no o3 model in list
Resolved 💬 10 comments Opened Apr 17, 2025 by Horik0707 Closed Aug 7, 2025
💡 Likely answer: A maintainer (tibo-openai, collaborator)
responded on this thread — see the highlighted reply below.
│ localhost session: 5ea6def79ff24dd6b2b2bc451da1518f │
│ ↳ workdir: ~/Documents/CodexCLI │
│ ↳ model: o3 │
│ ↳ approval: suggest │
╰──────────────────────────────────────────────────────────────╯
system
Warning: model "o3" is not in the list of available models returned by
OpenAI.
10 Comments
Seems like we need to add a model inside the openai library as I see the issue can result from below.
!Image
Do you have access to the
o3model in general?I have o3 and I also get this error today: model "o3" is not in the list of available models returned by OpenAI.
o3 also not showing in Playground, but it's available in chatgpt.
Same here.
Has anyone had it working previously, but then it stopped? I assumed they just didn't enable it in the first place for codex.
@rai2270 @evanheckert @tomascupr O3 has released just 2 days ago on 16th april. Hence, its not updated in the offical library so it might be giving you the error
https://platform.openai.com/docs/models/o3
But "To ensure safe deployment of our latest reasoning models o3 and o4-mini, some developers may need to complete organization verification before accessing these models."
Working now. You just need to complete verification.
I'm in the UK, don't see o3 in the Codex model list. I'm using an API key from my personal account; am I right to think that location constraints will stop me from fixing this for now?
<img width="695" alt="Image" src="https://github.com/user-attachments/assets/c895f6b0-4b03-43e9-87d4-cc436f445ece" />
FAQ:
<img width="694" alt="Image" src="https://github.com/user-attachments/assets/9270f264-b985-4397-871c-cbedba124e11" />
Thanks for the feedback! Please try again on the latest version of Codex CLI to see if the issue persists. If it does, feel free to report back.