Research archive

Publications

A selection of papers and open projects. For the complete and most up-to-date list, see Google Scholar ↗.

2026

Technical report 2026

Flora: An Open Model Suite for Scaling Robotics Data Engines

Sicong Leng, Yunze Man, Zhiqi Li, Jing Wang, Yuhe Zhang, Ryan Punamiya, Siddharth Patki, Kaiyuan Zheng, Zi-ang Cao, Zhiding Yu, Sifei Liu, Danfei Xu, Ben Levin, Jan Kautz, Yuke Zhu, Johan Bjorck, Linxi "Jim" Fan

paper project model

arXiv 2026

RynnBrain 1.1: Towards More Capable and Generalizable Embodied Foundation Model

Kehan Li, Bohan Hou, Minghao Zhu, Tianyi Zhang, Zesen Cheng, Zhikai Wang, Sicong Leng, Xin Li, Xiao Lin, Biying Yao, Minghua Zeng, Jiangpin Liu, Ronghao Dang, Jiayan Guo, Siteng Huang, Haoyu Zhao, Heng Ping, Yaxi Zhao, Tong Zhao, Kexiang Wang, Tong Lu, Shengke Xue, Jiahao Tang, Yulei Wang, Zejing Wang, Jianwei Gao, Shijian Lu, Chengju Liu, Jianfei Yang, Mingxiu Chen, Deli Zhao

paper project code model

arXiv 2026

Vesta: A Generalist Embodied Reasoning Model

Johan Bjorck, Zhiqi Li, Yunze Man, Jing Wang, An-Chieh Cheng, Sifei Liu, Shihao Wang, Zhiding Yu, Abhishek Badki, Stan Birchfield, Valts Blukis, Yevgen Chebotar, Siyi Chen, Sicong Leng, Yu-Cheng Chou, Tianli Ding, Boyi Li, Zhengyi Luo, Hang Su, Jonathan Tremblay, Tingwu Wang, Bowen Wen, Jimmy Wu, Xianghui Xie, Hanrong Ye, Hongxu Yin, K.R. Zentner, Liangyan Gui, Yu-Xiong Wang, Yuke Zhu, Linxi "Jim" Fan, Jan Kautz

paper project

ArXiv 2026

RynnBrain: Open Embodied Foundation Models

Ronghao Dang*, Jiayan Guo*, Bohan Hou*, Sicong Leng*, Kehan Li*, Xin Li*, Jiangping Liu*, Yunxuan Mao*, Zhikai Wang*, Yuqian Yuan*, Minghao Zhu*, Xiao Lin, Yang Bai, Qian Jiang, Yaxi Zhao, Minghua Zeng, Junlong Gao, Yuming Jiang, Jun Cen, Siteng Huang, Liuyi Wang, Wenqiao Zhang, Chengju Liu, Jianfei Yang, Shijian Lu, Deli Zhao

paper code project

CVPR 2026

MMR1: Enhancing Multimodal Reasoning with Variance-Aware Sampling and Open Resources

Sicong Leng*, Jing Wang*, Jiaxi Li*, Hao Zhang*, Zhiqiang Hu, Boqiang Zhang, Yuming Jiang, Hang Zhang, Xin Li, Lidong Bing, Deli Zhao, Wei Lu, Yu Rong, Aixin Sun, Shijian Lu

paper code data model

ICRA 2026

RynnVLA-001: Using Human Demonstrations to Improve Robot Manipulation

Yuming Jiang, Siteng Huang, Shengke Xue, Yaxi Zhao, Jun Cen, Sicong Leng, Kehan Li, Jiayan Guo, Kexiang Wang, Mingxiu Chen, Fan Wang, Deli Zhao, Xin Li

paper code

2025

ArXiv 2025

VideoLLaMA 3: Frontier Multimodal Foundation Models for Image and Video Understanding

Boqiang Zhang*, Kehan Li*, Zesen Cheng*, Zhiqiang Hu*, Yuqian Yuan*, Guanzheng Chen*, Sicong Leng*, Yuming Jiang*, Hang Zhang*, Xin Li*, Peng Jin, Wenqi Zhang, Fan Wang, Lidong Bing, Deli Zhao

paper code

CVPR 2025 · Highlight

Breaking the Memory Barrier: Near Infinite Batch Size Scaling for Contrastive Loss

Zesen Cheng, Hang Zhang, Kehan Li, Sicong Leng, Zhiqiang Hu, Fei Wu, Deli Zhao, Xin Li, Lidong Bing

paper code

NeurIPS 2025

The Curse of Multi-Modalities: Evaluating Hallucinations of Large Multimodal Models across Language, Visual, and Audio

Sicong Leng*, Yun Xing*, Zesen Cheng*, Yang Zhou, Hang Zhang, Xin Li, Deli Zhao, Shijian Lu, Chunyan Miao, Lidong Bing

paper code project

2024

ArXiv 2024

VideoLLaMA 2: Advancing Spatial-Temporal Modeling and Audio Understanding in Video-LLMs

Zesen Cheng*, Sicong Leng*, Hang Zhang*, Yifei Xin*, Xin Li*, Guanzheng Chen, Yongxin Zhu, Wenqi Zhang, Ziyang Luo, Deli Zhao, Lidong Bing

paper code

CVPR 2024 · Highlight

Mitigating Object Hallucinations in Large Vision-Language Models through Visual Contrastive Decoding

Sicong Leng*, Hang Zhang*, Guanzheng Chen, Xin Li, Shijian Lu, Chunyan Miao, Lidong Bing

paper code

2023

ACL 2023 · Area Chair Award · Best Paper Nomination · Oral

Tell2Design: A Dataset for Language-Guided Floor Plan Generation

Sicong Leng*, Yang Zhou*, Mohammed Haroon Dupty, Wee Sun Lee, Sam Conrad Joyce, Wei Lu

paper code