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Outage in Anthropic

Elevated errors on Claude Sonnet 4.6

Resolved Minor
March 17, 2026 - Started about 1 month ago - Lasted about 2 hours
Official incident page

Incident Report

Summary AI Generated

Anthropic experienced elevated errors on Claude Sonnet 4.6 that specifically impacted free Claude.ai users for 1.7 hours. The issue was identified and a fix was implemented, with the service being monitored before full resolution was confirmed.

The issue has been identified and a fix is being implemented. At this stage, only free Claude.ai users are being impacted.
Components affected
Anthropic claude.ai

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Latest Updates ( sorted recent to last )
RESOLVED about 1 month ago - at 03/17/2026 03:45PM

This incident has been resolved.

MONITORING about 1 month ago - at 03/17/2026 03:28PM

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

IDENTIFIED about 1 month ago - at 03/17/2026 03:21PM

We are continuing to work on a fix for this issue.

IDENTIFIED about 1 month ago - at 03/17/2026 02:07PM

The issue has been identified and a fix is being implemented. At this stage, only free Claude.ai users are being impacted.

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