Outage in Claude

Claude Sonnet 4.5 error spike

Resolved Major

April 20, 2026 - Started about 3 hours ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

Claude Sonnet 4.5 experienced a major error spike affecting the console, API, and main Claude interface for 1.2 hours. Users encountered repeated timeout messages showing "taking longer than usual" with multiple retry attempts cycling through attempts 1, 2, and 3. The issue was resolved after implementing a fix and monitoring the results.

We are currently investigating this issue.

Components affected

Claude console.anthropic.com Claude api.anthropic.com Claude claude.ai

Latest Updates ( sorted recent to last )

RESOLVED about 2 hours ago - at 04/20/2026 07:25AM

This incident has been resolved.

MONITORING about 3 hours ago - at 04/20/2026 06:41AM

We are continuing to monitor for any further issues.

MONITORING about 3 hours ago - at 04/20/2026 06:38AM

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

INVESTIGATING about 3 hours ago - at 04/20/2026 06:14AM

We are currently investigating this issue.

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