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Robotics

DyPES-VLA: Learning Shared Dynamics Priors and Embodiment-Specific Control for Cross-Embodiment Manipulation

Junfeng Li, Junjie He

Featured August 10, 2026

Original Paper

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Simply

A new robot brain called DyPES-VLA learns how things move and interact from many videos, then uses special "expert" parts to tell different kinds of robots exactly how to move their unique bodies to do tasks.

In depth
The paper introduces DyPES-VLA, a novel approach for training a single robot policy that can control diverse robot bodies. It achieves this by first learning shared dynamics priors from various robot and human videos, capturing how objects move and interact. These universal insights are then translated into specific actions for each robot using an embodiment-specific Mixture-of-Experts (MoE) action head, which avoids the need for complex manual action format conversions.

Key Takeaways

  • 1
    DyPES-VLA learns shared dynamics priors from diverse visual data using a future-prediction objective, enabling a unified understanding of object interactions across different robot embodiments.
  • 2
    The model employs an embodiment-specific Mixture-of-Experts (MoE) action head to translate these shared priors into native control signals for each robot, eliminating the need for manual action space alignment.
  • 3
    The two-stage training process, starting with pretraining on action-free videos, significantly enhances the transferability and performance of the generalist policy across both simulated and real-world robots.

Conceptual Flow

HIGH LEVEL
1
Methodology: Shared Understanding, Specific Control

The system first learns general rules about how things move and interact, then uses special robot-specific parts to make each robot move correctly.

Robot Videos
Human Videos
Learn Universal Rules
Robot-Specific Actions
2
Results: One Policy, Many Robots

The new method helps one robot brain control many different robots much better than older methods, both in computer tests and with real robots.

Old Robot Control
New Robot Control
Compare Performance
Better Robot Success