Outage in Anthropic

Elevated errors on Claude Opus 4.6

Resolved Minor

March 31, 2026 - Started about 20 hours ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

Claude Opus 4.6 experienced elevated error rates starting at 1:33 PT, affecting both claude.ai and api.anthropic.com services. Error rates returned to baseline levels at 2:19 PT, and the incident was fully resolved after 54 minutes of disruption.

Issue started at 1:33 PT / 8:53 UTC.

Components affected

Anthropic claude.ai Anthropic api.anthropic.com

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Latest Updates ( sorted recent to last )

RESOLVED about 19 hours ago - at 03/31/2026 09:44AM

This incident has been resolved.

MONITORING about 20 hours ago - at 03/31/2026 09:21AM

At baseline error rate from 2:19 PT / 9:19 UTC.

INVESTIGATING about 20 hours ago - at 03/31/2026 08:53AM

Issue started at 1:33 PT / 8:53 UTC.

Latest Anthropic outages

Elevated errors and latency on Claude Haiku 4.5 - about 3 hours ago

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Opus 4.6 and Sonnet 4.6 error rate elevated - about 9 hours ago

Dispatch sessions not responding in Claude Desktop - 3 days ago

Elevated errors on Opus 4.6 Fast Mode - 4 days ago

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