Major incident

Anthropic (Claude): Elevated errors for multiple models

Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork

Current status of Anthropic (Claude): Operational — live Anthropic (Claude) status

Timeline

1. Aug 24, 2026, 05:06 UTC
   investigating
   We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, and Claude Opus 4.8. We will provide an update as soon as possible.
2. Aug 24, 2026, 05:27 UTC
   identified
   We have identified the cause of elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, and other Claude models and are working on a fix. We will provide an update as soon as possible.
3. Aug 24, 2026, 06:42 UTC
   identified
   We are continuing to work to resolve issues causing elevated requests on multiple models. We will provide an update as soon as possible.
4. Aug 24, 2026, 07:47 UTC
   identified
   At this time, we have seen errors stabilize on Opus 5 and Fable 5, and are working to fully resolve success rates on all affected models. We will provide an update as soon as possible.
5. Aug 24, 2026, 08:30 UTC
   resolved
   This issue has been resolved. From 9:50pm PT / 04:50 UTC through 00:36am PT / 07:36 UTC, users saw elevated errors on requests to Claude models, including Claude Opus 5 and Fable 5.

Updates as published by Anthropic (Claude) (original).