GitHub: Claude Opus 4 is experiencing degraded performance
Timeline of updates
- resolved
On September 24th, 2025, between 08:02 UTC and 09:11 UTC the Copilot service was degraded for Claude Opus 4 and Claude Opus 4.1 requests. On average, 22% of requests failed for Claude Opus 4 and 80% of requests for Claude Opus 4.1. This was due to an upstream provider returning elevated errors on Claude Opus 4 and Opus 4.1. We mitigated the issue by directing users to select other models and by monitoring recovery. To resolve the issue, we are expanding failover capabilities by integrating with additional infrastructure providers.
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 2025-09-24 09:08 UTC, resolved after 10 min, 1 update(s).
- Title
- Claude Opus 4 is experiencing degraded performance
- Vendor
- GitHub
- Date
- URL
- https://rewindex.com/company/github/incidents/nv48dwqdzd54
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