Anthropic incident

Claude Sonnet 4.5 error spike

Resolved after 1 hour 11 minutes, affecting claude.ai and Claude Console (platform.claude.com) and 1 more, on April 20, 2026.

monitoring Apr 20, 2026, 06:41 AM UTC

We are continuing to monitor for any further issues.

Started
Apr 20, 2026, 06:14 AM UTC
Resolved
Apr 20, 2026, 07:25 AM UTC
Duration
1h 11m
Detected by Pingoru
Apr 20, 2026, 06:14 AM UTC

Affected components

claude.aiClaude Console (platform.claude.com)Claude API (api.anthropic.com)Claude CodeClaude CoworkClaude for Government

Update timeline

  1. investigating Apr 20, 2026, 06:14 AM UTC

    We are currently investigating this issue.

  2. monitoring Apr 20, 2026, 06:38 AM UTC

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

  3. monitoring Apr 20, 2026, 06:41 AM UTC

    We are continuing to monitor for any further issues.

  4. resolved Apr 20, 2026, 07:25 AM UTC

    This incident has been resolved.

Your product runs on more than Anthropic

Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.

Add your stack →