Resolved after 41 minutes, affecting Copilot AI Model Providers, on October 23, 2026.
Between 23:28 and 00:23 UTC on October 27, 2026, GitHub Copilot experienced degradation affecting Grok 4.6 and Grok 4.7 models. Users encountered elevated error rates when using these models. The degradation was caused by an issue with an upstream model provider. GitHub engineers detected the issue through automated monitoring and coordinated with the provider. Our automated model-warning system activated in-product warnings for affected models during the incident. Service returned to normal after the provider implemented a mitigation.
Affected components
Update timeline
- investigating Oct 23, 2026, 11:41 PM UTC
We are investigating reports of degraded performance for Copilot AI Model Providers
- investigating Oct 23, 2026, 11:42 PM UTC
We are experiencing degraded availability for the Grok 4.6 and Grok 4.7 models in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot.
- monitoring Oct 24, 2026, 12:23 AM UTC
The degradation affecting Copilot AI Model Providers has been mitigated. We are monitoring to ensure stability.
- resolved Oct 24, 2026, 12:23 AM UTC
Between 23:28 and 00:23 UTC on October 27, 2026, GitHub Copilot experienced degradation affecting Grok 4.6 and Grok 4.7 models. Users encountered elevated error rates when using these models. The degradation was caused by an issue with an upstream model provider. GitHub engineers detected the issue through automated monitoring and coordinated with the provider. Our automated model-warning system activated in-product warnings for affected models during the incident. Service returned to normal after the provider implemented a mitigation.
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