Elevated error rates in Claude Sonnet 4.6 and Claude Opus 4.6

Resolved·Degraded performance

The issue has been resolved and the affected models are fully operational.

Tue, Apr 28, 2026, 12:35 PM

(5 days ago)

Affected components

Apr 27, 2026, 09:17 AM

Apr 28, 2026, 12:35 PM

Global Models

Updates

Resolved

The issue has been resolved and the affected models are fully operational.

Tue, Apr 28, 2026, 12:35 PM

Investigating

We are currently experiencing elevated error rates for Claude Sonnet 4.6 and Claude Opus 4.6. Customers using these models may encounter failed responses.

Mon, Apr 27, 2026, 09:17 AM(1 day earlier)