The T-14 is the main battle tank development of the Armata Universal Combat Platform and is considered one of the first fourth-generation MBTs in the world, though its actual service status remains unclear. In contrast to the incremental evolution of previous Soviet/Russian MBTs, the T-14 is a radical new design with hardly anything in common with its predecessors. It's most notable innovation is an unmanned turret, the first in an MBT. The turret houses the 2A82-1M 125-mm smoothbore gun which is currently the most advanced tank gun in Russian service. Like most Russian tank guns, it has the capabilitiy of firing ATGMs which can also be used against low-flying aircraft and helicopters. The crew is seated in an armored capsule at the front of the hull, who can also remotely control the secondary guns and which have 360 degree camera views. The T-14 features the Afghanit active protection system (APS) based on four AESA radar panels and with both soft- and hard-kill capability. It is also claimed to have a reduced radar cross section for greater survivability and is equipped with new Malachit explosive reactive armor (ERA) integrated into the composite armor hull. Compared to Western tanks, the T-14 is quite light and can be airlifted in an Il-76, or two in the larger An-124. Drawbacks, however, include a high profile as well as the potential loss of visiblility in the event that the crew cameras are disabled. The service status of the T-14 remains a mystery, with Russian sources claiming that it is currently in low-scale production and already active in the Russian Army. This suggests considerable teething problems with its advanced systems, many of which are untested in combat conditions. Recent statements also suggest that it is too expensive to replace the T-90 and will also not be deployed for combat in Ukraine.

Western observers first got a glimpse of the T-14 (Obyekt 148) during the Moscow Victory Day Parade in 2015. This was likely a pre-production vehicle as it was only confirmed to have entered Russian Army service in early 2024, and in a non-front line capacity given that there has been no recorded use of it during the war in Ukraine. The Armata platform is also the basis for the T-15 IFV (described separately) as well as other armored vehicles currently under development.