Claude change history

4 incident changes

Normal progress
08:03Incident
Incident updateElevated errors for Claude Sonnet 5.5 and other modelsHN
Normal progress
06:43Incident
Incident updateElevated errors for Claude Sonnet 5.5 and other modelsHN
Normal progress
06:34Incident
Incident updateElevated errors for Claude Sonnet 5.5HN
Outage
06:14Major incident
Elevated errors for multiple modelsHN
Claude reported a major incident starting 2026-10-25 06:14 UTC: elevated request errors for Claude Mythos 5.1, Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5.5, and Claude Haiku 5.5, affecting claude.ai, Claude API - api.anthropic.com, Claude Code, and Claude Cowork. It remained under investigation and open when archived, 0 min at the last update.