Outage in Claude

Elevated errors on Claude Opus 4.6

Resolved Minor

March 04, 2026 - Started about 8 hours ago - Lasted about 2 hours
Official incident page

Incident Report

Summary AI Generated

Claude Opus 4.6 experienced elevated errors for 1.7 hours, affecting both claude.ai and api.anthropic.com. Users reported that every prompt was returning API error 400, preventing normal service usage. The incident was resolved after investigation and monitoring.

We are currently investigating this issue.

Components affected

Claude claude.ai Claude api.anthropic.com

Latest Updates ( sorted recent to last )

RESOLVED about 6 hours ago - at 03/04/2026 03:57PM

This incident has been resolved.

INVESTIGATING about 8 hours ago - at 03/04/2026 02:14PM

We are currently investigating this issue.

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