Anthropic incident

Elevated errors on Claude Opus 4.7

Major Resolved View vendor source →

Anthropic experienced a major incident on May 27, 2026 affecting claude.ai and Claude API (api.anthropic.com) and 1 more component, lasting 57m. The incident has been resolved; the full update timeline is below.

Started
May 27, 2026, 05:43 AM UTC
Resolved
May 27, 2026, 06:40 AM UTC
Duration
57m
Detected by Pingoru
May 27, 2026, 05:43 AM UTC

Affected components

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

Update timeline

  1. investigating May 27, 2026, 05:43 AM UTC

    We are currently investigating this issue.

  2. monitoring May 27, 2026, 06:01 AM UTC

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

  3. resolved May 27, 2026, 06:40 AM UTC

    This incident has been resolved.