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fix(core): tighten ChatGPT codex model eligibility

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Replace the codex-substring heuristic with the empirically verified
allow/disallow lists plus the >5.4 version rule; the ChatGPT backend
rejects models like gpt-5.3-codex that the substring rule admitted.
This commit is contained in:
Kit Langton 2026-07-03 14:51:00 -04:00
commit f019bb3abf
2 changed files with 16 additions and 7 deletions
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13
packages/core/src/plugin/provider/openai.ts
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@ -181,7 +181,7 @@ export const OpenAIPlugin = define({
if (!chatgpt) continue
for (const model of item.models.values()) {
evt.model.update(item.provider.id, model.id, (draft) => {
if (!eligible(draft)) {
if (!eligible(draft.api.id)) {
draft.enabled = false
return
}
@ -316,8 +316,15 @@ function isChatGPT(credential: { readonly type: string; readonly methodID?: stri
)
}
function eligible(model: { readonly id: string }) {
return model.id.includes("codex")
const chatgptAllowed = new Set(["gpt-5.5", "gpt-5.3-codex-spark", "gpt-5.4", "gpt-5.4-mini"])
const chatgptDisallowed = new Set(["gpt-5.5-pro"])
/** Which API model ids a ChatGPT subscription may call through the codex backend. */
function eligible(apiID: string) {
if (chatgptAllowed.has(apiID)) return true
if (chatgptDisallowed.has(apiID)) return false
const match = apiID.match(/^gpt-(\d+\.\d+)/)
return match ? Number.parseFloat(match[1]) > 5.4 : false
}
function claim(token: string) {