Outage in Anthropic

Elevated errors on Claude Opus 4.1

Resolved Minor
October 21, 2025 - Started about 14 hours ago - Lasted 25 minutes
Official incident page

Incident Report

We are currently investigating this issue.

Need to monitor Anthropic outages?

One place to monitor all your cloud vendors. Get instant alerts when an outage is detected.

Try IsDown risk-free 14-day free trial · No credit card required
Latest Updates ( sorted recent to last )
RESOLVED about 13 hours ago - at 10/21/2025 01:18PM

This incident has been resolved.

MONITORING about 13 hours ago - at 10/21/2025 01:04PM

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

INVESTIGATING about 14 hours ago - at 10/21/2025 12:54PM

We are currently investigating this issue.

The Status Page Aggregator Built for IT Teams

With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.

Start free trial

No credit card required · Cancel anytime · 4522 services available

Integrations with Slack Microsoft Teams Google Chat Datadog PagerDuty Zapier Discord Webhook