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Outage in Anthropic

Degraded performance for Claude Opus 5 and Claude Haiku 4.5

Resolved Minor
August 19, 2026 - Started 2 days ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

Claude Opus 5 and Claude Haiku 4.5 experienced elevated error rates affecting both claude.ai and api.anthropic.com for approximately 1.4 hours. Anthropic identified the root cause, implemented a fix, and fully resolved the incident.

We have identified the cause of elevated errors on requests to Claude Opus 5 and Claude Haiku 4.5 and are working on a fix. We will provide an update as soon as possible.

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Latest Updates ( sorted recent to last )
RESOLVED 2 days ago - at 08/19/2026 11:02AM

This incident has been resolved.

MONITORING 2 days ago - at 08/19/2026 10:33AM

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

IDENTIFIED 2 days ago - at 08/19/2026 09:42AM

We have identified the cause of elevated errors on requests to Claude Opus 5 and Claude Haiku 4.5 and are working on a fix. We will provide an update as soon as possible.

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