OpenAI experienced a minor incident on September 30, 2026 affecting Responses and Chat Completions, lasting —. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Sep 30, 2026, 05:05 PM UTC
Status: Identified We have identified that users are experiencing elevated latency for the impacted services. We are working on implementing a mitigation. Affected components Responses (Degraded performance)
- identified Sep 30, 2026, 05:13 PM UTC
Status: Identified We have identified that users are experiencing elevated latency for the impacted services. We are working on implementing a mitigation. Affected components Chat Completions (Degraded performance) Responses (Degraded performance)
- identified Sep 30, 2026, 05:51 PM UTC
Status: Identified We have implemented an initial mitigation and are seeing improvements in API latency. We are continuing to investigate the scope of the issue and apply additional mitigations as needed. Some requests to the Responses and Chat Completions APIs may still experience elevated latency or timeouts. Affected components Chat Completions (Degraded performance) Responses (Degraded performance)
- monitoring Sep 30, 2026, 06:21 PM UTC
Status: Monitoring We have applied the mitigation and are monitoring the recovery. Affected components Chat Completions (Degraded performance) Responses (Degraded performance)
- resolved Sep 30, 2026, 08:35 PM UTC
Status: Resolved All impacted services have now fully recovered. Affected components Chat Completions (Operational) Responses (Operational)