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Vision-Language-Action (VLA) models remain brittle in long-horizon, contact-rich manipulation because success-only imitation provides little supervision for execution drift, while failed rollouts are often discarded. We introduce RePO-VLA,…

While Vision-Language-Action models (VLAs) are rapidly advancing towards generalist robot policies, it remains difficult to quantitatively understand their limits and failure modes. To address this, we introduce a comprehensive benchmark…

Robotics · Computer Science 2025-12-30 Borong Zhang , Jiahao Li , Jiachen Shen , Yishuai Cai , Yuhao Zhang , Yuanpei Chen , Juntao Dai , Jiaming Ji , Yaodong Yang

We introduce RIPT-VLA, a simple and scalable reinforcement-learning-based interactive post-training paradigm that fine-tunes pretrained Vision-Language-Action (VLA) models using only sparse binary success rewards. Existing VLA training…

Machine Learning · Computer Science 2025-05-23 Shuhan Tan , Kairan Dou , Yue Zhao , Philipp Krähenbühl

Vision-Language-Action (VLA) models, particularly diffusion-based architectures, demonstrate transformative potential for embodied intelligence but are severely hampered by high computational and memory demands stemming from extensive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Yantai Yang , Yuhao Wang , Zichen Wen , Luo Zhongwei , Chang Zou , Zhipeng Zhang , Chuan Wen , Linfeng Zhang

Vision-Language-Action (VLA) models combine perception, language, and motor control in a single architecture, yet how they translate multimodal inputs into actions remains poorly understood. We apply activation injection, sparse…

Robotics · Computer Science 2026-03-20 Bryce Grant , Xijia Zhao , Peng Wang

Flow-based vision-language-action (VLA) policies offer strong expressivity for action generation, but suffer from a fundamental inefficiency: multi-step inference is required to recover action structure from uninformative Gaussian noise,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Fan Du , Feng Yan , Jianxiong Wu , Xinrun Xu , Weiye Zhang , Weinong Wang , Yu Guo , Bin Qian , Zhihai He , Fei Wang , Heng Yang

Vision-Language-Action (VLA) models have emerged as a promising paradigm for general-purpose robotic manipulation, leveraging large-scale pre-training to achieve strong performance. The field has rapidly evolved with additional spatial…

Robotics · Computer Science 2026-02-23 Yuankai Luo , Woping Chen , Tong Liang , Baiqiao Wang , Zhenguo Li

In this paper, we introduce an innovative vector quantization based action tokenizer built upon the largest-scale action trajectory dataset to date, leveraging over 100 times more data than previous approaches. This extensive dataset…

Robotics · Computer Science 2025-07-02 Yating Wang , Haoyi Zhu , Mingyu Liu , Jiange Yang , Hao-Shu Fang , Tong He

Large foundation models have shown strong open-world generalization to complex problems in vision and language, but similar levels of generalization have yet to be achieved in robotics. One fundamental challenge is the lack of robotic data,…

Vision-Language-Action (VLA) models are emerging as a next-generation paradigm for robotics. We introduce dVLA, a diffusion-based VLA that leverages a multimodal chain-of-thought to unify visual perception, language reasoning, and robotic…

Robotics · Computer Science 2025-10-01 Junjie Wen , Minjie Zhu , Jiaming Liu , Zhiyuan Liu , Yicun Yang , Linfeng Zhang , Shanghang Zhang , Yichen Zhu , Yi Xu

Vision-Language-Action (VLA) models have shown strong promise for general-purpose robotic manipulation, but their real-world evaluation remains limited by a lack of accessible, reproducible, and consistent benchmarks. Simulation benchmarks…

Robotics · Computer Science 2026-05-21 Alex S. Huang , Jiahui Zhang , Shiqing Tang , Yu Xiang

Magnetically actuated microrobots have been used as wireless, non-contact manipulation tools at microscales, making them promising for minimally invasive applications. However, their control remains challenging due to indirect actuation,…

Robotics · Computer Science 2026-05-28 Yongchen Wang , Kangyi Lu , Lan Wei , Dandan Zhang

Vision-language-action (VLA) models have significantly advanced robotic manipulation by integrating vision-language models (VLMs), and action decoders into a unified architecture. However, their deployment on resource-constrained edge…

Robotics · Computer Science 2025-10-30 Jiahong Chen , Jing Wang , Long Chen , Chuwei Cai , Jinghui Lu

Vision-Language-Action (VLA) models have recently enabled robotic manipulation by grounding visual and linguistic cues into actions. However, most VLAs assume the Markov property, relying only on the current observation and thus suffering…

Vision Language Action (VLA) models represent a transformative shift in robotics, with the aim of unifying visual perception, natural language understanding, and embodied control within a single learning framework. This review presents a…

Robotics · Computer Science 2026-01-21 Muhayy Ud Din , Waseem Akram , Lyes Saad Saoud , Jan Rosell , Irfan Hussain

Vision-Language-Action (VLA) models have rapidly converged on a small set of architectural patterns: discrete-token autoregression (e.g. OpenVLA) and continuous-action flow-matching (e.g. pi-0.5). Yet preference alignment via Direct…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Zhi Liu

Current Vision-Language-Action (VLA) models predominantly rely on end-to-end fine-tuning. While effective, this paradigm compromises the inherent generalization capabilities of Vision-Language Models (VLMs) and incurs catastrophic…

Vision-language-action (VLA) models have recently emerged as a promising paradigm for robotic control, enabling end-to-end policies that ground natural language instructions into visuomotor actions. However, current VLAs often struggle to…

Robotics · Computer Science 2025-09-18 Zijian An , Ran Yang , Yiming Feng , Lifeng Zhou

Vision-language-action (VLA) models have shown strong generalization for robotic action prediction through large-scale vision-language pretraining. However, most existing models rely solely on RGB cameras, limiting their perception and,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Heyu Guo , Shanmu Wang , Ruichun Ma , Shiqi Jiang , Yasaman Ghasempour , Omid Abari , Baining Guo , Lili Qiu

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