Elevated errors for Claude Sonnet 5.5

Incident Report for Claude

Resolved

The issue affecting Claude services has been resolved.
Posted Oct 27, 2026 - 09:56 UTC

Monitoring

A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.
Posted Oct 27, 2026 - 09:38 UTC

Investigating

We are investigating elevated errors on requests to Claude Sonnet 5.5. We will provide an update as soon as possible.
Posted Oct 27, 2026 - 09:14 UTC
This incident affected: claude.ai, Claude API (api.anthropic.com), Claude Code, and Claude Cowork.