Elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5

Official Claude incident record with affected components, status, timeline updates, and links back to relevant status checks.

Affected components

These are the official Claude components attached to this incident. Component data can help separate a web app issue from an API, Console, or Claude Code issue.

claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork

Official timeline

Updates are shown from the official Claude status incident record.

resolvedJul 25, 07:44 PM UTC

This incident has been resolved.

identifiedJul 25, 06:44 PM UTC

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

investigatingJul 25, 06:40 PM UTC

We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Haiku 4.5. We will provide an update as soon as possible.