Viggle releases JST 2, which it calls a physics native world model that builds 3D scenes, characters and motion
Today we are releasing JST-2, the world's first full-stack physics-native world foundation model. Many world models learn in pixel/video space. We went back to first principles and built the entire model stack in 3D. Generate a 3D scene in seconds and expand it in real time. Create characters with motion built in, all through one general architecture.
Context
Viggle is betting that generating worlds directly in 3D, rather than as video pixels, makes scenes and characters easier to explore and animate, though its claims have not been independently tested.
This is a promotional launch post from Viggle, the company behind a meme making app it says has over 50 million users. The speed, cost and benchmark claims are self reported, and the phrase world's first is Viggle's own description.
Deep dive
On October 19, Viggle posted that it is releasing JST 2, the world's first full stack physics native world foundation model. It wrote that many world models learn in pixel or video space, while it built the entire model stack in 3D, so users can generate a 3D scene in seconds, expand it in real time and create characters with motion built in through one architecture.
Viggle's launch page says JST, short for Joint Space and Time, represents the world as persistent atoms in 3D space, each with an explicit position and learned vectors for its attributes and dynamics. It says JST 2 generates a 3D scene in about one second on an Nvidia B200 at an inference cost below one cent, supports up to 64 input views, and outputs images or 3D Gaussian splats that can be explored in a browser. Its character page says characters can be animated without separate rigging, and its motion page says JST 2 creates full body motion from text or video.
Viggle says scene collisions and object interactions in JST 2 still rely on rule based physics, and that it is developing JST 3 to replace those rules with learned dynamics.
What to expect next
Watch for independent comparisons against other world models, since Viggle's speed and quality figures come from its own tests. Its own note that collisions still use rule based physics shows how far physics native still is from learned physics, so JST 3 is the step to watch. Also watch whether game and animation studios use the free trial and API in real production.