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Add gpt-5.4-pro to ChatGPT Plus/Pro OAuth allowlist #19366
Description
Question
Hi! Thanks for OpenCode — the ChatGPT Plus/Pro OAuth flow works great.
I noticed that in packages/opencode/src/plugin/codex.ts, the OAuth allowlist includes:
gpt-5.4gpt-5.4-mini
but does not include:
gpt-5.4-pro
At the moment, this means gpt-5.4-pro does not show up when using the ChatGPT Plus/Pro auth method, even though regular gpt-5.4 does.
Would it be possible to add gpt-5.4-pro to the allowlist, or clarify whether this omission is intentional?
Relevant code section:
const allowedModels = new Set([
"gpt-5.1-codex",
"gpt-5.1-codex-max",
"gpt-5.1-codex-mini",
"gpt-5.2",
"gpt-5.2-codex",
"gpt-5.3-codex",
"gpt-5.4",
"gpt-5.4-mini",
])Questions:
- Is
gpt-5.4-prointentionally unsupported for ChatGPT Plus/Pro OAuth in OpenCode? - If not, could it be added to the allowlist?
- If support depends on upstream OpenAI/Codex restrictions, could that be documented so users understand why
gpt-5.4is available butgpt-5.4-prois not?
This would help clarify whether the limitation is:
- an OpenCode-side filtering decision,
- an upstream auth/backend restriction,
- or simply something that has not been added yet.
Thanks!
Reacted by Alexandr Abaskalov and Vlad Gerasov
Activity
github-actions commentedon Mar 27, 2026
This issue might be a duplicate of existing issues. Please check:
abaskalov commentedon Mar 27, 2026
I tested this locally with a ChatGPT Personal Pro OAuth login.
After patching the OpenCode OAuth/Codex allowlist,
gpt-5.4-prodoes appear inopencode models openai, so the model is indeed being hidden on the OpenCode side right now.However, the actual request still fails on the OpenAI backend with:
The 'gpt-5.4-pro' model is not supported when using Codex with a ChatGPT account.So this looks like two separate constraints:
gpt-5.4-profor the ChatGPT-account Codex flow anywayI wrote up the reproduction and result here:
https://gist.github.com/abaskalov/e25fceccc0826c4679a9900f6ca70055
sosise commentedon Mar 28, 2026
close