GPT 5.4 hallucinates paths and files

Resolved 💬 2 comments Opened Mar 8, 2026 by luizwidmer Closed Mar 8, 2026
💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

What version of Codex CLI is running?

codex-cli 0.111.0

What subscription do you have?

Plus

Which model were you using?

gpt 5.4 high

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What terminal emulator and version are you using (if applicable)?

Powershell

What issue are you seeing?

Model is hallucinating paths to files that aren't there also files that don't exist

What steps can reproduce the bug?

Uploaded thread: 019cc807-4242-7e83-b92b-f3791be15d33

What is the expected behavior?

_No response_

Additional information

_No response_

View original on GitHub ↗

2 Comments

github-actions[bot] contributor · 5 months ago

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

  • #13823

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etraut-openai contributor · 5 months ago

Thanks for the bug report. We'll share the feedback with the team responsible for training our codex models. If you see other model behavior that you'd like to report, please use the /feedback command. That will provide us with additional details including logs and conversation text.