Anthropic incident

Elevated errors on Claude Sonnet 4.5

Minor Resolved View vendor source →

Anthropic experienced a minor incident on April 28, 2026 affecting Claude API (api.anthropic.com), lasting 20m. The incident has been resolved; the full update timeline is below.

Started
Apr 28, 2026, 01:29 PM UTC
Resolved
Apr 28, 2026, 01:50 PM UTC
Duration
20m
Detected by Pingoru
Apr 28, 2026, 01:29 PM UTC

Affected components

Claude API (api.anthropic.com)

Update timeline

  1. investigating Apr 28, 2026, 01:29 PM UTC

    We are currently investigating this issue.

  2. resolved Apr 28, 2026, 01:50 PM UTC

    The incident has now been resolved. The timeline for the elevated errors was 6:22 PT / 13:22 UTC -> 6:39 PT / 13:39 UTC.