Elevated errors for Claude Opus 5.5

Incident Report for Claude

Resolved

The issue affecting Claude Opus 5.5 has been resolved.

Posted Oct 06, 2026 - 12:43 UTC

Identified

We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.

Posted Oct 06, 2026 - 12:37 UTC

Investigating

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

Posted Oct 06, 2026 - 12:24 UTC

This incident affected: claude.ai, Claude API (api.anthropic.com), Claude Code, and Claude Cowork.