: ModelV2.ID.make("free"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             cost: cost(0),
           })
           catalog.provider.update(provider.id, () => {})
@@ -236,14 +231,12 @@ describe("OpencodePlugin", () => {
         yield* catalog.transform((catalog) => {
           const provider = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.opencode),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           })
           const model = ModelV2.Info.make({
             ...ModelV2.Info.empty(provider.id, ModelV2.ID.make("output-only")),
             modelID: ModelV2.ID.make("output-only"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             cost: cost(0, 1),
           })
           catalog.provider.update(provider.id, () => {})
@@ -267,14 +260,12 @@ describe("OpencodePlugin", () => {
         yield* catalog.transform((catalog) => {
           const provider = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.opencode),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           })
           const model = ModelV2.Info.make({
             ...ModelV2.Info.empty(provider.id, ModelV2.ID.make("paid")),
             modelID: ModelV2.ID.make("paid"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             cost: cost(1),
           })
           catalog.provider.update(provider.id, () => {})
@@ -303,14 +294,12 @@ describe("OpencodePlugin", () => {
         yield* catalog.transform((catalog) => {
           const provider = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.opencode),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           })
           const model = ModelV2.Info.make({
             ...ModelV2.Info.empty(provider.id, ModelV2.ID.make("paid")),
             modelID: ModelV2.ID.make("paid"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             cost: cost(1),
           })
           catalog.provider.update(provider.id, () => {})
@@ -332,16 +321,14 @@ describe("OpencodePlugin", () => {
         yield* catalog.transform((catalog) => {
           const provider = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.opencode),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             headers: {},
             settings: { apiKey: "configured" },
           })
           const model = ModelV2.Info.make({
             ...ModelV2.Info.empty(provider.id, ModelV2.ID.make("paid")),
             modelID: ModelV2.ID.make("paid"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             cost: cost(1),
           })
           catalog.provider.update(provider.id, (draft) => {
@@ -366,14 +353,12 @@ describe("OpencodePlugin", () => {
         yield* catalog.transform((catalog) => {
           const provider = ProviderV2.Info.make({
             ...ProviderV2.Info.empty(ProviderV2.ID.openai),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           })
           const model = ModelV2.Info.make({
             ...ModelV2.Info.empty(provider.id, ModelV2.ID.make("paid")),
             modelID: ModelV2.ID.make("paid"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
             cost: cost(1),
           })
           catalog.provider.update(provider.id, () => {})
diff --git a/packages/core/test/plugin/provider-openrouter.test.ts b/packages/core/test/plugin/provider-openrouter.test.ts
index 5548b93597..7c3e140407 100644
--- a/packages/core/test/plugin/provider-openrouter.test.ts
+++ b/packages/core/test/plugin/provider-openrouter.test.ts
@@ -30,8 +30,7 @@ describe("OpenRouterPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.openrouter, (provider) => {
-          provider.aisdk = true
-          provider.package = "@openrouter/ai-sdk-provider"
+          provider.package = ProviderV2.aisdk("@openrouter/ai-sdk-provider")
           provider.headers = { Existing: "value" }
           provider.settings = {}
         })
@@ -58,8 +57,7 @@ describe("OpenRouterPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.openrouter, ModelV2.ID.make("openai/gpt-5")),
           modelID: ModelV2.ID.make("openai/gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "openrouter" },
