{"detail":"The 'gpt-5.3-codex' model is not supported when using Codex with a ChatGPT account."}
Resolved 💬 6 comments Opened Mar 11, 2026 by dgiunchi Closed Mar 11, 2026
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of Codex CLI is running?
codex-cli 0.114.0
What subscription do you have?
pro
Which model were you using?
tested with gpt-5.3-codex and gpt-5.4
What platform is your computer?
Windows
What terminal emulator and version are you using (if applicable)?
CMD
What issue are you seeing?
It is a few hour that I can not access 5.3 and 5.4 , and I have a pro subscription
What steps can reproduce the bug?
codex login
codex
write a prompt
What is the expected behavior?
that it should work
Additional information
codex app suffer of the same thing
6 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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but I'm with a pro account
im subscribed to a plus plan and facing the same error.
<img width="597" height="457" alt="Image" src="https://github.com/user-attachments/assets/5b11785f-1475-436a-acc9-38d6bac0cdb3" />
Any solution for windows user?
Thanks for reporting. If you have a paid subscription, you should have access to gpt-5.3-codex and gpt-5.4. We're looking into this issue. For consolidation purposes, I'm going to close this in favor of #14331. I'll report back there when I have updates.