codex - 💡(How to fix) Fix Codex gets stuck in a weird echo loop sometimes [2 comments, 3 participants]

Official PRs (…)
ON THIS PAGE

Recommended Tools

×6

Utilities matched from this issue’s tags and category — try them while you read without losing context.

GitHub issue graph ai analysis

Paste a GitHub issue URL. We fetch that issue, discover linked issues from bodies/comments/timeline, collect linked pull requests, and produce a structured English report.

The report is written in English Markdown for sharing and archival.

Helpful · Quick feedback

Loading…
GitHub stats
openai/codex#18128Fetched 2026-04-17 08:32:24
View on GitHub
Comments
2
Participants
3
Timeline
6
Reactions
0
Timeline (top)
labeled ×3commented ×2closed ×1
RAW_BUFFERClick to expand / collapse

What version of Codex CLI is running?

0.121.0

What subscription do you have?

Plus

Which model were you using?

gpt-5.4

What platform is your computer?

Linux 6.1.0-43-amd64 x86_64 unknown

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

via ssh, not applicable

What issue are you seeing?

This has happened twice now. It seems to be random.

What steps can reproduce the bug?

Uploaded thread: 019d9646-3cfb-7ba3-8192-3a35da7c81ae

What is the expected behavior?

Not getting stuck in an echo loop.

Additional information

No response

extent analysis

TL;DR

Investigate the uploaded thread 019d9646-3cfb-7ba3-8192-3a35da7c81ae to identify the cause of the echo loop issue.

Guidance

  • Review the thread's conversation history to check for any patterns or triggers that might be causing the echo loop.
  • Verify if the issue is specific to the gpt-5.4 model or if it occurs with other models as well.
  • Check the Codex CLI documentation for any known issues or limitations related to echo loops or thread uploads.
  • Test the same thread with a different model or version to see if the issue persists.

Notes

The issue seems to be intermittent and random, which might make it challenging to reproduce and debug. More information about the thread's content and the exact steps taken before the issue occurred could be helpful in identifying the root cause.

Recommendation

Apply workaround: Try uploading the thread with a different model or version to see if the issue persists, as this might help identify if the problem is model-specific or a more general issue with the Codex CLI.

Vote matrix · Quick signals

Works
Did the solution work? Tap to confirm.
Easy Fix
Was it a quick fix?
Time Saver
Did it save you time?
Blocking
Was it severely blocking?
Common Issue
Are others likely hitting this too?
Flaky / Intermittent
Is it intermittent?
Verified / Reproducible
Can you reproduce it reliably?
Loading…

Still need to ship something?

×6

Another batch ranked right after the header list — different links, same matching logic.

Back to top recommendations

TRENDING

codex - 💡(How to fix) Fix Codex gets stuck in a weird echo loop sometimes [2 comments, 3 participants]