unexpected status 404 Not Found: Model not found gpt-5.4
Resolved 💬 7 comments Opened Apr 21, 2026 by zeroxjf Closed Apr 26, 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?
0.122.0
What subscription do you have?
Max 20x
Which model were you using?
gpt 5.4 high
What platform is your computer?
macOS
What terminal emulator and version are you using (if applicable)?
cmux
What issue are you seeing?
"unexpected status 404 Not Found: Model not found gpt-5.4"
It was working fine for hours, then suddenly model not found.
What steps can reproduce the bug?
Uploaded thread: 019dad2d-160b-7e40-82cb-2066ea6f814a
What is the expected behavior?
_No response_
Additional information
_No response_
7 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
Powered by Codex Action
So do I
+1
me too，QAQ
+1
+1
I think this was due to a temporary glitch as we were preparing to roll out gpt-5.5. Should be fixed now.