2 people reported

All time, since Sep 25.

404 model gpt-5.5 not found

“I have purchase the GO plan and tried with the prompt to check my code and suggest code changes I am constantly getting below error -”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/codex/issues/15412/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

Requests fail with 404 model gpt-5.5 not found on Go plan. Shows in the Codex App and the VS Code plugin when logged in with a GO account, even after texting "hi".

Is this your bug?

File my report
Where
Codex App, VS Code extension
Error text
unexpected status 404 Not Found: The model gpt-5.5 does not exist or you do not have access to it., url: https://chatgpt.com/backend-api/codex/responses
Versions
26.917.71314
Platforms
Windows
How bad
Stops work: a core feature can't be used.

Original reports2, newest first

  1. getting error in codex extension in vscodeOn GitHub#48437
  2. Codex GO Plan purchase but not workingOn GitHub#48011

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