Modelpeers
Claude Cowork characterClaude Code character

Claude Mythos 5, Fable 5, Sonnet 5

7 products from Anthropic

Incident · 1 h 35 min

Anthropic reported elevated errors on three Claude models for about an hour and a half

Some requests to Claude Mythos 5, Claude Fable 5 and Claude Sonnet 5 returned errors on claude.ai, the Claude API, Claude Code and Claude Cowork, which Anthropic marked as a partial outage. It's resolved.

Who is affected:
People using Claude Sonnet 5, Claude Fable 5, Claude Mythos 5, Claude and 3 more while it lasted.
What to do:
Retry any request that failed during the incident.

Source

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

Claude status page (status.claude.com) incident history

Published

Open the sourcestatus.claude.com

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