@@ -70,8 +68,7 @@ describe("OpenRouterPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom"), ModelV2.ID.make("openai/gpt-5")),
           modelID: ModelV2.ID.make("openai/gpt-5"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@openrouter/ai-sdk-provider",
         options: { name: "custom" },
@@ -85,8 +82,7 @@ describe("OpenRouterPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.openrouter, (provider) => {
-          provider.aisdk = true
-          provider.package = "@openrouter/ai-sdk-provider"
+          provider.package = ProviderV2.aisdk("@openrouter/ai-sdk-provider")
         })
         catalog.provider.update(ProviderV2.ID.openai, () => {})
         catalog.model.update(ProviderV2.ID.openrouter, ModelV2.ID.make("openai/gpt-5-chat"), () => {})
diff --git a/packages/core/test/plugin/provider-perplexity.test.ts b/packages/core/test/plugin/provider-perplexity.test.ts
index 121f5ddd54..d66f5dd71c 100644
--- a/packages/core/test/plugin/provider-perplexity.test.ts
+++ b/packages/core/test/plugin/provider-perplexity.test.ts
@@ -42,8 +42,7 @@ describe("PerplexityPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("perplexity"), ModelV2.ID.make("sonar")),
           modelID: ModelV2.ID.make("sonar"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/perplexity",
         options: { name: "perplexity" },
@@ -61,8 +60,7 @@ describe("PerplexityPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("perplexity"), ModelV2.ID.make("sonar")),
           modelID: ModelV2.ID.make("sonar"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/perplexity-compatible",
         options: { name: "perplexity" },
@@ -80,8 +78,7 @@ describe("PerplexityPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("perplexity"), ModelV2.ID.make("sonar")),
           modelID: ModelV2.ID.make("sonar"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/perplexity",
         options: { name: "perplexity" },
@@ -99,8 +96,7 @@ describe("PerplexityPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-perplexity"), ModelV2.ID.make("sonar")),
           modelID: ModelV2.ID.make("sonar"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/perplexity",
         options: { name: "custom-perplexity" },
@@ -119,8 +115,7 @@ describe("PerplexityPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("perplexity"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("sonar"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
diff --git a/packages/core/test/plugin/provider-sap-ai-core.test.ts b/packages/core/test/plugin/provider-sap-ai-core.test.ts
index dd9bb4ec25..8822866be8 100644
--- a/packages/core/test/plugin/provider-sap-ai-core.test.ts
+++ b/packages/core/test/plugin/provider-sap-ai-core.test.ts
@@ -50,8 +50,7 @@ function model(providerID: string) {
   return ModelV2.Info.make({
     ...ModelV2.Info.empty(ProviderV2.ID.make(providerID), ModelV2.ID.make("sap-model")),
     modelID: ModelV2.ID.make("sap-model"),
-    aisdk: true,
-    package: fixtureProvider,
+    package: ProviderV2.aisdk(fixtureProvider),
   })
 }
 
diff --git a/packages/core/test/plugin/provider-snowflake-cortex.test.ts b/packages/core/test/plugin/provider-snowflake-cortex.test.ts
index 9fece1ecf6..f9be96b74b 100644
--- a/packages/core/test/plugin/provider-snowflake-cortex.test.ts
+++ b/packages/core/test/plugin/provider-snowflake-cortex.test.ts
@@ -58,8 +58,7 @@ describe("SnowflakeCortexPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("openai"), ModelV2.ID.make("gpt-4")),
           modelID: ModelV2.ID.make("gpt-4"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai",
         options: { name: "openai" },
@@ -78,8 +77,7 @@ describe("SnowflakeCortexPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("snowflake-cortex"), ModelV2.ID.make("claude-sonnet-4-6")),
             modelID: ModelV2.ID.make("claude-sonnet-4-6"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/openai-compatible",
           options: { name: "snowflake-cortex", baseURL: "https://test.snowflakecomputing.com/api/v2/cortex/v1" },
@@ -99,8 +97,7 @@ describe("SnowflakeCortexPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("snowflake-cortex"), ModelV2.ID.make("claude-sonnet-4-6")),
