The model `gpt-5.1-codex-max` does not exist or you do not have access to it.
Resolved 💬 2 comments Opened Nov 21, 2025 by iLiftALot Closed Nov 21, 2025
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of Codex is running?
0.61.0
What subscription do you have?
Plus
Which model were you using?
5.1-codex.max
What platform is your computer?
Darwin 24.3.0 arm64 arm
What issue are you seeing?
Whenever I attempt to send a message with the new 5.1-codex-max, I get this error:
Turn error: stream disconnected before completion: The model `gpt-5.1-codex-max` does not exist or you do not have access to it.All other models work correctly. This also occurs when I try to prompt 5.1-codex-max via the API.
What steps can reproduce the bug?
Making any API call using this model
What is the expected behavior?
_No response_
Additional information
_No response_
2 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Closing as duplicate of #7016. This is expected currently because
gpt-5.1-codex-maxhasn't yet been made available for API calls.