Outage in Anthropic

Elevated errors for requests to all models

Resolved Major
March 29, 2025 - Started 4 days ago - Lasted about 2 hours
Official incident page

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Outage Details

We are currently investigating elevated errors on requests to Claude 3.5 Sonnet on the API, Claude.ai, and the Anthropic Console.
Latest Updates ( sorted recent to last )
RESOLVED 4 days ago - at 03/30/2025 01:05AM

This incident has been resolved.

MONITORING 4 days ago - at 03/30/2025 12:27AM

Success rates have returned to normal, and we are monitoring to confirm no further issues.

IDENTIFIED 4 days ago - at 03/30/2025 12:11AM

We are continuing to see some errors impacting June Sonnet 3.5, and our engineers are working to resolve these issues. We will provide additional updates shortly.

MONITORING 4 days ago - at 03/29/2025 11:53PM

From 22:32–23:39 UTC, requests to multiple Anthropic models experienced significantly elevated error rates. We have applied a fix, and success rates have returned to normal. We are closely monitoring.

INVESTIGATING 4 days ago - at 03/29/2025 11:19PM

We are currently investigating elevated errors on requests to Claude 3.5 Sonnet on the API, Claude.ai, and the Anthropic Console.

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