             modelID: ModelV2.ID.make("claude-sonnet-4-6"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/openai-compatible",
           options: {
@@ -124,8 +121,7 @@ describe("SnowflakeCortexPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("snowflake-cortex"), ModelV2.ID.make("claude-sonnet-4-6")),
             modelID: ModelV2.ID.make("claude-sonnet-4-6"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/openai-compatible",
           options: { name: "snowflake-cortex", baseURL: "https://test.snowflakecomputing.com/api/v2/cortex/v1" },
@@ -145,8 +141,7 @@ describe("SnowflakeCortexPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("snowflake-cortex"), ModelV2.ID.make("claude-sonnet-4-6")),
             modelID: ModelV2.ID.make("claude-sonnet-4-6"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/openai-compatible",
           options: {
@@ -170,8 +165,7 @@ describe("SnowflakeCortexPlugin", () => {
           model: ModelV2.Info.make({
             ...ModelV2.Info.empty(ProviderV2.ID.make("snowflake-cortex"), ModelV2.ID.make("claude-sonnet-4-6")),
             modelID: ModelV2.ID.make("claude-sonnet-4-6"),
-            aisdk: true,
-            package: "test-provider",
+            package: "aisdk:test-provider",
           }),
           package: "@ai-sdk/openai-compatible",
           options: { name: "snowflake-cortex", baseURL: "https://test.snowflakecomputing.com/api/v2/cortex/v1" },
diff --git a/packages/core/test/plugin/provider-togetherai.test.ts b/packages/core/test/plugin/provider-togetherai.test.ts
index fc87a0cfbd..1fffb03156 100644
--- a/packages/core/test/plugin/provider-togetherai.test.ts
+++ b/packages/core/test/plugin/provider-togetherai.test.ts
@@ -42,8 +42,7 @@ describe("TogetherAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("togetherai"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/togetherai",
         options: { name: "togetherai" },
@@ -62,8 +61,7 @@ describe("TogetherAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("togetherai"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "file:///tmp/@ai-sdk/togetherai-provider.js",
         options: { name: "togetherai" },
@@ -74,8 +72,7 @@ describe("TogetherAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("togetherai"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/togetherai",
         options: { name: "togetherai" },
@@ -94,8 +91,7 @@ describe("TogetherAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-togetherai"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/togetherai",
         options: { name: "custom-togetherai" },
@@ -119,8 +115,7 @@ describe("TogetherAIPlugin", () => {
             ModelV2.ID.make("meta-llama/Llama-3.3-70B-Instruct-Turbo"),
           ),
           modelID: ModelV2.ID.make("meta-llama/Llama-3.3-70B-Instruct-Turbo"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
         options: {},
diff --git a/packages/core/test/plugin/provider-venice.test.ts b/packages/core/test/plugin/provider-venice.test.ts
index ba4cfef8af..057d2c6ded 100644
--- a/packages/core/test/plugin/provider-venice.test.ts
+++ b/packages/core/test/plugin/provider-venice.test.ts
@@ -42,8 +42,7 @@ describe("VenicePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("venice"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "venice-ai-sdk-provider",
         options: { name: "venice" },
@@ -61,8 +60,7 @@ describe("VenicePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-venice"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "venice-ai-sdk-provider",
         options: { name: "custom-venice", apiKey: "test" },
@@ -81,8 +79,7 @@ describe("VenicePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("venice"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "file:///tmp/venice-ai-sdk-provider.js",
         options: { name: "venice" },
@@ -91,8 +88,7 @@ describe("VenicePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("venice"), ModelV2.ID.make("model")),
           modelID: ModelV2.ID.make("model"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         package: "@ai-sdk/openai-compatible",
