Major incident

Anthropic (Claude): Elevated errors across many 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. Jul 30, 2026, 05:57 UTC
   investigating
   We are currently investigating this issue.
2. Jul 30, 2026, 06:26 UTC
   identified
   All models except Opus 5 have recovered. We're working to recover Opus 5 as well.
3. Jul 30, 2026, 07:33 UTC
   identified
   As of 7:32 UTC / 0:32 PT, Opus 5 errors are back to baseline but we're seeing again Sonnet 5's errors up.
4. Jul 30, 2026, 08:06 UTC
   identified
   As of 8:05 UTC / 1:05 PT, Sonnet 5 errors are back to baseline, but we're seeing an increased error rate on Fable 5.
5. Jul 30, 2026, 08:33 UTC
   identified
   As of 01:33 PT / 08:33 UTC we are back to errors across all models.
6. Jul 30, 2026, 10:03 UTC
   monitoring
   As of 2:58 PT / 9:58 UTC the errors are back to baseline.
7. Jul 30, 2026, 10:23 UTC
   monitoring
   We are also investigating issues with Opus 4.7 and Opus 4.5.
8. Jul 30, 2026, 10:48 UTC
   resolved
   This incident has been resolved.

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