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arXiv Robotics — research abstracts· Jiajun Cao, Kai Tang, Bohua Zhang, Zezhong Qian, Ying Li, Xiaozhu Ju, Xiaobao Wei, Jiaming Liu, Yang Ding, Sixiang Chen, Yiding Sun, Siyuan Qian, Tinghao Wang, Jixian Wu, Yichen Guo, Yi Zhang, Shilong Zou, Yong Dai, Jian Tang, Shanghang Zhang·· 13 hours agoSignalEditorial score85

LAW: Unifying Language, Action, and World Modeling for Agentic Physical Intelligence

LAW: Unifying Language, Action, and World Modeling for Agentic Physical Intelligence

Summary

This research presents LAW, a closed-loop framework that combines vision-language models (VLM) with world-action models (WAM) to enable agentic physical intelligence. The system uses semantic subtask progress to plan, evaluate, and execute actions across long-horizon tasks. LAW achieves 94.21% average success on 50 RoboTwin tasks and 65% on real-robot tasks, outperforming existing methods like $pi_{0.5}$ and Fast-WAM.

Editorial context

The paper introduces LAW, a novel framework that integrates language reasoning, action generation, and world modeling for physical intelligence tasks. It demonstrates strong performance on both simulated and real-world robotic tasks, outperforming existing methods like $pi_{0.5}$ and Fast-WAM.

Source: arXiv Robotics — research abstracts · Read original article ↗

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What the source reports

Publisher-reported claims, with original evidence. These results have not been independently verified by RoboSignal.

Reported numbers

  • Reported success rate

    95.56%

    View original evidence
    -stream hierarchical visual memory maintains temporal context for both models, while subtask-local value learning aligns action evaluation with semantic objectives and preserves supervision from successful prefixes of failed trajectories. LAW achieves 94.21% average success across 50 RoboTwin tasks. Replacing the WAM backbone with OpenWAM-$alpha$ further raises the average success rate to 95.56%, establishing a new o
    Open source S4
  • tasks

    50

    View original evidence
    -stream hierarchical visual memory maintains temporal context for both models, while subtask-local value learning aligns action evaluation with semantic objectives and preserves supervision from successful prefixes of failed trajectories. LAW achieves 94.21% average success across 50 RoboTwin tasks. Replacing the WAM backbone with OpenWAM-$alpha$ further raises the average success rate to 95.56%, establishing a new o
    Open source S4
  • tasks

    3

    View original evidence
    pen-source state of the art on RoboTwin. Despite having only 2B parameters, our VLM also outperforms variants using Embodied-R1.5 and GPT-5.5 High. On three long-horizon real-robot tasks, LAW achieves 65% average success, compared with 28.33% for $pi_{0.5}$ and 25% for Fast-WAM.
    Open source S5
  • paper: not_reported
  • code: not_reported
  • weights: not_reported
  • dataset: not_reported

What remains unknown

Not established in the collected evidence: Environment, Control, Data origin.

Reported performance applies to the described task. It does not establish general autonomy or deployment readiness.

Source excerpts and review record

Automatically extracted; no manual editorial approval recorded.

-stream hierarchical visual memory maintains temporal context for both models, while subtask-local value learning aligns action evaluation with semantic objectives and preserves supervision from successful prefixes of failed trajectories. LAW achieves 94.21% average success across 50 RoboTwin tasks. Replacing the WAM backbone with OpenWAM-$alpha$ further raises the average success rate to 95.56%, establishing a new o

Open source S4

pen-source state of the art on RoboTwin. Despite having only 2B parameters, our VLM also outperforms variants using Embodied-R1.5 and GPT-5.5 High. On three long-horizon real-robot tasks, LAW achieves 65% average success, compared with 28.33% for $pi_{0.5}$ and 25% for Fast-WAM.

Open source S5

Source:arXiv Robotics — research abstracts · arxiv.org

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