identified
We have identified the cause of elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
Degraded performance for Claude Mythos 5, Claude Fable 5, and Claude Opus 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.