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Standard vision-language-action (VLA) models rely on fitting statistical data priors, limiting their robust understanding of underlying physical dynamics. Reinforcement learning enhances physical grounding through exploration yet typically…

Robotics · Computer Science 2026-02-26 Chenyv Liu , Wentao Tan , Lei Zhu , Fengling Li , Jingjing Li , Guoli Yang , Heng Tao Shen

A fundamental objective of manipulation policy design is to endow robots to comprehend human instructions, reason about scene cues, and execute generalized actions in dynamic environments. Recent autoregressive vision-language-action (VLA)…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Jiaming Liu , Hao Chen , Pengju An , Zhuoyang Liu , Renrui Zhang , Chenyang Gu , Xiaoqi Li , Ziyu Guo , Sixiang Chen , Mengzhen Liu , Chengkai Hou , Mengdi Zhao , KC alex Zhou , Pheng-Ann Heng , Shanghang Zhang

Vision-language-action (VLA) models trained on large-scale internet data and robot demonstrations have the potential to serve as generalist robot policies. However, despite their large-scale training, VLAs are often brittle to…

Robotics · Computer Science 2024-10-04 Asher J. Hancock , Allen Z. Ren , Anirudha Majumdar

Vision-Language-Action (VLA) models enable robots to understand and perform complex tasks from multimodal input. Although recent work explores using reinforcement learning (RL) to automate the laborious data collection process in scaling…

Machine Learning · Computer Science 2026-01-30 Kang Chen , Zhihao Liu , Tonghe Zhang , Zhen Guo , Si Xu , Hao Lin , Hongzhi Zang , Xiang Li , Quanlu Zhang , Zhaofei Yu , Guoliang Fan , Tiejun Huang , Yu Wang , Chao Yu

Vision-Language-Action (VLA) models have demonstrated remarkable generalization capabilities in robotic manipulation tasks, yet their substantial computational overhead remains a critical obstacle to real-world deployment. Improving…

Robotics · Computer Science 2026-02-03 Yujie Wei , Jiahan Fan , Jiyu Guo , Ruichen Zhen , Rui Shao , Xiu Su , Zeke Xie , Shuo Yang

While vision-language-action (VLA) models for embodied agents integrate perception, reasoning, and control, they remain constrained by two critical weaknesses: first, during grasping tasks, the action tokens generated by the language model…

Robotics · Computer Science 2026-02-03 Wentao Zhang , Aolan Sun , Wentao Mo , Xiaoyang Qu , Yuxin Zheng , Jianzong Wang

Vision-language-action (VLA) models represent a promising direction for developing general-purpose robotic systems, demonstrating the ability to combine visual understanding, language comprehension, and action generation. However,…

Robotics · Computer Science 2024-12-10 Pranav Guruprasad , Harshvardhan Sikka , Jaewoo Song , Yangyue Wang , Paul Pu Liang

Vision-Language-Action (VLA) models achieve over 95% success on standard benchmarks. However, through systematic experiments, we find that current state-of-the-art VLA models largely ignore language instructions. Prior work lacks: (1)…

Robotics · Computer Science 2026-03-03 Yuchen Hou , Lin Zhao

Recent vision-language-action (VLA) systems have demonstrated strong capabilities in embodied manipulation. However, most existing VLA policies rely on limited observation windows and end-to-end action prediction, which makes them brittle…

Robotics · Computer Science 2026-04-16 Zhen Liu , Xinyu Ning , Zhe Hu , Xinxin Xie , Weize Li , Zhipeng Tang , Chongyu Wang , Zejun Yang , Hanlin Wang , Yitong Liu , Zhongzhu Pu

Current Vision-Language-Action (VLA) paradigms in end-to-end autonomous driving rely on offline training from static datasets, leaving them vulnerable to distribution shift. Recent post-training methods use takeover data to mitigate this by…

Vision-Language-Action (VLA) models achieve strong performance in robotic manipulation by leveraging pre-trained vision-language backbones. However, in downstream robotic settings, they are typically fine-tuned with limited data, leading to…

Machine Learning · Computer Science 2026-03-31 Chanyoung Kim , Minwoo Kim , Minseok Kang , Hyunwoo Kim , Dahuin Jung

In Vision-Language-Actionf(VLA) models, robustness to real-world perturbations is critical for deployment. Existing methods target simple visual disturbances, overlooking the broader multi-modal perturbations that arise in actions,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Jianing Guo , Zhenhong Wu , Chang Tu , Yiyao Ma , Xiangqi Kong , Zhiqian Liu , Jiaming Ji , Shuning Zhang , Yuanpei Chen , Kai Chen , Qi Dou , Yaodong Yang , Xianglong Liu , Huijie Zhao , Weifeng Lv , Simin Li

Vision-Language-Action (VLA) models demonstrate remarkable potential for generalizable robotic manipulation. The performance of VLA models can be improved by integrating with action chunking, a critical technique for effective control.…

The growing success of Vision-Language-Action (VLA) models stems from the promise that pretrained Vision-Language Models (VLMs) can endow agents with transferable world knowledge and vision-language (VL) grounding, laying a foundation for…

Machine Learning · Computer Science 2025-10-30 Nikita Kachaev , Mikhail Kolosov , Daniil Zelezetsky , Alexey K. Kovalev , Aleksandr I. Panov

Reasoning Vision Language Action (VLA) models improve robotic instruction-following by generating step-by-step textual plans before low-level actions, an approach inspired by Chain-of-Thought (CoT) reasoning in language models. Yet even…

Robotics · Computer Science 2026-01-15 Yilin Wu , Anqi Li , Tucker Hermans , Fabio Ramos , Andrea Bajcsy , Claudia Pérez-D'Arpino

Vision-Language-Action (VLA) models have recently emerged as a promising paradigm for robotic manipulation, in which reliable action prediction critically depends on accurately interpreting and integrating visual observations conditioned on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Yulin Luo , Hao Chen , Zhuangzhe Wu , Bowen Sui , Jiaming Liu , Chenyang Gu , Zhuoyang Liu , Qiuxuan Feng , Jiale Yu , Shuo Gu , Peng Jia , Pheng-Ann Heng , Shanghang Zhang

Vision-language action (VLA) policies often report strong manipulation benchmark performance with relatively few demonstrations, but it remains unclear whether this reflects robust language-to-object grounding or reliance on…

Robotics · Computer Science 2026-03-02 David Emukpere , Romain Deffayet , Jean-Michel Renders

Vision-Language-Action (VLA) models are emerging as highly effective planning models for end-to-end autonomous driving systems. However, current works mostly rely on imitation learning from sparse trajectory annotations and under-utilize…

Recent vision-language-action (VLA) models built upon pretrained vision-language models (VLMs) have achieved significant improvements in robotic manipulation. However, current VLAs still suffer from low sample efficiency and limited…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Shangchen Miao , Ningya Feng , Jialong Wu , Ye Lin , Xu He , Dong Li , Mingsheng Long

Vision-Language-Action (VLA) models have emerged as a promising paradigm for building embodied agents that ground perception and language into action. However, most existing approaches rely on direct action prediction, lacking the ability…

Robotics · Computer Science 2026-04-21 Runze Li , Hongyin Zhang , Junxi Jin , Qixin Zeng , Zifeng Zhuang , Yiqi Tang , Shangke Lyu , Donglin Wang