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Outage in Claude

Degraded performance for Claude Opus 5, Claude Sonnet 5

Resolved Minor
August 17, 2026 - Started 3 days ago - Lasted about 2 hours
Official incident page

Incident Report

Summary AI Generated

Claude Opus 5 and Claude Sonnet 5 experienced elevated errors affecting both the API and claude.ai for approximately 1.5 hours. Claude Sonnet 5 was confirmed degraded during the incident, while Opus 5 was restored to operational status earlier in the investigation. A fix was implemented and the incident was fully resolved within the same timeframe.

We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.
Components affected
Claude api.anthropic.com Claude claude.ai
Latest Updates ( sorted recent to last )
RESOLVED 3 days ago - at 08/17/2026 03:29PM

This incident has been resolved.

MONITORING 3 days ago - at 08/17/2026 02:39PM

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

INVESTIGATING 3 days ago - at 08/17/2026 02:25PM

Claude Opus 5 is operational. Claude Sonnet 5 is degraded. We are investigating.

INVESTIGATING 3 days ago - at 08/17/2026 01:56PM

We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.

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