Anthropic incident

Elevated errors on several models

Critical Resolved View vendor source →

Anthropic experienced a critical incident on July 21, 2026 affecting claude.ai and Claude API (api.anthropic.com) and 1 more component, lasting 2h 43m. The incident has been resolved; the full update timeline is below.

Started
Jul 21, 2026, 03:35 PM UTC
Resolved
Jul 21, 2026, 06:18 PM UTC
Duration
2h 43m
Detected by Pingoru
Jul 21, 2026, 03:35 PM UTC

Affected components

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

Update timeline

  1. investigating Jul 21, 2026, 03:35 PM UTC

    We are currently investigating this issue.

  2. identified Jul 21, 2026, 03:51 PM UTC

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

  3. monitoring Jul 21, 2026, 05:07 PM UTC

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

  4. resolved Jul 21, 2026, 06:18 PM UTC

    From 8:28am PT / 15:28 UTC through 9:26am PT / 16:26 UTC users experienced elevated errors on requests to multiple Claude models. This issue has been resolved.