Codex failing to write code, just giving errors

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

26.576.....

What subscription do you have?

plus

What platform is your computer?

_No response_

What issue are you seeing?

<img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/4875dbac-30a0-46c1-8bbf-b9300ec5d74d" />

What steps can reproduce the bug?

Feedback ID: 019e7c93-8f3f-7ef2-88e7-e7c146120975

What is the expected behavior?

<img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/f6f6630a-43aa-4dff-8693-e44d51758e62" />

Additional information

{"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."}}
{"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."}}
{"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."}}