openai / openai/codex

Unexpected 404 error in codex

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#42,534 30 comments 23 reactions 0 assignees View on GitHub

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app bug connectivity
Dominant language
Rust
Stars
125k
Forks
19.4k
PR merge metrics
PR metrics pending

Description

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

26.826.12353

What subscription do you have?

Pro 20x

What platform is your computer?

Mac

What issue are you seeing?

unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a35589ba6881197b-NRT
This error keep happening in codex.

Image

This also happens in chatgpt web.

Image
What steps can reproduce the bug?

Just try chat with codex.

What is the expected behavior?

No response

Additional information

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the failure through the Codex chat flow and the reported entry point, https://chatgpt.com/backend-api/codex/responses, using the listed app version and platform. Compare the Codex and ChatGPT web behavior, then trace where the 404 is surfaced; done means identifying a project-owned cause and verifying that the request no longer returns the reported error.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
api, backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
25/100

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