         options: { name: "venice" },
@@ -112,8 +108,7 @@ describe("VenicePlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("venice"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("alias"),
-          aisdk: true,
-          package: "test-provider",
+          package: "aisdk:test-provider",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
diff --git a/packages/core/test/plugin/provider-vercel.test.ts b/packages/core/test/plugin/provider-vercel.test.ts
index 08f169aa6e..46d5fe25b8 100644
--- a/packages/core/test/plugin/provider-vercel.test.ts
+++ b/packages/core/test/plugin/provider-vercel.test.ts
@@ -25,8 +25,7 @@ describe("VercelPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("vercel"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/vercel"
+          provider.package = ProviderV2.aisdk("@ai-sdk/vercel")
           provider.headers = { ...provider.headers, Existing: "1" }
         })
       })
@@ -44,8 +43,7 @@ describe("VercelPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) =>
         catalog.provider.update(ProviderV2.ID.make("vercel"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/vercel"
+          provider.package = ProviderV2.aisdk("@ai-sdk/vercel")
         }),
       )
       yield* addPlugin()
@@ -63,8 +61,7 @@ describe("VercelPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-vercel"), ModelV2.ID.make("v0-1.0-md")),
           modelID: ModelV2.ID.make("v0-1.0-md"),
-          aisdk: true,
-          package: "@ai-sdk/vercel",
+          package: "aisdk:@ai-sdk/vercel",
         }),
         package: "@ai-sdk/vercel",
         options: { name: "custom-vercel" },
diff --git a/packages/core/test/plugin/provider-xai.test.ts b/packages/core/test/plugin/provider-xai.test.ts
index 525b2bbb62..94824af339 100644
--- a/packages/core/test/plugin/provider-xai.test.ts
+++ b/packages/core/test/plugin/provider-xai.test.ts
@@ -43,8 +43,7 @@ describe("XAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("xai"), ModelV2.ID.make("grok-4")),
           modelID: ModelV2.ID.make("grok-4"),
-          aisdk: true,
-          package: "@ai-sdk/xai",
+          package: "aisdk:@ai-sdk/xai",
         }),
         package: "@ai-sdk/openai-compatible",
         options: {},
@@ -54,8 +53,7 @@ describe("XAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("xai"), ModelV2.ID.make("grok-4")),
           modelID: ModelV2.ID.make("grok-4"),
-          aisdk: true,
-          package: "@ai-sdk/xai",
+          package: "aisdk:@ai-sdk/xai",
         }),
         package: "@ai-sdk/xai",
         options: {},
@@ -76,8 +74,7 @@ describe("XAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("custom-xai"), ModelV2.ID.make("grok-4")),
           modelID: ModelV2.ID.make("grok-4"),
-          aisdk: true,
-          package: "@ai-sdk/xai",
+          package: "aisdk:@ai-sdk/xai",
         }),
         package: "@ai-sdk/xai",
         options: {},
@@ -98,8 +95,7 @@ describe("XAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.make("xai"), ModelV2.ID.make("alias")),
           modelID: ModelV2.ID.make("grok-4"),
-          aisdk: true,
-          package: "@ai-sdk/xai",
+          package: "aisdk:@ai-sdk/xai",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
@@ -121,8 +117,7 @@ describe("XAIPlugin", () => {
         model: ModelV2.Info.make({
           ...ModelV2.Info.empty(ProviderV2.ID.openai, ModelV2.ID.make("grok-4")),
           modelID: ModelV2.ID.make("grok-4"),
-          aisdk: true,
-          package: "@ai-sdk/xai",
+          package: "aisdk:@ai-sdk/xai",
         }),
         sdk: fakeSelectorSdk(calls),
         options: {},
diff --git a/packages/core/test/plugin/provider-zenmux.test.ts b/packages/core/test/plugin/provider-zenmux.test.ts
index 15da40167e..02856e232a 100644
--- a/packages/core/test/plugin/provider-zenmux.test.ts
+++ b/packages/core/test/plugin/provider-zenmux.test.ts
@@ -32,8 +32,7 @@ describe("ZenmuxPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("zenmux"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://zenmux.ai/api/v1" }
         })
       })
