Elevated errors for Claude Sonnet 5.5

Official status page Resolved

Started

Oct 27, 2026 · 15:09 UTC

Resolved

Oct 27, 2026 · 15:50

Lasted

41 min

Affected components

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

Updates

1. Resolved

   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.

   Oct 27, 2026 · 15:50 UTC
2. Identified

   We are investigating elevated errors on requests to Claude Sonnet 5.5. We will provide an update as soon as possible.

   Oct 27, 2026 · 15:09 UTC

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