Anthropic incident

Elevated errors on Claude Opus 4.7

Major Resolved View vendor source →

Anthropic experienced a major incident on May 12, 2026 affecting claude.ai and Claude API (api.anthropic.com) and 1 more component, lasting 19m. The incident has been resolved; the full update timeline is below.

Started
May 12, 2026, 11:38 PM UTC
Resolved
May 12, 2026, 11:58 PM UTC
Duration
19m
Detected by Pingoru
May 12, 2026, 11:38 PM UTC

Affected components

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

Update timeline

  1. identified May 12, 2026, 11:38 PM UTC

    The issue has been identified and a fix is being implemented.

  2. monitoring May 12, 2026, 11:51 PM UTC

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

  3. resolved May 12, 2026, 11:58 PM UTC

    This incident has been resolved.