**Incident Summary** On June 17, 2026, Anthropic experienced elevated error rates affecting Claude Sonnet 4.6 and Opus 4.8 models across claude.ai, the Anthropic console, and the API. Sonnet 4.6 recovered first, with Opus 4.8 requiring additional remediation before full resolution. The incident lasted approximately 2.1 hours before being fully resolved.
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This incident has been resolved.
At this time, success rates for Claude Sonnet 4.6 have recovered and we are working to resolve an issue resulting in elevated errors on Opus 4.8. We will provide additional updates as soon as possible.
We are currently investigating this issue.
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