GitHub: Incident with Copilot and Claude Sonnet 4
Timeline of updates
- resolved
On July 22nd, 2025, between 17:58 and 18:35 UTC, the Copilot service experienced degraded availability for Claude Sonnet 4 requests. 4.7% of Claude 4 requests failed during this time. No other models were impacted. The issue was caused by an upstream problem affecting our ability to serve requests. We mitigated by rerouting capacity and monitoring recovery. We are improving detection and mitigation to reduce future impact.
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 2025-07-22 18:35 UTC, resolved after 14 min, 1 update(s).
- Title
- Incident with Copilot and Claude Sonnet 4
- Vendor
- GitHub
- Date
- URL
- https://rewindex.com/company/github/incidents/bq1m45stqm8s
GitHub profileRecent GitHub incidentsAll outages on July 22, 2025GitHub in July 2025MarkdownJSON