Incident report · read from OpenAI's status page

OpenAI incident: Elevated latency in the Responses API

Resolved after 20 h 37 m (31 Aug 2026 22:27 – 1 Sep 2026 19:05 UTC), impact minor, affecting Responses.

Timeline

1. 31 Aug 2026 at 22:27 UTC identified

   We have identified an issue causing elevated latency for some Responses API requests. We are working on implementing a mitigation.

2. 31 Aug 2026 at 23:13 UTC monitoring

   We have applied a mitigation and are monitoring recovery.

3. 1 Sep 2026 at 01:46 UTC monitoring

   We have applied the mitigation and are monitoring the recovery.

4. 1 Sep 2026 at 15:15 UTC identified

   We have identified elevated latencies impacting Responses API on the US endpoint.

5. 1 Sep 2026 at 17:36 UTC identified

   We are implementing the mitigation.

6. 1 Sep 2026 at 18:09 UTC monitoring

   We have applied the mitigation and are monitoring the recovery.

7. 1 Sep 2026 at 19:05 UTC resolved

   All impacted services have now fully recovered.

Affected components

• APIs · Responses: degraded for 20 h 37 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 8 Sep 2026 at 15:05 UTC.

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