GitHub Status

Resolved: On May 28th, 2026, between approximately 18:27 and 20:41 UTC, the GitHub Copilot service was degraded due to an issue with the Responses API of an upstream provider affecting the GPT-5.2, GPT-5.3-Codex, GPT-5.4, and GPT-5.5 models. Requests routed to these models via the Responses API returned elevated error rates, which also affected Copilot coding agent and Copilot code review. No other models were impacted.

We mitigated the incident by shifting traffic away from the affected models while the upstream provider deployed a fix.

GitHub is working to improve automated failover for the affected models and strengthen monitoring to prevent similar incidents in the future.

Investigating: Open AI models are currently unavailable. We are shifting requests to other models to reduce impact.

Investigating: We are investigating errors with Copilot requests using OpenAI models

Investigating: Copilot is experiencing degraded performance. We are continuing to investigate.

Investigating: We are investigating reports of impacted performance for some GitHub services.

Resolved: This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

Monitoring: The degradation affecting Webhooks has been mitigated. We are monitoring to ensure stability.

Investigating: We are investigating reports of degraded performance for Webhooks