Resolved after 41 minutes, affecting claude.ai and Claude API (api.anthropic.com) and 1 more, on October 27, 2026.
The issue affecting claude.ai, the Claude API, Claude Code, and Claude Cowork has been resolved. Impact occurred from 07:42 PT / 14:42 UTC to 08:17 PT / 15:17 UTC.
Affected components
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
Update timeline
- identified Oct 27, 2026, 03:09 PM UTC
We are investigating elevated errors on requests to Claude Sonnet 5.5. We will provide an update as soon as possible.
- resolved Oct 27, 2026, 03:50 PM UTC
The issue affecting claude.ai, the Claude API, Claude Code, and Claude Cowork has been resolved. Impact occurred from 07:42 PT / 14:42 UTC to 08:17 PT / 15:17 UTC.
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