Anthropic incident

Elevated errors for Claude Opus 4.8

Resolved after 1 hour 12 minutes, affecting claude.ai and Claude API (api.anthropic.com) and 1 more, on June 16, 2026.

resolved Jun 16, 2026, 10:02 PM UTC

This issue has been resolved. We saw elevated errors on requests to Claude Opus 4.8 between 1:45pm PT / 20:45 UTC and 1:58pm PT / 20:58 UTC.

Started
Jun 16, 2026, 08:50 PM UTC
Resolved
Jun 16, 2026, 10:02 PM UTC
Duration
1h 12m
Detected by Pingoru
Jun 16, 2026, 08:50 PM UTC

Affected components

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

Update timeline

  1. investigating Jun 16, 2026, 08:50 PM UTC

    We are investigating elevated errors on requests to Claude Opus 4.8. We will provide an update as soon as possible.

  2. monitoring Jun 16, 2026, 09:01 PM UTC

    We have resolved the issue resulting in elevated errors on requests to Claude Opus 4.8, and are currently monitoring closely to prevent any further issues.

  3. resolved Jun 16, 2026, 10:02 PM UTC

    This issue has been resolved. We saw elevated errors on requests to Claude Opus 4.8 between 1:45pm PT / 20:45 UTC and 1:58pm PT / 20:58 UTC.

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