GitHub Copilot outage on Oct 23, 2026: grok 4.6 and Grok 4.7 Service Issues

Reports during the incident

Every 15 minutes, 22:30 UTC to 01:30 UTC. Grey: normal. Red line: official incident.

22:30 UTC23:41 UTC00:23 UTC01:30 UTC

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GitHub's updates

Quoted from www.githubstatus.com

23:41 UTC
Investigating
We are investigating reports of degraded performance for Copilot AI Model Providers
23:42 UTC
Investigating
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.
00:23 UTC
Monitoring
The degradation affecting Copilot AI Model Providers has been mitigated. We are monitoring to ensure stability.
00:23 UTC
Resolved
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.<br /><br />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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GitHub's updates

23:41 UTC

Investigating

We are investigating reports of degraded performance for Copilot AI Model Providers

23:42 UTC

Investigating

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.

00:23 UTC

Monitoring

The degradation affecting Copilot AI Model Providers has been mitigated. We are monitoring to ensure stability.

00:23 UTC

Resolved

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.<br /><br />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.