GitHub Enterprise Cloud EU incident

EU - Incident with Copilot Grok Code Fast 1

Minor Resolved View vendor source →

GitHub Enterprise Cloud EU experienced a minor incident on December 15, 2025 affecting Copilot, lasting 1h 33m. The incident has been resolved; the full update timeline is below.

Started
Dec 15, 2025, 02:12 PM UTC
Resolved
Dec 15, 2025, 03:45 PM UTC
Duration
1h 33m
Detected by Pingoru
Dec 15, 2025, 02:12 PM UTC

Affected components

Copilot

Update timeline

  1. investigating Dec 15, 2025, 02:12 PM UTC

    We are investigating reports of degraded performance for Copilot

  2. investigating Dec 15, 2025, 02:13 PM UTC

    We are experiencing degraded availability for the Grok Code Fast 1 model in Copilot Chat, VS Code and other Copilot products. This is due to an issue with an upstream model provider. We are working with them to resolve the issue. Other models are available and working as expected.

  3. investigating Dec 15, 2025, 03:06 PM UTC

    We are continuing to work with our provider on resolving the incident with Grok Code Fast 1. Users can expect some requests to intermittently fail until all issues are resolved.

  4. resolved Dec 15, 2025, 03:45 PM UTC

    On Dec 15th, 2025, between 14:00 UTC and 15:45 UTC the Copilot service was degraded for Grok Code Fast 1 model. On average, 4% of the requests to this model failed due to an issue with our upstream provider. No other models were impacted. The issue was resolved after the upstream provider fixed the problem that caused the disruption. GitHub will continue to enhance our monitoring and alerting systems to reduce the time it takes to detect and mitigate similar issues in the future.