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Outage in Anthropic

Elevated errors for Claude Sonnet 4.6 and Haiku 4.5

Resolved Major
May 12, 2026 - Started about 11 hours ago - Lasted 37 minutes
Official incident page

Incident Report

Summary AI Generated

Anthropic experienced elevated errors affecting Claude Sonnet 4.6 and Haiku 4.5 models across claude.ai, console.anthropic.com, and api.anthropic.com. Users encountered increased failure rates when making requests to these specific Claude model versions. The incident was resolved after 37 minutes of service disruption.

We are investigating elevated errors on requests to Claude Sonnet 4.6 and Haiku 4.5. We will provide an update as soon as possible.

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Latest Updates ( sorted recent to last )
RESOLVED about 10 hours ago - at 05/12/2026 08:13PM

This incident has been resolved.

INVESTIGATING about 11 hours ago - at 05/12/2026 07:36PM

We are investigating elevated errors on requests to Claude Sonnet 4.6 and Haiku 4.5. We will provide an update as soon as possible.

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