GitHub Enterprise Cloud EU experienced a minor incident on October 3, 2025 affecting Copilot, lasting 1h 5m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 03, 2025, 02:41 AM UTC
We are investigating reports of degraded performance for Copilot
- investigating Oct 03, 2025, 02:42 AM UTC
We’re seeing degraded experience across Anthropic models. We’re working with our partners to restore service.
- investigating Oct 03, 2025, 03:04 AM UTC
The upstream provider is implementing a fix. Services are recovering. We are monitoring the situation.
- investigating Oct 03, 2025, 03:47 AM UTC
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.
- resolved Oct 03, 2025, 03:47 AM UTC
On October 3rd, between approximately 10:00 PM and 11:30 Eastern, the Copilot service experienced degradation due to an issue with our upstream provider. Users encountered elevated error rates when using the following Claude models: Claude Sonnet 3.7, Claude Opus 4, Claude Opus 4.1, Claude Sonnet 4, and Claude Sonnet 4.5. No other models were impacted. The issue was mitigated by temporarily disabling affected endpoints while our provider resolved the upstream issue. GitHub is working with our provider to further improve the resiliency of the service to prevent similar incidents in the future.