Sonnet 4.6 elevated rate of errors

Incident Report for Claude

Resolved

This incident has been resolved.

Posted Apr 09, 2026 - 08:53 UTC

Identified

The issue has been identified and a fix is being implemented.

Posted Apr 09, 2026 - 08:07 UTC

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