Anthropic incident

Elevated errors on Claude Opus 4.7

Minor Resolved View vendor source →

Anthropic experienced a minor incident on May 20, 2026 affecting claude.ai and Claude API (api.anthropic.com) and 1 more component, lasting 1h 21m. The incident has been resolved; the full update timeline is below.

Started
May 20, 2026, 02:43 PM UTC
Resolved
May 20, 2026, 04:04 PM UTC
Duration
1h 21m
Detected by Pingoru
May 20, 2026, 02:43 PM UTC

Affected components

claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork

Update timeline

  1. investigating May 20, 2026, 02:43 PM UTC

    We are currently investigating this issue.

  2. monitoring May 20, 2026, 03:56 PM UTC

    A fix has been implemented and we are monitoring the results.

  3. resolved May 20, 2026, 04:04 PM UTC

    This incident has been resolved.