Viggle launches JST-2, billed as first full-stack physics-native 3D world model

Div_pradeep · x · 2026-10-20

Viggle released JST-2, calling it the world's first full-stack physics-native world foundation model. Unlike world models that learn in pixel/video space, JST-2 is built entirely in 3D: it generates scenes in seconds, expands them in real time, and creates characters with built-in motion via one general architecture. A demo shows a single full-body photo reconstructing the room in 3D with the person inside, with a rotatable camera.

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