Modelpeers
Claude Mythos 5.1 characterClaude Opus 4.8 characterClaude Opus 5 character

Claude Opus 5, Opus 4.8, Mythos 5.1

11 products from Anthropic

Incident · 2 h 57 min

Anthropic reported elevated errors across several Claude models for about 3 hours

Some requests to Claude Opus 5, Opus 4.8 and Mythos 5.1 failed 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 Opus 5, Claude Opus 4.8, Claude Opus 4.6, Claude Fable 5.1 and 7 more while it lasted.
What to do:
Retry any request that failed during the incident.

Source

"The issue affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 has been resolved. Impact has ended as of 9:16 PT / 16:16 UTC."

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

Published

Open the sourcestatus.claude.com

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