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Yuan-Long Zhang

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Preprint Oct 2026

PRISM: Precision Forcing for Generalist Vision-Language-Action Policies

Coupling a pretrained vision-language model (VLM) with a diffusion or flow-matching action expert has become the mainstream vision-language-action (VLA) paradigm for embodied policies, yet they remain unreliable once a task demands precise manipulation, e.g., submillimeter cable insertion. We attribute this weakness to...

Cheng-Hao Yue, Pei-Yan Li, Hao Wang et al. · 0 citations

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