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Claude change history: Elevated errors for multiple models

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22Major incident
When (UTC)ChangeKind
Major incident: Elevated errors for multiple modelsHN
Claude reported a major incident with elevated errors affecting multiple models across claude.ai, Claude API (api.anthropic.com), Claude Code and Claude Cowork. It started at 2026-09-03 13:26 UTC and was resolved at 2026-09-03 16:23 UTC, lasting 2 h 57 min. A fix was deployed; the vendor said customer impact ended at 16:16 UTC.
Major incident