Elevated error rates for Sonnet 5

Incident Report for Claude

Resolved

This incident has been resolved.
Posted Jul 17, 2026 - 18:27 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Jul 17, 2026 - 18:22 UTC

Update

We are continuing to investigate this issue.
Posted Jul 17, 2026 - 18:13 UTC

Investigating

We are currently investigating this issue.
Posted Jul 17, 2026 - 18:12 UTC
This incident affected: claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code, and Claude Cowork.