Outage in Anthropic
Elevated errors on Claude Sonnet 4.6
Resolved MinorIncident 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
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Latest Updates ( sorted recent to last )
RESOLVED
about 15 hours ago - at 03/17/2026 03:45PM
This incident has been resolved.
MONITORING
about 15 hours ago - at 03/17/2026 03:28PM
A fix has been implemented and we are monitoring the results.
IDENTIFIED
about 15 hours ago - at 03/17/2026 03:21PM
We are continuing to work on a fix for this issue.
IDENTIFIED
about 16 hours 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.
Latest Anthropic outages
Elevated errors on Claude Opus 4.6 - about 11 hours ago
Elevated errors on Claude Opus 4.6 - about 21 hours ago
Elevated errors on Claude Sonnet 4.6 - about 23 hours ago
Elevated errors on Claude Sonnet 4.6 - 1 day ago
Elevated errors on Claude.ai - 1 day ago
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