GitHub Enterprise Cloud EU incident
EU - Disruption with Gemini 2.5 Pro and Gemini 2.0 Flash in Copilot
GitHub Enterprise Cloud EU experienced a minor incident on September 29, 2025, lasting 32m. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Sep 29, 2025, 06:39 PM UTC
We are currently investigating this issue.
- investigating Sep 29, 2025, 06:40 PM UTC
We are experiencing degraded availability for the Gemini 2.5 Pro & Gemini 2.0 Flash models 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.
- investigating Sep 29, 2025, 07:12 PM UTC
The upstream model provided has resolved the issue and we are seeing full availability for Gemini 2.5 Pro and Gemini 2.0 Flash.
- resolved Sep 29, 2025, 07:12 PM UTC
On September 29, 2025, between 17:53 and 18:42 UTC, the Copilot service experienced a degradation of the Gemini 2.5 model due to an issue with our upstream provider. Approximately 24% of requests failed, affecting 56% of users during this period. No other models were impacted. GitHub notified the upstream provider of the problem as soon as it was detected. The issue was resolved after the upstream provider rolled back a recent change 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.