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In this paper, we propose GTA-VLA(Guide, Think, Act), an interactive Vision-Language-Action (VLA) framework that enables spatially steerable embodied reasoning by allowing users to guide robot policies with explicit visual cues. Existing…

Robotics · Computer Science 2026-05-14 Yiran Ling , Qing Lian , Jinghang Li , Qing Jiang , Tianming Zhang , Xiaoke Jiang , Chuanxiu Liu , Jie Liu , Lei Zhang

We propose a standalone autoregressive (AR) Action Expert that generates actions as a continuous causal sequence while conditioning on refreshable vision-language prefixes. In contrast to existing Vision-Language-Action (VLA) models and…

Vision-Language-Action (VLA) models have shown remarkable progress in embodied tasks recently, but most methods process visual observations independently at each timestep. This history-agnostic design treats robot manipulation as a Markov…

Machine Learning · Computer Science 2026-04-13 Lei Xiao , Jifeng Li , Juntao Gao , Feiyang Ye , Yan Jin , Jingjing Qian , Jing Zhang , Yong Wu , Xiaoyuan Yu

In many RL applications, ensuring an agent's actions adhere to constraints is crucial for safety. Most previous methods in Action-Constrained Reinforcement Learning (ACRL) employ a projection layer after the policy network to correct the…

Machine Learning · Computer Science 2025-02-18 Janaka Chathuranga Brahmanage , Jiajing Ling , Akshat Kumar

Vision-Language-Action (VLA) models are emerging as a promising paradigm for end-to-end autonomous driving, valued for their potential to leverage world knowledge and reason about complex driving scenes. However, existing methods suffer…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Xinyang Wang , Qian Liu , Wenjie Ding , Zhao Yang , Wei Li , Chang Liu , Bailin Li , Kun Zhan , Xianpeng Lang , Wei Chen

Robot foundation models, particularly Vision-Language-Action (VLA) models, have garnered significant attention for their ability to enhance robot policy learning, greatly improving robot's generalization and robustness. OpenAI's recent…

Vision-Language-Action (VLA) models adapt large vision-language backbones to map images and instructions into robot actions. However, prevailing VLAs either generate actions auto-regressively in a fixed left-to-right order or attach…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Zhixuan Liang , Yizhuo Li , Tianshuo Yang , Chengyue Wu , Sitong Mao , Tian Nian , Liuao Pei , Shunbo Zhou , Xiaokang Yang , Jiangmiao Pang , Yao Mu , Ping Luo

Vision-Language-Action models have emerged as essential generalist robot policies for diverse manipulation tasks, conventionally relying on directly translating multimodal inputs into actions via Vision-Language Model embeddings. Recent…

Robotics · Computer Science 2026-03-31 Linqing Zhong , Yi Liu , Yifei Wei , Ziyu Xiong , Maoqing Yao , Si Liu , Guanghui Ren

Executing language-conditioned tasks in dynamic visual environments remains a central challenge in embodied AI. Existing Vision-Language-Action (VLA) models predominantly adopt reactive state-to-action mappings, often leading to…

Robotics · Computer Science 2025-09-10 Qi Lv , Weijie Kong , Hao Li , Jia Zeng , Zherui Qiu , Delin Qu , Haoming Song , Qizhi Chen , Xiang Deng , Jiangmiao Pang

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

We propose Avi, a novel 3D Vision-Language-Action (VLA) architecture that reframes robotic action generation as a problem of 3D perception and spatial reasoning, rather than low-level policy learning. While existing VLA models primarily…

Robotics · Computer Science 2025-10-28 Harris Song , Long Le

Asynchronous execution is essential for scaling reinforcement learning (RL) to modern large model workloads, including large language models and AI agents, but it can fundamentally alter RL optimization behavior. While prior work on…

Machine Learning · Computer Science 2026-03-03 Haofeng Xu , Junwei Su , Yukun Tian , Lansong Diao , Zhengping Qian , Chuan Wu

Continual learning in robotics seeks systems that can constantly adapt to changing environments and tasks, mirroring human adaptability. A key challenge is refining dynamics models, essential for planning and control, while addressing…

Robotics · Computer Science 2025-09-09 Alejandro Murillo-Gonzalez , Lantao Liu

Visual Language Action (VLA) models are a multi-modal class of Artificial Intelligence (AI) systems that integrate visual perception, natural language understanding, and action planning to enable agents to interpret their environment,…

Software Engineering · Computer Science 2025-08-04 Pablo Valle , Chengjie Lu , Shaukat Ali , Aitor Arrieta

Vision-Language-Action (VLA) models have emerged as a popular paradigm for learning robot manipulation policies that can follow language instructions and generalize to novel scenarios. Recent works have begun to explore the incorporation of…

Generative Behavior Cloning (GBC) is a simple yet effective framework for robot learning, particularly in multi-task settings. Recent GBC methods often employ diffusion policies with open-loop (OL) control, where actions are generated via a…

Robotics · Computer Science 2025-10-15 Junhyuk So , Chiwoong Lee , Shinyoung Lee , Jungseul Ok , Eunhyeok Park

Diffusion-based models for robotic control, including vision-language-action (VLA) and vision-action (VA) policies, have demonstrated significant capabilities. Yet their advancement is constrained by the high cost of acquiring large-scale…

Vision-Language-Action (VLA) policies excel in aligning language, perception, and robot control. However, most VLAs are trained purely by imitation, which overfits to demonstrations, and is brittle under distribution shift. Reinforcement…

Robotics · Computer Science 2025-11-26 Jiahui Zhang , Ze Huang , Chun Gu , Zipei Ma , Li Zhang

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 trained on large robot datasets promise general-purpose, robust control across diverse domains and embodiments. However, existing approaches often fail out-of-the-box when deployed in novel environments,…

Robotics · Computer Science 2025-10-21 Ruihan Zhao , Tyler Ingebrand , Sandeep Chinchali , Ufuk Topcu