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Outage in Claude

Sonnet 4.5 elevated errors

Resolved Minor
June 01, 2026 - Started 2 days ago - Lasted 20 minutes
Official incident page

Incident Report

Summary AI Generated

Claude's Sonnet 4.5 model experienced elevated error rates affecting claude.ai, the developer console, and API endpoints for 20 minutes. The incident impacted users' ability to interact with the Sonnet 4.5 model across all Claude platforms. A fix was implemented and the issue was resolved after monitoring confirmed the errors had returned to normal levels.

We are currently investigating this issue.
Components affected
Claude claude.ai Claude console.anthropic.com Claude api.anthropic.com
Latest Updates ( sorted recent to last )
RESOLVED 2 days ago - at 06/01/2026 09:28AM

This incident has been resolved.

MONITORING 2 days ago - at 06/01/2026 09:17AM

We are continuing to monitor for any further issues.

MONITORING 2 days ago - at 06/01/2026 09:13AM

A fix has been implemented and we are monitoring the results.

INVESTIGATING 2 days ago - at 06/01/2026 09:08AM

We are currently investigating this issue.

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