GitHub: Incident with Grok Copilot AI Model Provider

Impact: minorStatus: resolvedStarted 2026-09-03 14:17 UTCResolved 2026-09-03 17:11 UTC (2.9 h)5 updatesSource: stspg.io

Affected components: Copilot AI Model Providers

Discussed on Hacker News

Claude outage – Resolved (opens in new tab)
205 points · 151 comments · posted 2026-09-03 13:29 UTC · posted 48 min before the vendor’s first update

Threads are matched automatically by vendor name and timing; points and comments refresh every 30 minutes. Method and limits.

investigating2026-09-03 14:17 UTC
We are investigating reports of degraded performance for Copilot AI Model Providers
investigating2026-09-03 14:20 UTC
We are experiencing degraded availability for the Grok 4.6 model 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.<br />
investigating2026-09-03 14:22 UTC
The Grok 4.5 model has degraded availability as well. We are working with the upstream provider to resolve the issue.
investigating2026-09-03 17:11 UTC
The issues with our upstream model provider have been resolved, and Grok models are once again available in Copilot products and IDE surfaces.<br />We will continue monitoring to ensure stability, but mitigation is complete.
resolved2026-09-03 17:11 UTC
Between 13:22 and 17:11 UTC on September 03, 2026, GitHub Copilot experienced degradation affecting several Grok models, including Grok 4.5 and Grok 4.6. Users encountered elevated error rates, but other models were not affected. The degradation was caused by an issue with an upstream model provider. GitHub engineers detected the issue through automated monitoring, displayed in-product warnings for the affected models, and coordinated with the provider. Service returned to normal after the provider implemented a mitigation.