Degraded performance for Claude Opus 5, Claude Sonnet 5
Aug 17, 13:56 UTCAug 17, 15:29 UTC
Duration
1h 33m
Impact
Minor
Root cause
Not disclosed
Anthropic, 90 days
94 incidents
Affected
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
Final update
This incident has been resolved.
Timeline
- Resolved · Aug 17, 15:29 UTC
This incident has been resolved.
- Monitoring · Aug 17, 14:39 UTC
A fix has been implemented and we are monitoring the results.
- Investigating · Aug 17, 14:25 UTC
Claude Opus 5 is operational. Claude Sonnet 5 is degraded. We are investigating.
- Investigating · Aug 17, 13:56 UTC
We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.
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.