GitHub: Incident with Copilot Grok Code Fast 1
Timeline of updates
- resolved
On Dec 15th, 2025, between 14:00 UTC and 15:45 UTC the Copilot service was degraded for Grok Code Fast 1 model. On average, 4% of the requests to this model failed due to an issue with our upstream provider. No other models were impacted. The issue was resolved after the upstream provider fixed the problem that caused the disruption. GitHub will continue to enhance our monitoring and alerting systems to reduce the time it takes to detect and mitigate similar issues in the future.
From GitHub’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on www.githubstatus.com (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by GitHub, started 2025-12-15 14:12 UTC, resolved after 1.6 h, 1 update(s).
- Title
- Incident with Copilot Grok Code Fast 1
- Vendor
- GitHub
- Date
- URL
- https://rewindex.com/company/github/incidents/jcbsbbfd1x9r
GitHub profileRecent GitHub incidentsAll outages on December 15, 2025GitHub in December 2025MarkdownJSON