Outage in Anthropic
Degraded performance of multiple models
Resolved MinorIncident Report
Summary AI Generated
Anthropic experienced elevated error rates across multiple Claude models — Mythos 5, Fable 5, Opus 5, and Sonnet 5 — affecting both claude.ai and the API for approximately 7 hours. The root cause was identified and a fix was deployed, with the incident fully resolved shortly after.
We have identified the cause of elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Opus 5, Claude Sonnet 5 and are working on a fix. We will provide an update as soon as possible.
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Latest Updates ( sorted recent to last )
RESOLVED
about 3 hours ago - at 08/05/2026 02:14PM
This incident has been resolved.
MONITORING
about 4 hours ago - at 08/05/2026 01:08PM
A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.
IDENTIFIED
about 8 hours ago - at 08/05/2026 09:13AM
We are continuing to work on a fix for this issue.
IDENTIFIED
about 10 hours ago - at 08/05/2026 07:05AM
We have identified the cause of elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Opus 5, Claude Sonnet 5 and are working on a fix. We will provide an update as soon as possible.
Latest Anthropic outages
Degraded performance for Claude Opus 5 - about 3 hours ago
Elevated errors across many models - about 20 hours ago
Elevated errors on Claude Sonnet 5 - 1 day ago
Elevated errors on Claude Sonnet 5 - 1 day ago
Degraded performance on Claude Sonnet 5 - 2 days ago
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