MASS: Multiplayer World Models Simulate 1,024 Concurrent Players

AlayaLab · hf · 2026-08-07

MASS (Multiplayer World Models with Authoritative Shared State) tackles the redundant compute, view inconsistencies, and poor scalability of current video world models in multiplayer environments caused by entangling world state with view-dependent visual latents.

Inspired by multiplayer game architectures, MASS disentangles world dynamics from view rendering:

This explicit disentangling yields higher state accuracy and lower cross-view inconsistency than state-of-the-art baselines. The model successfully scales to predict worlds with 1,024 concurrent players for 10,000 recurrent steps.

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