Claude 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
68 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.
More from GitHub
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2310:11 UTC | Incident across several services | minor | Ongoing |
| Sep 2022:13 UTC | Incident with Pull Requests | minor | 1h 9m |
| Sep 1720:59 UTC | Elevated rate of errors for OpenAI models provided by Copilot | minor | 50m |
| Sep 1607:20 UTC | Degradation with Gemini 3.8 Flash | major | 10h 28m |
| Sep 1519:11 UTC | Disruption with some GitHub services | minor | 49m |
| Sep 1509:47 UTC | Disruption with some GitHub services | minor | 1h 30m |
Also caused by third-party dependency
All| Started | Vendor | Incident | Impact | Duration |
|---|---|---|---|---|
| Sep 1609:48 UTC |  DigitalOcean | Support Portal Service DisruptionDigitalOcean | minor | 11h 21m |
| Sep 1608:31 UTC |  Cloudflare | Support Helpdesk Availability IssuesCloudflare | minor | 6h 27m |
| Sep 417:03 UTC |  Grafana Labs | Degradation of Hosted Grafana in US Central RegionGrafana Labs | major | 3h 39m |
| Sep 416:05 UTC |  Expo | Elevated Linux worker queue timesExpo | major | 15h 4m |
| Sep 115:25 UTC | Grafana Labs | Investigating issues in US Central (prod-us-central-0, prod-us-central-5)Grafana Labs | minor | 4h 54m |
| Aug 3106:26 UTC |  Fly.io | Packet loss in ORDFly.io | minor | 1h 44m |
From vendors' own status pages and disclosures. Times as reported. Logos via logo.dev; trademarks belong to their owners.