openai / openai/codex

unexpected status 404 Not Found

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#42,536 2 comments 6 reactions 0 assignees View on GitHub

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

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

26.820.60940

What subscription do you have?

pro 20x

What platform is your computer?

Darwin 25.2.0 arm64 arm

What issue are you seeing?

unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a35594644e22dcc2-FRA, request id: 01a067c1-fa5d-7a45-908e-696e674fc9c1

What steps can reproduce the bug?

send prompt

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 with a prompt in Codex App 26.820.60940 on Darwin arm64, then inspect the request to https://chatgpt.com/backend-api/codex/responses and its 404 response. Done means identifying why the request is rejected and confirming that sending a prompt succeeds afterward.

Written by the indexing model from the issue text.

Assessment

Tech stack
macos, rust
Domain
backend-api-design
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
42/100

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