Elevated errors on Claude Fable 5 and Claude Mythos 5

Incident Report for Claude

Resolved

This incident has been resolved.
Posted Jul 03, 2026 - 22:06 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Jul 03, 2026 - 22:00 UTC

Identified

The issue has been identified and a fix is being implemented.
Posted Jul 03, 2026 - 21:55 UTC

Investigating

We are currently investigating this issue.
Posted Jul 03, 2026 - 21:54 UTC
This incident affected: claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code, and Claude Cowork.