Degraded performance for Claude Opus 5 and Claude Haiku 4.5

Resolved

Yes — Claude had a problem on August 19, 2026, and Claude (Anthropic) has since marked it resolved. Claude (Anthropic)'s latest word: “This incident has been resolved.”

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Timeline

Started: 8/19/2026, 9:42:37 AM

Last update: 8/19/2026, 11:02:18 AM

Resolved: 8/19/2026, 11:02:18 AM

Affected: rwppv331jlwc, k8w3r06qmzrp, yyzkbfz2thpt, bpp5gb3hpjcl

Claude (Anthropic)'s official report →

Updates

resolved
This incident has been resolved.
8/19/2026, 11:02:18 AM
monitoring
A fix has been implemented and we are monitoring the results.
8/19/2026, 10:33:56 AM
identified
We have identified the cause of elevated errors on requests to Claude Opus 5 and Claude Haiku 4.5 and are working on a fix. We will provide an update as soon as possible.
8/19/2026, 9:42:37 AM

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Elevated errors for Claude Fable 5.1 — resolved, 4d ago
Elevated errors for Claude Sonnet 5.5 and other models — resolved, 4d ago

Is Claude down right now?All outage history →