From f86fdb97129597b0185b2b02a4da63b3b228e6a6 Mon Sep 17 00:00:00 2001
From: Aiden Cline <aidenpcline@gmail.com>
Date: Tue, 21 Jul 2026 21:03:38 -0500
Subject: [PATCH] fix(provider): preserve MiniMax defaults

---
 packages/opencode/src/provider/transform.ts   |  5 +---
 .../opencode/test/provider/transform.test.ts  | 30 ++++++++++++++-----
 2 files changed, 23 insertions(+), 12 deletions(-)

diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
index 26c7d80ff0..de6677941b 100644
--- a/packages/opencode/src/provider/transform.ts
+++ b/packages/opencode/src/provider/transform.ts
@@ -684,10 +684,7 @@ function googleThinkingVariants(model: Provider.Model): Record<string, Record<st
 
 function minimaxM3ThinkingVariants(model: Provider.Model): Provider.Model["variants"] {
   if (!model.api.id.toLowerCase().includes("minimax-m3")) return
-  if (
-    (model.providerID === "kilo" && model.api.npm === "@ai-sdk/openai-compatible") ||
-    (model.providerID === "vercel" && model.api.npm === "@ai-sdk/gateway")
-  ) {
+  if (model.providerID === "kilo" && model.api.npm === "@ai-sdk/openai-compatible") {
     return {
       none: { reasoning: { enabled: false } },
       thinking: { reasoning: { enabled: true } },
diff --git a/packages/opencode/test/provider/transform.test.ts b/packages/opencode/test/provider/transform.test.ts
index 5da2b00b15..3c4128e4f5 100644
--- a/packages/opencode/test/provider/transform.test.ts
+++ b/packages/opencode/test/provider/transform.test.ts
@@ -3091,6 +3091,12 @@ describe("ProviderTransform.reasoningVariants", () => {
     expect(ProviderTransform.reasoningVariants(model([]), target("@ai-sdk/openai"))).toEqual({})
   })
 
+  test("preserves fixed reasoning for the paid OpenCode MiniMax M3 route", () => {
+    expect(
+      ProviderTransform.reasoningVariants(model([]), target("@ai-sdk/openai-compatible", "minimax-m3", "opencode")),
+    ).toEqual({})
+  })
+
   test.each([
     ["@openrouter/ai-sdk-provider", { reasoning: { effort: "high" } }],
     ["@ai-sdk/anthropic", { thinking: { type: "adaptive" }, effort: "high" }, "claude-opus-4-6"],
@@ -3271,6 +3277,22 @@ describe("ProviderTransform.reasoningVariants", () => {
         thinking: { thinking: { type: "adaptive" } },
       },
     ],
+    [
+      "opencode",
+      "@ai-sdk/anthropic",
+      {
+        none: { thinking: { type: "disabled" } },
+        thinking: { thinking: { type: "adaptive" } },
+      },
+    ],
+    [
+      "opencode-go",
+      "@ai-sdk/anthropic",
+      {
+        none: { thinking: { type: "disabled" } },
+        thinking: { thinking: { type: "adaptive" } },
+      },
+    ],
     [
       "nvidia",
       "@ai-sdk/openai-compatible",
@@ -3295,14 +3317,6 @@ describe("ProviderTransform.reasoningVariants", () => {
         thinking: { reasoning: { enabled: true } },
       },
     ],
-    [
-      "vercel",
-      "@ai-sdk/gateway",
-      {
-        none: { reasoning: { enabled: false } },
-        thinking: { reasoning: { enabled: true } },
-      },
-    ],
   ])("maps MiniMax M3 toggle options for %s", (providerID, npm, expected) => {
     expect(
       ProviderTransform.reasoningVariants(model([{ type: "toggle" }]), target(npm, "minimaxai/minimax-m3", providerID)),