Elevated errors on Claude Opus 5 and Haiku 4.5
Jul 27, 13:39 UTCJul 27, 14:36 UTC
Duration
57m
Impact
Minor
Root cause
Not disclosed
Anthropic, 90 days
94 incidents
Affected
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
Final update
As of 7:34 PST / 14:34 UTC the errors have returned to baseline.
Timeline
- Resolved · Jul 27, 14:36 UTC
As of 7:34 PST / 14:34 UTC the errors have returned to baseline.
- Investigating · Jul 27, 14:04 UTC
Haiku 4.5 is also returning errors.
- Investigating · Jul 27, 13:42 UTC
We are currently investigating this issue.
- Investigating · Jul 27, 13:41 UTC
We are continuing to investigate this issue.
- Investigating · Jul 27, 13:39 UTC
We are currently investigating this issue.
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.