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Vision-Language-Action (VLA) models process visual inputs independently at each timestep, discarding valuable temporal information inherent in robotic manipulation tasks. This frame-by-frame processing makes models vulnerable to visual…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Chenghao Liu , Jiachen Zhang , Chengxuan Li , Zhimu Zhou , Shixin Wu , Songfang Huang , Huiling Duan

Prevalent Vision-Language-Action (VLA) models are typically built upon Multimodal Large Language Models (MLLMs) and demonstrate exceptional proficiency in semantic understanding, but they inherently lack the capability to deduce physical…

Fine-tuning vision-language models (VLMs) on robot teleoperation data to create vision-language-action (VLA) models is a promising paradigm for training generalist policies, but it suffers from a fundamental tradeoff: learning to produce…

Robotics · Computer Science 2025-09-29 Asher J. Hancock , Xindi Wu , Lihan Zha , Olga Russakovsky , Anirudha Majumdar

Recent Vision-Language-Action (VLA) models built on pre-trained Vision-Language Models (VLMs) require extensive post-training, resulting in high computational overhead that limits scalability and deployment.We propose CogVLA, a…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Wei Li , Renshan Zhang , Rui Shao , Jie He , Liqiang Nie

Vision-language-action models (VLAs) show potential as generalist robot policies. However, these models pose extreme safety challenges during real-world deployment, including the risk of harm to the environment, the robot itself, and…

Robotics · Computer Science 2026-04-21 Borong Zhang , Yuhao Zhang , Jiaming Ji , Yingshan Lei , Yishuai Cai , Josef Dai , Yuanpei Chen , Yaodong Yang

Vision-Language-Action (VLA) models have emerged as a powerful paradigm for open-world robot manipulation, but their practical deployment is often constrained by cost: billion-scale VLM backbones and iterative diffusion/flow-based action…

Autoregressive vision-language-action (VLA) models have recently demonstrated strong capabilities in robotic manipulation. However, their core process of action tokenization often involves a trade-off between reconstruction fidelity and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Yicheng Liu , Shiduo Zhang , Zibin Dong , Baijun Ye , Tianyuan Yuan , Xiaopeng Yu , Linqi Yin , Chenhao Lu , Junhao Shi , Luca Jiang-Tao Yu , Liangtao Zheng , Tao Jiang , Jingjing Gong , Xipeng Qiu , Hang Zhao

Vision-Language-Action (VLA) models have recently emerged as a promising paradigm for generalist robotic control. Built upon vision-language model (VLM) architectures, VLAs predict actions conditioned on visual observations and language…

Robotics · Computer Science 2026-05-26 Weikang Qiu , Huashuo Lei , Tinglin Huang , Rex Ying

Vision-Language-Action (VLA) models have shown strong performance on embodied manipulation, yet they remain brittle under visual observation changes, paraphrased language instructions, and compounded perturbations. This limitation suggests…

Robotics · Computer Science 2026-05-20 Jingzhou Luo , Yifan Wen , Yongjie Bai , Xinshuai Song , Yang Liu , Liang Lin

Vision-Language-Action (VLA) models have recently emerged as powerful generalists for robotic manipulation. However, due to their predominant reliance on visual modalities, they fundamentally lack the physical intuition required for…

Robotics · Computer Science 2026-02-02 Yuzhe Huang , Pei Lin , Wanlin Li , Daohan Li , Jiajun Li , Jiaming Jiang , Chenxi Xiao , Ziyuan Jiao

Latent Action Models (LAMs) have emerged as an effective paradigm for handling heterogeneous datasets during Vision-Language-Action (VLA) model pretraining, offering a unified action space across embodiments. However, existing LAMs often…

Robotics · Computer Science 2026-05-14 Qiwei Li , Xicheng Gong , Xinghang Li , Peiyan Li , Quanyun Zhou , Hangjun Ye , Jiahuan Zhou , Yadong Mu

Vision-Language-Action (VLA) models improve action generation by conditioning policies on rich vision-language information. However, current auto-regressive policies are constrained by three bottlenecks: (1) architectural bias drives models…

Robotics · Computer Science 2026-03-31 Yichi Zhang , Weihao Yuan , Yizhuo Zhang , Xidong Zhang , Jia Wan

Vision-Language-Action (VLA) models offer a promising autonomous driving paradigm for leveraging world knowledge and reasoning capabilities, especially in long-tail scenarios. However, existing VLA models often struggle with the high…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Zewei Zhou , Ruining Yang , Xuewei , Qi , Yiluan Guo , Sherry X. Chen , Tao Feng , Kateryna Pistunova , Yishan Shen , Lili Su , Jiaqi Ma

Vision Language Models (VLMs) bridge visual perception and linguistic reasoning. In Autonomous Driving (AD), this synergy has enabled Vision Language Action (VLA) models, which translate high-level multimodal understanding into driving…

Recent advances in Vision-Language-Action (VLA) models have enabled robots to execute increasingly complex tasks. However, VLA models trained through imitation learning struggle to operate reliably in dynamic environments and often fail…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Shijie Zhou , Bin Zhu , Jiarui Yang , Xiangyu Zhao , Jingjing Chen , Yu-Gang Jiang

Developing efficient and accurate visuomotor policies poses a central challenge in robotic imitation learning. While recent rectified flow approaches have advanced visuomotor policy learning, they suffer from a key limitation: After…

Robotics · Computer Science 2025-11-12 Rong Xue , Jiageng Mao , Mingtong Zhang , Yue Wang

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 hold great promise for general-purpose robotic intelligence, yet scaling up such models is severely bottlenecked by the high cost of acquiring annotated training data. Fortunately, vision-equipped robots…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Yuhao Zhou , Yunpeng Zhu , Yang Zhou , Jindi Lyu , Jian Lan , Zhangyuan Wang , Dan Si , Thomas Seidl , Qing Ye , Jiancheng Lyu

Autonomous driving has long relied on modular "Perception-Decision-Action" pipelines, where hand-crafted interfaces and rule-based components often break down in complex or long-tailed scenarios. Their cascaded design further propagates…

Vision-Language-Action (VLA) models based on flow matching have shown excellent performance in general-purpose robotic manipulation tasks. However, the action accuracy of these models on complex downstream tasks is unsatisfactory. One…

Robotics · Computer Science 2025-09-05 Hongyin Zhang , Shiyuan Zhang , Junxi Jin , Qixin Zeng , Yifan Qiao , Hongchao Lu , Donglin Wang