Codex task stuck or failing: causes and fixes
Is there an outage right now?
Codex official status is operational. If this error persists, it is likely an implementation or environment issue on your side.
Updated: Jul 22, 2026, 12:00 AM UTC
View Codex status →What this error means
Task won't run, fails midway, or returns nothing. Causes: OpenAI-side outage, rate limits, network, or long tasks.
Common causes
- •OpenAI-side outage/latency
- •Rate limit / quota exceeded
- •Unstable network
- •Long/large task
- •Temporary queue backlog
How to fix
- 1.Wait and re-run
- 2.Split the task
- 3.Check your network
- 4.Run at a different time
- 5.Check status at top of page and OpenAI API
When waiting helps (and when it won't)
If OpenAI-side, it recovers over time. If frequent, split tasks and adjust frequency.
Alternatives when Codex is down
FAQ
What causes Codexのタスクが進まない?
Task won't run, fails midway, or returns nothing. Causes: OpenAI-side outage, rate limits, network, or long tasks.
How do I fix Codexのタスクが進まない?
Wait and re-run / Split the task / Check your network / Run at a different time / Check status at top of page and OpenAI API