Major incident

Anthropic (Claude): Elevated errors for Claude Sonnet 5

Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork

Current status of Anthropic (Claude): Operational — live Anthropic (Claude) status

Timeline

1. Sep 3, 2026, 12:37 UTC
   investigating
   We are investigating elevated errors on requests to Claude Sonnet 5. We will provide an update as soon as possible.
2. Sep 3, 2026, 12:47 UTC
   monitoring
   A fix has been implemented and we are monitoring the results.
3. Sep 3, 2026, 12:56 UTC
   resolved
   This incident has been resolved.

Updates as published by Anthropic (Claude) (original).