Some Copilot chat models are failing requests

Incident Report for GitHub

Resolved

On June 12, 2025, between 17:55 UTC and 21:07 UTC the GitHub Copilot service was degraded and experienced unavailability for Gemini models and reduced availability for Claude models. Users experienced significantly elevated error rates for code completions, slow response times, timeouts, and chat functionality interruptions across VS Code, JetBrains IDEs, and GitHub Copilot Chat. This was due to an outage affecting one of our model providers.

We mitigated the incident by temporarily disabling the affected provider endpoints to reduce user impact.

We are working to update our incident response playbooks for infrastructure provider outages and improve our monitoring and alerting systems to reduce our time to detection and mitigation of issues like this one in the future.

Posted Jun 12, 2025 - 21:07 UTC

Update

All impacted chat models have recovered, and users should no longer experience reduced availability.

Posted Jun 12, 2025 - 21:07 UTC

Update

We are seeing recovery in success rates for impacted Claude models (Sonnet 4 and Opus 4), and limited recovery in Gemini models (2.5. Pro and 2.0 Flash). We will continue to monitor and provide updates until full recovery.

Posted Jun 12, 2025 - 20:39 UTC

Update

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

Posted Jun 12, 2025 - 20:21 UTC

Update

Claude Sonnet 4 and Opus 4 models continue to have degraded availability in Copilot Chat, VS Code, and other Copilot products. Gemini Pro 2.5 and 2.0 Flash are currently unavailable. Our upstream model provider has indicated that they have identified the problem and are applying mitigations.

Posted Jun 12, 2025 - 20:05 UTC

Update

Gemini (2.5 Pro and 2.0 Flash) and Claude (Sonnet 4 and Opus 4) chat models in Copilot are still experiencing reduced availability. We are actively communicating with our upstream model provider to resolve the issue and restore full service. We will provide another update by 20:15 UTC.

Posted Jun 12, 2025 - 19:14 UTC

Update

We redirected requests for Claude 3.7 Sonnet to additional partners and users should see recovery when using that model. We still are experiencing degraded availability for the Gemini (2.5 Pro, 2.0 Flash) and Claude (Sonnet 4, Opus 4) models in Copilot Chat, VS Code and other Copilot products.

Posted Jun 12, 2025 - 18:37 UTC

Update

We are experiencing degraded availability for the Gemini (2.5 Pro, 2.0 Flash) and Claude (Sonnet 3.7, Sonnet 4, Opus 4) 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.

Posted Jun 12, 2025 - 18:23 UTC

Investigating

We are currently investigating this issue.

Posted Jun 12, 2025 - 18:19 UTC

This incident affected: Copilot.