GitHub Copilot failures

Resolved

On January 13th, 2026, between 09:25 UTC and 10:11 UTC, GitHub Copilot experienced unavailability. During this window, error rates averaged 18% and peaked at 100% of service requests, leading to an outage of chat features across Copilot Chat, VS Code, JetBrains IDEs, and other Copilot-dependent products. This incident was triggered by a configuration error during a model update. We mitigated the incident by rolling back this change. However, a second recovery phase lasted until 10:46 UTC, due to unexpected latency with the GPT 4.1 model. To prevent recurrence, we are investing in new monitors and more robust testing environments to reduce further misconfigurations, and to improve our time to detection and mitigation of future issues.

Investigating

Copilot is operating normally.

Investigating

We are seeing recovery in the GPT-4.1 model. We continue to monitor for full recovery.

Investigating

We are seeing continued recovery across Copilot services but continue to see issues with the GPT-4.1 model that we are investigating.

Investigating

We are seeing continued recovery across Copilot services but continue to see issues with the GPT-4.1 model that we are investigating.

Investigating

We have identified what we believe to be a configuration issue that may explain the issue. We have rolled back this change and are starting to see signs of recovery.

Investigating

We are investigating an issue that is causing failures in all Copilot requests.

Investigating

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

Investigating

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