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fix(core): route ChatGPT OAuth to the codex backend (#34843)

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Kit Langton 2026-07-02 00:15:34 -04:00 • committed by GitHub
commit 674d08f9be
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5 changed files with 279 additions and 1 deletions
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16
packages/core/src/session/runner/model.ts
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@ -12,6 +12,7 @@ import { Catalog } from "../../catalog"
import { Credential } from "../../credential"
import { Integration } from "../../integration"
import { ModelV2 } from "../../model"
import { OpenAICodex } from "../../plugin/provider/openai-codex"
import { ProviderV2 } from "../../provider"
import { SessionSchema } from "../schema"
@ -140,6 +141,21 @@ export const fromCatalogModel = (
})
const key = apiKey(resolved, credential)
if (resolved.api.type === "aisdk" && resolved.api.package === "@ai-sdk/openai") {
// ChatGPT-plan OAuth tokens are not API-key credentials: the public API rejects
// them, so requests must target the codex backend with the account header.
if (OpenAICodex.isChatGPT(credential)) {
const account = OpenAICodex.accountID(credential)
return Effect.succeed(
withDefaults(resolved, OpenAIResponses.route)
.with({
endpoint: { baseURL: OpenAICodex.baseURL },
auth: (key === undefined ? Auth.none : Auth.bearer(key)).andThen(
account === undefined ? Auth.none : Auth.headers({ "chatgpt-account-id": account }),
),
})
.model({ id: resolved.api.id }),
)
}
return Effect.succeed(
withDefaults(resolved, OpenAIResponses.route)
.with({ auth: key === undefined ? Auth.none : Auth.bearer(key) })