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Anthropic · AIJul 31, 2026, 06:18 UTC 3 months ago

Degraded performance on Claude Sonnet 5

MinorNot disclosedUpdated 47d ago
Jul 31, 06:18 UTCJul 31, 07:04 UTC
Duration
47m
Impact
Minor
Root cause
Not disclosed
Anthropic, 90 days
49 incidents
Affected
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
Status page

Final update

This incident has been resolved.

Timeline

  1. Resolved · Jul 31, 07:04 UTC
    This incident has been resolved.
  2. Investigating · Jul 31, 06:18 UTC
    We are currently investigating this issue.

More from Anthropic

Full history
MinorNov 8, 08:28 UTC
Degraded performance for Claude Fable 5.1lasted 26m
MinorOct 28, 16:19 UTC
Elevated errors affecting the Google Calendar connectorlasted 3h 46m
MinorOct 28, 03:59 UTC
Elevated errors affecting the Gmail connectorlasted 1h 49m
MajorOct 27, 15:09 UTC
Elevated errors for Claude Sonnet 5.5lasted 41m
MajorOct 27, 09:14 UTC
Elevated errors for Claude Sonnet 5.5lasted 42m
MajorOct 25, 08:17 UTC
Elevated errors for Claude Fable 5.1lasted 32m