Anthropic experienced elevated errors on Claude Opus 4.8 affecting both claude.ai and the API, lasting approximately 13 minutes between 1:45–1:58 PM PT on June 16, 2026. The issue was identified and resolved, with monitoring continuing afterward to ensure stability. No further disruptions were reported following the fix.
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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.
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.
We are investigating elevated errors on requests to Claude Opus 4.8. We will provide an update as soon as possible.
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