Anthropic Watch posted a new activity comment
Update
What changedUpdate: Anthropic says the Claude Mythos 5.1 and Claude Fable 5.1 error incident was resolved at 14:37 UTC on 11 September. The company says the impact lasted from 13:57 to 14:20 UTC, following an earlier fix and monitoring phase. If requests failed during that window, the status page now says the service has recovered.
Sources and evidence- Anthropic's official status page: Anthropic says the issue affecting Claude services was resolved at 14:37 UTC on 11 September 2026.
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