Incident report · read from Anthropic's status page

Anthropic incident: Degraded performance on Claude Sonnet 5

Resolved after 46 m (31 Jul 2026, 06:18–07:04 UTC), impact minor, affecting Claude Cowork, Claude API (api.anthropic.com), claude.ai and Claude Code.

Timeline

1. 31 Jul 2026 at 06:18 UTC investigating

   We are currently investigating this issue.

2. 31 Jul 2026 at 07:04 UTC resolved

   This incident has been resolved.

Affected components

• Claude Cowork: degraded for 46 m
• Claude API (api.anthropic.com): degraded for 46 m
• claude.ai: degraded for 46 m
• Claude Code: degraded for 46 m

Source

Anthropic's own report of this incident, on Anthropic's status page. This page is a record of Anthropic's own report; where the two disagree, theirs is right.

Last checked 8 Sep 2026 at 16:20 UTC.

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