Outage in Anthropic

Elevated errors on Claude Opus 4.6 and Sonnet 4.6

Resolved Major

March 13, 2026 - Started about 7 hours ago - Lasted about 3 hours
Official incident page

Incident Report

Summary AI Generated

Anthropic experienced elevated errors affecting Claude Opus 4.6 and Sonnet 4.6 models across both claude.ai and api.anthropic.com for 2.9 hours. Users reported that Claude crashed and would not respond to queries during the outage. The incident was resolved after investigation and remediation efforts.

We are currently investigating this issue.

Components affected

Anthropic claude.ai Anthropic api.anthropic.com

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Latest Updates ( sorted recent to last )

RESOLVED about 4 hours ago - at 03/13/2026 09:27PM

This incident has been resolved.

INVESTIGATING about 7 hours ago - at 03/13/2026 06:37PM

We are currently investigating this issue.

Latest Anthropic outages

Elevated errors on Claude Sonnet 4.6 - 1 day ago

Elevated errors on Claude.ai (including login issues for Claude Code) - 2 days ago

Claude Desktop app unresponsive - 5 days ago

Elevated errors on Claude Haiku 4.5 - 6 days ago

Filesystem connector missing from Claude Desktop - 7 days ago

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