RESEARCH PAPER

Learning Massively Multitask World Models for Continuous Control

Nicklas Hansen; Hao Su; Xiaolong Wang

Classification

View four quadrants
Major category
WAMs
Architecture
Pending verification
Prediction paradigm
Other mechanisms
Source review status
Not assigned

Category review. Language-conditioned latent dynamics, reward/value models and a policy prior feed explicit CEM/MPPI planning that selects executed continuous-control actions. This is a complete model-based multitask agent. The described action mechanism is external planning, model-assisted policy optimization, geometric tracking, or video-conditioned control; the source does not establish joint future/action generation or an IDM action decoder. Reading evidence

AT A GLANCE

Contribution

Newt extends TD-MPC2 into a language-conditioned agent that learns latent dynamics from demonstrations and online interaction across MMBench. Its practical recipe pretrains the world model and policy prior, retains action supervision, and uses the model to plan. It improves over the evaluated multitask baselines, but specialist policies remain stronger and long open-loop execution is uneven. The evidence concerns simulated, predominantly state-based control.

Abstract

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Affiliations

University of California San Diego