{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T04:59:18Z","timestamp":1790657958075,"version":"4.1.0"},"reference-count":168,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Robot. AI"],"abstract":"<jats:p>Diffusion models are a powerful class of generative models that emerge in recent years to transform Gaussian noise into samples of the target distribution through an iterative denoising process. Due to the high training stability and powerful generative capabilities, diffusion models have surpassed previous generative models and demonstrate potential applications in the field of robotics. In the past few years, this area has gained increasing attention, and the number of studies applying diffusion models to the field of robotics has grown exponentially. This review aims to provide an overview of this emerging field, helping researchers understand the current state of development, with the hope of inspiring new research directions. First, we overview the foundation of diffusion models along with their development in recent years. On this basis, we provide an overview of the application of diffusion modeling in robotics from four macro dimensions: environmental data preparation, decision-making control paradigms including reinforcement and imitation learning, high-level cognitive reasoning for task planning, and specialized mechanical or sensory applications. We discuss and summarize the innovations, contributions, and limitations of these works. We then discuss the limitations and challenges faced by the field in terms of safety issues, real-time inference and model size, simulation to the real world gap, datasets and unified benchmarks, and embodied foundation models. Finally, we summarize the review and provide an insight into future research directions.<\/jats:p>","DOI":"10.3389\/frobt.2026.1905499","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T04:39:35Z","timestamp":1790656775000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Diffusion models in robotics: a comprehensive review"],"prefix":"10.3389","volume":"13","author":[{"given":"Linxin","family":"Bai","sequence":"first","affiliation":[{"name":"College of Biomedical Engineering, Fudan University","place":["Shanghai, China"]},{"name":"Shanghai Key Laboratory of Medical Image Computing and Computer Assisted Intervention, Fudan University","place":["Shanghai, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenkang","family":"Du","sequence":"additional","affiliation":[{"name":"College of Biomedical Engineering, Fudan University","place":["Shanghai, China"]},{"name":"Shanghai Key Laboratory of Medical Image Computing and Computer Assisted Intervention, Fudan University","place":["Shanghai, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinfang","family":"Wang","sequence":"additional","affiliation":[{"name":"General Hospital of Ningxia Medical University","place":["Yinchuan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinrong","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Biomedical Engineering, Fudan University","place":["Shanghai, China"]},{"name":"Shanghai Key Laboratory of Medical Image Computing and Computer Assisted Intervention, Fudan University","place":["Shanghai, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,9,29]]},"reference":[{"key":"B1","first-page":"22","article-title":"Constrained policy optimization","volume-title":"International Conference on Machine Learning","author":"Achiam","year":"2017"},{"key":"B2","doi-asserted-by":"crossref","DOI":"10.1109\/LRA.2024.3363530","article-title":"Diffusion policies for out-of-distribution generalization in offline reinforcement learning","author":"Ada","year":"2024","journal-title":"IEEE Robotics Automation Lett"},{"key":"B3","volume-title":"Agibot World Colosseo: A large-scale Manipulation Platform for Scalable and Intelligent Embodied Systems","author":"Bu","year":"2025"},{"key":"B4","article-title":"Is conditional generative modeling all you need for decision making?","volume-title":"The Eleventh International Conference on Learning Representations","author":"Ajay","year":""},{"key":"B5","first-page":"22304","article-title":"Compositional foundation models for hierarchical planning","volume":"36","author":"Ajay","year":"","journal-title":"Adv. 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