OpenAI incident

Elevated error rates with GPT 5.5

Resolved after 1 hour 48 minutes, affecting Responses and Chat Completions, on May 11, 2026.

monitoring May 11, 2026, 05:04 PM UTC

We have applied the mitigation and are monitoring the recovery.

Started
May 11, 2026, 04:11 PM UTC
Resolved
May 11, 2026, 05:59 PM UTC
Duration
1h 48m
Detected by Pingoru
May 11, 2026, 04:11 PM UTC

Affected components

ResponsesChat Completions

Update timeline

  1. investigating May 11, 2026, 04:11 PM UTC

    We are investigating the issue for the listed services.

  2. identified May 11, 2026, 04:35 PM UTC

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

  3. monitoring May 11, 2026, 05:04 PM UTC

    We have applied the mitigation and are monitoring the recovery.

  4. resolved May 11, 2026, 05:59 PM UTC

    All impacted services have now fully recovered.

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