Claude is reporting a major outage. This thread was opened automatically from the vendor’s own status page.
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
Official status: stspg.io
Every service we watch, at a glance: KEH-TECH service status board
Is it hitting you? Reply with what you see (which app, which region or tenant, the error text) and any workaround that helps. When the vendor clears it, a note is added here.
Claude no longer reports a major outage (checked 5 Oct 2026, 13:30 UTC). If you are still seeing problems, say so here: recoveries often reach some tenants and regions later than others.