Outage in Anthropic

Elevated error rates on the API

Resolved Major
November 23, 2025 - Started 1 day ago - Lasted about 1 hour
Official incident page

Incident Report

We are currently investigating reports of the Claude API experiencing higher than normal failure rates. Our team is actively working to identify the root cause.
Components affected
Anthropic api.anthropic.com

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Latest Updates ( sorted recent to last )
RESOLVED 1 day ago - at 11/23/2025 02:11PM

This incident has been resolved.

MONITORING 1 day ago - at 11/23/2025 01:53PM

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

INVESTIGATING 1 day ago - at 11/23/2025 01:06PM

We are continuing to investigate this issue.

INVESTIGATING 1 day ago - at 11/23/2025 01:05PM

We are currently investigating reports of the Claude API experiencing higher than normal failure rates. Our team is actively working to identify the root cause.

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Increased error rate on Claude 4 Sonnet - 6 days ago
Elevated errors on claude.ai - 7 days ago
Elevated error rates to Sonnet 4.5 on Claude Code - 7 days ago

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