Incident report · read from OpenAI's status page

OpenAI incident: 1% of ChatGPT Work (mobile/web) turns are failing for existing threads

Resolved after 9 h 34 m (11 Sep 2026 16:22 – 12 Sep 2026 01:57 UTC), impact minor, affecting ChatGPT Work.

Timeline

1. 11 Sep 2026 at 16:22 UTC investigating

   We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation.

2. 11 Sep 2026 at 17:16 UTC identified

   We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation.

3. 11 Sep 2026 at 17:17 UTC investigating

   We are investigating the issue for the listed services.

4. 11 Sep 2026 at 21:51 UTC monitoring

   We have applied the mitigation and are monitoring the recovery.

5. 12 Sep 2026 at 01:38 UTC monitoring

   We have applied the mitigation and are monitoring the recovery.

6. 12 Sep 2026 at 01:57 UTC resolved

   All impacted services have now fully recovered.

Affected components

• ChatGPT · ChatGPT Work: degraded for 9 h 34 m

Source

OpenAI's own report of this incident, on OpenAI's status page. This page is a record of OpenAI's own report; where the two disagree, theirs is right.

Last checked 12 Sep 2026 at 17:12 UTC.

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