Adjusted conversation by Codex

What version of the Codex App are you using (From “About Codex” dialog)?

26.527.60818

What subscription do you have?

Plus

What platform is your computer?

Windows 11 x86

What issue are you seeing?

{"type":"error","status":400,"error":{"type":"invalid_request_error","message":"The 'gpt-5.3-codex' model is not supported when using Codex with a ChatGPT account."}}

What steps can reproduce the bug?

Feedback ID: no-active-thread-019e8731-af35-79b2-94a8-550b1c1cd11d

What is the expected behavior?

_No response_

Additional information

_No response_