@@ -49,8 +48,7 @@ describe("ZenmuxPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("zenmux"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://zenmux.ai/api/v1" }
           provider.headers = { ...provider.headers, Existing: "value" }
         })
@@ -70,8 +68,7 @@ describe("ZenmuxPlugin", () => {
       const catalog = yield* Catalog.Service
       yield* catalog.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.make("zenmux"), (provider) => {
-          provider.aisdk = true
-          provider.package = "@ai-sdk/openai-compatible"
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
           provider.settings = { ...provider.settings, baseURL: "https://zenmux.ai/api/v1" }
           provider.headers = { "HTTP-Referer": "https://example.com/", "X-Title": "custom-title" }
         })
diff --git a/packages/core/test/plugin/variant.test.ts b/packages/core/test/plugin/variant.test.ts
index e20fd3a11d..fc85cc69ce 100644
--- a/packages/core/test/plugin/variant.test.ts
+++ b/packages/core/test/plugin/variant.test.ts
@@ -23,13 +23,7 @@ const connections = Credential.defaultLayer.pipe(Layer.fresh)
 const integrations = Integration.locationLayer.pipe(Layer.provide(events), Layer.provide(connections))
 const catalog = Catalog.layer.pipe(
   Layer.provide(
-    Layer.mergeAll(
-      events,
-      locationLayer,
-      Policy.layer.pipe(Layer.provide(locationLayer)),
-      connections,
-      integrations,
-    ),
+    Layer.mergeAll(events, locationLayer, Policy.layer.pipe(Layer.provide(locationLayer)), connections, integrations),
   ),
 )
 const it = testEffect(
@@ -42,13 +36,11 @@ describe("VariantPlugin", () => {
       const service = yield* Catalog.Service
       yield* service.transform((catalog) => {
         catalog.provider.update(ProviderV2.ID.opencode, (provider) => {
-          provider.package = "@ai-sdk/openai-compatible"
-          provider.aisdk = true
+          provider.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
         })
         catalog.model.update(ProviderV2.ID.opencode, ModelV2.ID.make("glm-5.2"), (model) => {
           model.modelID = ModelV2.ID.make("glm-5.2")
-          model.package = "@ai-sdk/openai-compatible"
-          model.aisdk = true
+          model.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
         })
       })
       yield* VariantPlugin.Plugin.effect(host({ catalog: catalogHost(service) }))
@@ -66,11 +58,8 @@ describe("VariantPlugin", () => {
       yield* service.transform((catalog) => {
         catalog.model.update(ProviderV2.ID.opencode, ModelV2.ID.make("glm-5.2"), (model) => {
           model.modelID = ModelV2.ID.make("glm-5.2")
-          model.package = "@ai-sdk/openai-compatible"
-          model.aisdk = true
-          model.variants = [
-            { id: ModelV2.VariantID.make("high"), headers: { custom: "true" } },
-          ]
+          model.package = ProviderV2.aisdk("@ai-sdk/openai-compatible")
+          model.variants = [{ id: ModelV2.VariantID.make("high"), headers: { custom: "true" } }]
         })
       })
       yield* VariantPlugin.Plugin.effect(host({ catalog: catalogHost(service) }))
diff --git a/packages/core/test/session-runner-model.test.ts b/packages/core/test/session-runner-model.test.ts
index d2283a1086..824e0278f1 100644
--- a/packages/core/test/session-runner-model.test.ts
+++ b/packages/core/test/session-runner-model.test.ts
@@ -14,7 +14,6 @@ import { it } from "./lib/effect"
 
 type Transport = {
   readonly package: string
-  readonly aisdk?: true
   readonly settings?: Record<string, unknown>
 }
 
@@ -38,10 +37,36 @@ const model = (transport: Transport, variants?: NonNullable<ModelV2.Info["varian
   })
 
 describe("SessionRunnerModel", () => {
+  it.effect("constructs native provider package models mechanically", () =>
+    Effect.gen(function* () {
+      const resolved = yield* SessionRunnerModel.fromCatalogModel(
+        model({
+          package: "@opencode-ai/llm/providers/openai",
+          settings: { baseURL: "https://openai.example/v1" },
+        }),
+        Credential.Key.make({ type: "key", key: "runtime-secret" }),
