Outage in Anthropic
Elevated errors for requests to Claude Opus 4.5
Resolved MajorIncident Report
We are currently investigating this issue.
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Latest Updates ( sorted recent to last )
RESOLVED
about 2 months ago - at 11/25/2025 11:44PM
This incident has been resolved.
MONITORING
about 2 months ago - at 11/25/2025 09:28PM
A fix has been implemented and we're monitoring recovery.
IDENTIFIED
about 2 months ago - at 11/25/2025 09:16PM
We are aware of an issue affecting a large number of users causing 529 overloaded responses from our APIs. We've identified the issue and are working on mitigations. We'll be back shortly - please bear with us.
INVESTIGATING
about 2 months ago - at 11/25/2025 08:56PM
We are currently investigating this issue.
Latest Anthropic outages
Elevated error rates on Opus 4.5 and Sonnet 4.5 - about 22 hours ago
Increased rate of errors for Opus 4.5 - 2 days ago
Increased rate of errors for Opus 4.5 - 2 days ago
Elevated rate of errors for multiple models - 3 days ago
Elevated error rates on Sonnet 4.5 1M context - 5 days ago
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