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arXiv Robotics — research abstracts· Ziyang Cheng, Tianshu Tang, Jinxin Lan, Xinze Chen, Yuhan Gong, Zhichao Liu, Changzhong Wu, Yahao Mao, Zongyan Deng, Mingxuan Ma, Huasen Xi, Yilong Liu, Yutong Wu, Xiaofeng Wang, Borui Zhang, Bingyao Yu, Yang Wang, Yun Ye, Guan Huang, Xiaojie Jin, Zheng Zhu, Jiwen Lu·· 4 days agoSignalEditorial score75

GigaBrain-WBC-0.5: A Behavior World Model for Robust Humanoid Whole-Body Tracking with Environment Interaction

GigaBrain-WBC-0.5: A Behavior World Model for Robust Humanoid Whole-Body Tracking with Environment Interaction

Summary

This paper introduces InterTrack, the first behavior world model (BWM) designed for robust whole-body tracking on humanoids that includes environment interaction. The system uses a Transformer to predict actions, states, and behavior distributions conditioned on the environment. An automatic annotation pipeline reconstructs 3D support geometry from retargeted motions to scale training data. At deployment, the policy handles implausible commands with best-effort responses. Quantitative results show an 81.3% success rate on terrain interaction (4.3x the best baseline), a 99.3% fall-recovery rate, and improved free-space tracking compared to three leading baselines. The work also demonstrates real-time cross-terrain whole-body teleoperation with object interaction and robust recovery from falls.

Editorial context

The authors present InterTrack, a behavior world model for humanoid whole-body tracking that achieves an 81.3% success rate on terrain interaction and a 99.3% fall-recovery rate in their reported experiments.

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.

Control
TeleoperatedOpen source S4

Reported numbers

  • Reported success rate

    81.3%

    Reported trials

    View original evidence
    est-effort" manner. Quantitatively, InterTrack achieves an 81.3% success rate on terrain interaction (4.3 times the best evaluated baseline) and a 99.3% fall-recovery rate, while also improving free-space tracking and outperforming three leading tracking baselines across all of these regimes. To our knowledge, we provide the first demonstration of real-time cross-terrain whole-body teleoperation on a humanoid robot,
    Open source S4
  • Reported success rate

    99.3%

    Reported trials

    View original evidence
    est-effort" manner. Quantitatively, InterTrack achieves an 81.3% success rate on terrain interaction (4.3 times the best evaluated baseline) and a 99.3% fall-recovery rate, while also improving free-space tracking and outperforming three leading tracking baselines across all of these regimes. To our knowledge, we provide the first demonstration of real-time cross-terrain whole-body teleoperation on a humanoid robot,
    Open source S4
  • paper: not_reported

What remains unknown

Not established in the collected evidence: Environment, 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.

est-effort" manner. Quantitatively, InterTrack achieves an 81.3% success rate on terrain interaction (4.3 times the best evaluated baseline) and a 99.3% fall-recovery rate, while also improving free-space tracking and outperforming three leading tracking baselines across all of these regimes. To our knowledge, we provide the first demonstration of real-time cross-terrain whole-body teleoperation on a humanoid robot,

Open source S4

Source:arXiv Robotics — research abstracts · arxiv.org

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