+      )
+      const headers = yield* resolved.route.auth.apply({
+        request: LLM.request({ model: resolved, prompt: "Hello" }),
+        method: "POST",
+        url: "https://openai.example/v1/responses",
+        body: "{}",
+        headers: Headers.empty,
+      })
+
+      expect(String(resolved.id)).toBe("api-test-model")
+      expect(resolved.route.id).toBe("openai-responses")
+      expect(resolved.route.defaults.headers).toEqual({ "x-test": "header" })
+      expect(resolved.route.defaults.http?.body).toEqual({ custom_extension: { enabled: true } })
+      expect(resolved.route.defaults.limits).toEqual({ context: 100, output: 20 })
+      expect(headers.authorization).toBe("Bearer runtime-secret")
+    }),
+  )
+
   it.effect("maps catalog OpenAI AI SDK models into native Responses routes", () =>
     Effect.gen(function* () {
       const resolved = yield* SessionRunnerModel.fromCatalogModel(
-        model({ package: "@ai-sdk/openai", aisdk: true, settings: { baseURL: "https://openai.example/v1" } }),
+        model({ package: "aisdk:@ai-sdk/openai", settings: { baseURL: "https://openai.example/v1" } }),
       )
 
       expect(resolved).toMatchObject({ id: "api-test-model", provider: "test-provider" })
@@ -60,7 +85,7 @@ describe("SessionRunnerModel", () => {
   it.effect("keeps catalog apiKey credentials out of provider JSON", () =>
     Effect.gen(function* () {
       const resolved = yield* SessionRunnerModel.fromCatalogModel(
-        model({ package: "@ai-sdk/openai", aisdk: true, settings: { baseURL: "https://openai.example/v1" } }),
+        model({ package: "aisdk:@ai-sdk/openai", settings: { baseURL: "https://openai.example/v1" } }),
       )
       const prepared = yield* LLMClient.prepare(LLM.request({ model: resolved, prompt: "Hello" }))
 
@@ -74,8 +99,7 @@ describe("SessionRunnerModel", () => {
       const resolved = yield* SessionRunnerModel.fromCatalogModel(
         ModelV2.Info.make({
           ...model({
-            package: "@ai-sdk/openai-compatible",
-            aisdk: true,
+            package: "aisdk:@ai-sdk/openai-compatible",
             settings: {
               apiKey: "settings-secret",
               baseURL: "https://compatible.example/v1",
@@ -102,7 +126,7 @@ describe("SessionRunnerModel", () => {
 
   it.effect("overlays selected OpenAI Session variant bodies", () =>
     Effect.gen(function* () {
-      const catalog = model({ package: "@ai-sdk/openai", aisdk: true, settings: { baseURL: "https://openai.example/v1" } }, [
+      const catalog = model({ package: "aisdk:@ai-sdk/openai", settings: { baseURL: "https://openai.example/v1" } }, [
         {
           id: ModelV2.VariantID.make("high"),
           headers: { "x-variant": "high" },
@@ -146,8 +170,7 @@ describe("SessionRunnerModel", () => {
     Effect.gen(function* () {
       const catalog = model(
         {
-          package: "@ai-sdk/openai-compatible",
-          aisdk: true,
+          package: "aisdk:@ai-sdk/openai-compatible",
           settings: { baseURL: "https://compatible.example/v1" },
         },
         [
@@ -181,7 +204,7 @@ describe("SessionRunnerModel", () => {
 
   it.effect("rejects an explicit unavailable Session variant during model resolution", () =>
     Effect.gen(function* () {
-      const catalog = model({ package: "@ai-sdk/openai", aisdk: true, settings: { baseURL: "https://openai.example/v1" } })
+      const catalog = model({ package: "aisdk:@ai-sdk/openai", settings: { baseURL: "https://openai.example/v1" } })
       const session = SessionV2.Info.make({
         id: SessionV2.ID.make("ses_model_variant_unavailable"),
         projectID: ProjectV2.ID.global,
@@ -211,13 +234,16 @@ describe("SessionRunnerModel", () => {
 
   it.effect("overlays selected Anthropic Session variant bodies", () =>
     Effect.gen(function* () {
-      const catalog = model({ package: "@ai-sdk/anthropic", aisdk: true, settings: { baseURL: "https://anthropic.example/v1" } }, [
-        {
-          id: ModelV2.VariantID.make("high"),
-          headers: {},
-          body: { thinking: { type: "enabled", budget_tokens: 12000 } },
