Modelpeers
Claude Cowork characterClaude Code characterClaude Opus 5 character

Claude Opus 5, Sonnet 5, Haiku 4.5

9 products from Anthropic

Incident · 2 h 41 min

Anthropic reported elevated errors on several Claude models for about 2 and a half hours

Some requests to Claude Opus 5, Claude Sonnet 5 and Claude Haiku 4.5, among other models, returned errors on claude.ai, the Claude API, Claude Code and Claude Cowork. Anthropic marked these as degraded performance. It's resolved.

Who is affected:
People using Claude Opus 5, Claude Sonnet 5, Claude Haiku 4.5, Claude Fable 5 and 5 more while it lasted.
What to do:
Retry any request that failed during the incident.

Source

"The issue affecting Claude Opus 5 has been resolved. Impact occurred from 16:11 to 18:23 UTC."

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

Published

Open the sourcestatus.claude.com

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