September 2026 Anthropic outage records

Daily records

Sep 1 – Sep 30

OperationalOutageDegradedMaintenance

Events

Wed, Sep 301 entries

ResolvedElevated errors on claude.ai, Claude Code, Claude Cowork and the Claude APIAnthropic01:27

Tue, Sep 221 entries

ResolvedElevated errors for multiple modelsAnthropic11:35

Thu, Sep 171 entries

ResolvedIssues with Google Play subscriptionsAnthropic01:51

Tue, Sep 152 entries

ResolvedIntermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1Anthropic20:14
ResolvedDegraded functionality for Claude Cowork on WindowsAnthropic04:14

Fri, Sep 112 entries

Fri, Sep 41 entries

ResolvedElevated errors for multiple modelsAnthropic01:23

About Anthropic records

These records collect incident and recovery notices for Anthropic services such as Claude and the API. New notices come from the official Claude status page operated by Anthropic. Notices are grouped by outage, delay, maintenance and recovery wording in their titles and descriptions, with the original times shown. When no time is given, older notices show no time, while newly found notices show the first check time marked observed. Check the original notice for the precise impact on the services you use.

Source: Anthropic