Anthropic change history

3 incident changes

Normal progress
08:54Incident
Incident updateElevated errors for Claude Fable 5.1
Normal progress
08:34Incident
Incident updateElevated errors for Claude Fable 5.1
Outage
08:17Major incident
Elevated errors for Claude Fable 5.1
Anthropic reported a major incident involving elevated errors for Claude Fable 5.1 across claude.ai, Claude API - api.anthropic.com, Claude Code and Claude Cowork, starting 2026-10-25 08:17 UTC. It remained open when archived (open for 0 min at the last update); Anthropic said it identified the cause and was working on a fix, without detailing either.