Incidentsby GlyphClaude Opus 4.5 model experiencing degraded performance
Jan 14, 10:56 UTCJan 14, 12:23 UTC
Duration
1h 27m
Impact
Minor
Root cause
Dependency
GitHub, 90 days
69 incidents
Affected
Not listed by the vendor.
Final update
On January 14th, 2026, between approximately 10:20 and 11:25 UTC, the Copilot service experienced a degradation of the Claude Opus 4.5 model due to an issue with our upstream provider. During this time period, users encountered a 4.5% error rate when using Claude Opus 4.5. No other models were impacted. The issue was resolved by a mitigation put in place by our provider. GitHub is working with our provider to further improve the resiliency of the service to prevent similar incidents in the future.
Timeline
- Resolved · Jan 14, 12:23 UTC
On January 14th, 2026, between approximately 10:20 and 11:25 UTC, the Copilot service experienced a degradation of the Claude Opus 4.5 model due to an issue with our upstream provider. During this time period, users encountered a 4.5% error rate when using Claude Opus 4.5. No other models were impacted. The issue was resolved by a mitigation put in place by our provider. GitHub is working with our provider to further improve the resiliency of the service to prevent similar incidents in the future.