LEGO Star Wars set 75313, released in 2021, is the AT-AT.
The set depicts the four-legged All Terrain Armored Transport used by the Galactic Empire in Star Wars. It was released as an Ultimate Collector Series model, a premium LEGO Star Wars range aimed at display and advanced building rather than ordinary play alone.
The 2021 AT-AT contains 6,785 pieces and stands roughly 62 centimetres tall when assembled. Its design includes articulated legs, an opening body, a cockpit, interior troop space, and room for minifigures.
Collectors sometimes confuse this model with earlier LEGO AT-AT sets, including set 4483 from 2003 and set 10178, the motorized AT-AT from 2007. Set 75313 is the large 2021 UCS version.