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Outage in Anthropic

Elevated errors on Claude Sonnet 4.6 and Opus 4.8

Resolved Minor
June 16, 2026 - Started about 2 hours ago - Lasted about 2 hours
Official incident page

Incident Report

Summary AI Generated

**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.

We are currently investigating this issue.

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Latest Updates ( sorted recent to last )
RESOLVED 25 minutes ago - at 06/17/2026 02:50AM

This incident has been resolved.

IDENTIFIED about 1 hour ago - at 06/17/2026 01:52AM

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.

INVESTIGATING about 2 hours ago - at 06/17/2026 12:47AM

We are currently investigating this issue.

Latest Anthropic outages

Opus 4.8 errors - about 7 hours ago
Elevated errors across many models - about 10 hours ago

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