Outage in Claude
Degraded performance for multiple models
Resolved MinorIncident Report
Summary AI Generated
Claude experienced elevated error rates across multiple models on August 12, 2026, with impact eventually narrowing to primarily Claude Fable 5. Both claude.ai and api.anthropic.com were affected for approximately 4.3 hours. The issue was resolved by 18:07 UTC.
We are investigating elevated errors on requests to multiple models. We will provide an update as soon as possible.
Components affected
Claude claude.ai Claude api.anthropic.comLatest Updates ( sorted recent to last )
RESOLVED
33 minutes ago - at 08/12/2026 06:07PM
This issue has been resolved.
IDENTIFIED
about 1 hour ago - at 08/12/2026 05:28PM
We are continuing to work to resolve an issue resulting in slightly elevated errors on requests to Claude Fable 5. We will provide an update as soon as possible.
IDENTIFIED
about 3 hours ago - at 08/12/2026 04:10PM
We have identified an issue which resulted in errors across multiple models. At this time, errors are primarily impacting Claude Fable 5 and we are working to fully resolve these issues.
INVESTIGATING
about 5 hours ago - at 08/12/2026 01:50PM
We are investigating elevated errors on requests to multiple models. We will provide an update as soon as possible.
Latest Claude outages
Degraded performance for Claude Opus 5 - 7 days ago
Degraded performance of multiple models - 7 days ago
Elevated errors across many models - 8 days ago
Elevated errors on Claude Sonnet 5 - 8 days ago
Elevated errors on Claude Sonnet 5 - 9 days ago
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