-        },
-      ])
+      const catalog = model(
+        { package: "aisdk:@ai-sdk/anthropic", settings: { baseURL: "https://anthropic.example/v1" } },
+        [
+          {
+            id: ModelV2.VariantID.make("high"),
+            headers: {},
+            body: { thinking: { type: "enabled", budget_tokens: 12000 } },
+          },
+        ],
+      )
       const session = SessionV2.Info.make({
         id: SessionV2.ID.make("ses_anthropic_variant"),
         projectID: ProjectV2.ID.global,
@@ -241,7 +267,7 @@ describe("SessionRunnerModel", () => {
   it.effect("maps catalog Anthropic AI SDK models into native routes", () =>
     Effect.gen(function* () {
       const resolved = yield* SessionRunnerModel.fromCatalogModel(
-        model({ package: "@ai-sdk/anthropic", aisdk: true, settings: { baseURL: "https://anthropic.example/v1" } }),
+        model({ package: "aisdk:@ai-sdk/anthropic", settings: { baseURL: "https://anthropic.example/v1" } }),
       )
 
       expect(resolved.route).toMatchObject({
@@ -255,7 +281,7 @@ describe("SessionRunnerModel", () => {
     Effect.gen(function* () {
       const resolved = yield* SessionRunnerModel.fromCatalogModel(
         ModelV2.Info.make({
-          ...model({ package: "@ai-sdk/openai", aisdk: true, settings: { baseURL: "https://openai.example/v1" } }),
+          ...model({ package: "aisdk:@ai-sdk/openai", settings: { baseURL: "https://openai.example/v1" } }),
           headers: {},
           body: {},
         }),
@@ -279,7 +305,7 @@ describe("SessionRunnerModel", () => {
       const credential = Credential.Key.make({ type: "key", key: "stored-secret", metadata: { tenant: "work" } })
       const resolved = yield* SessionRunnerModel.fromCatalogModel(
         ModelV2.Info.make({
-          ...model({ package: "@ai-sdk/openai", aisdk: true, settings: { baseURL: "https://openai.example/v1" } }),
+          ...model({ package: "aisdk:@ai-sdk/openai", settings: { baseURL: "https://openai.example/v1" } }),
           settings: { apiKey: "configured-secret", baseURL: "https://openai.example/v1" },
           headers: {},
           body: {},
@@ -302,7 +328,7 @@ describe("SessionRunnerModel", () => {
   it.effect("rejects catalog APIs without a native route", () =>
     Effect.gen(function* () {
       const failure = yield* SessionRunnerModel.fromCatalogModel(
-        model({ package: "@ai-sdk/google", aisdk: true, settings: { baseURL: "https://google.example/v1" } }),
+        model({ package: "aisdk:@ai-sdk/google", settings: { baseURL: "https://google.example/v1" } }),
       ).pipe(Effect.flip)
 
       expect(failure).toMatchObject({
@@ -319,15 +345,15 @@ describe("SessionRunnerModel", () => {
     Effect.sync(() => {
       expect(
         SessionRunnerModel.supported(
-          model({ package: "@ai-sdk/openai", aisdk: true, settings: { baseURL: "https://openai.example/v1" } }),
+          model({ package: "aisdk:@ai-sdk/openai", settings: { baseURL: "https://openai.example/v1" } }),
         ),
       ).toBe(true)
       expect(
         SessionRunnerModel.supported(
-          model({ package: "@ai-sdk/google", aisdk: true, settings: { baseURL: "https://google.example/v1" } }),
+          model({ package: "aisdk:@ai-sdk/google", settings: { baseURL: "https://google.example/v1" } }),
         ),
       ).toBe(false)
-      expect(SessionRunnerModel.supported(model({ package: "native" }))).toBe(false)
+      expect(SessionRunnerModel.supported(model({ package: "native-provider-package" }))).toBe(true)
     }),
   )
 })
diff --git a/packages/sdk/js/src/v2/gen/types.gen.ts b/packages/sdk/js/src/v2/gen/types.gen.ts
index 694e00560c..6d91a3ac96 100644
--- a/packages/sdk/js/src/v2/gen/types.gen.ts
+++ b/packages/sdk/js/src/v2/gen/types.gen.ts
@@ -3991,7 +3991,6 @@ export type ModelV2Info = {
   family?: string
   name: string
   package?: string
-  aisdk?: true
   settings?: {
     [key: string]: unknown
   }
@@ -4048,7 +4047,6 @@ export type ProviderV2Info = {
   name: string
   disabled?: boolean
   package: string
-  aisdk?: true
   settings?: {
     [key: string]: unknown
   }