Outage in Claude

Degraded performance of multiple models

Resolved Minor

August 05, 2026 - Started about 10 hours ago - Lasted about 7 hours
Official incident page

Incident Report

Summary AI Generated

Claude experienced elevated error rates across multiple models—Claude Mythos 5, Claude Fable 5, Claude Opus 5, and Claude Sonnet 5—affecting both claude.ai and the API for approximately 7 hours on August 5, 2026. The root cause was identified early in the incident, and a fix was deployed before the incident was fully resolved and closed.

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

Components affected

Claude claude.ai Claude api.anthropic.com

Latest Updates ( sorted recent to last )

RESOLVED about 3 hours ago - at 08/05/2026 02:14PM

This incident has been resolved.

MONITORING about 4 hours ago - at 08/05/2026 01:08PM

A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.

IDENTIFIED about 8 hours ago - at 08/05/2026 09:13AM

We are continuing to work on a fix for this issue.

IDENTIFIED about 10 hours ago - at 08/05/2026 07:05AM

Latest Claude outages

Degraded performance for Claude Opus 5 - about 3 hours ago

Elevated errors across many models - about 21 hours ago

Elevated errors on Claude Sonnet 5 - 1 day ago

Degraded performance on Claude Sonnet 5 - 2 days ago

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