Outage in GitHub

Copilot's GPT-5.1 model has degraded performance

Resolved Minor

January 14, 2026 - Started about 2 months ago - Lasted about 1 hour
Official incident page

Incident Report

We are investigating reports of degraded performance for Copilot

Components affected

GitHub Copilot

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Latest Updates ( sorted recent to last )

RESOLVED about 2 months ago - at 01/14/2026 10:52AM

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.

INVESTIGATING about 2 months ago - at 01/14/2026 10:32AM

We are continuing to investigate issues with the GPT-5.1 model. We are also seeing an increase in failures for Copilot Code Reviews.

INVESTIGATING about 2 months ago - at 01/14/2026 09:53AM

We are continuing to investigate issues with the GPT-5.1 model with our model provider. Uses of other models are not impacted.

INVESTIGATING about 2 months ago - at 01/14/2026 09:26AM

Copilot is experiencing degraded performance when using the GPT-5.1 model. We are investigating the issue.

INVESTIGATING about 2 months ago - at 01/14/2026 09:24AM

We are investigating reports of degraded performance for Copilot

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