Elevated errors on Claude Opus 4.5 and Sonnet 4.5
Feb 4, 10:13 UTCFeb 4, 11:11 UTC
Duration
58m
Impact
Major
Root cause
Not disclosed
Anthropic, 90 days
94 incidents
Affected
Not listed by the vendor.
Final update
The issue has been fully resolved. The timelines are: * 02:00 PT / 10:00 UTC to 02:35 PT / 10:35 UTC * 02:54 PT / 10:54 UTC to 03:01 PT / 11:01 UTC
Timeline
- Resolved · Feb 4, 11:11 UTC
The issue has been fully resolved. The timelines are: * 02:00 PT / 10:00 UTC to 02:35 PT / 10:35 UTC * 02:54 PT / 10:54 UTC to 03:01 PT / 11:01 UTC
More from Anthropic
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2200:57 UTC | Elevated errors for multiple models | major | 1h 38m |
| Sep 1616:18 UTC | Issues with Google Play subscriptions | none | 33m |
| Sep 1509:48 UTC | Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1 | major | 1h 26m |
| Sep 1114:19 UTC | Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1 | major | 17m |
| Sep 1021:43 UTC | Elevated latency on the Claude API for some users | minor | 1h 41m |
| Sep 1015:54 UTC | Degraded functionality for Claude Cowork on Windows | major | 4d 3h |
Sources: vendors' own status pages, published postmortems and SEC 8-K Item 1.05 filings, read daily. Times as reported. Logos via logo.dev; trademarks belong to their owners.