In the mirror universe, the Artosk was a Breen Confederacy starship in service in 2377.

In 2377, the Artosk delivered Thot Gor to the former site of Imperial Starbase 47 in the Taurus Reach for a rendezvous with the Gorn battle cruiser Shozsta and the Tholian battleship Lanz't Tholis. The historic conference led to the founding of the Taurus Pact. (ST - Mirror Universe novel: Rise Like Lions)