SenseNova-U1: Unifying Multimodal Understanding and Generation with NEO-unify Architecture

Journal: arXiv
Published Date:

Abstract

Recent large vision-language models (VLMs) remain fundamentally constrained by a persistent dichotomy: understanding and generation are treated as distinct problems, leading to fragmented architectures, cascaded pipelines, and misaligned representation spaces. We argue that this divide is not merely an engineering artifact, but a structural limitation that hinders the emergence of native multimodal intelligence. Hence, we introduce SenseNova-U1, a native unified multimodal paradigm built upon NEO-unify, in which understanding and generation evolve as synergistic views of a single underlying process. We launch two native unified variants, SenseNova-U1-8B-MoT and SenseNova-U1-A3B-MoT, built on dense (8B) and mixture-of-experts (30B-A3B) understanding baselines, respectively. Designed from first principles, they rival top-tier understanding-only VLMs across text understanding, vision-language perception, knowledge reasoning, agentic decision-making, and spatial intelligence. Meanwhile, they deliver strong semantic consistency and visual fidelity, excelling in conventional or knowledge-intensive any-to-image (X2I) synthesis, complex text-rich infographic generation, and interleaved vision-language generation, with or without think patterns. Beyond performance, we show detailed model design, data preprocessing, pre-/post-training, and inference strategies to support community research. Last but not least, preliminary evidence demonstrates that our models extend beyond perception and generation, performing strongly in vision-language-action (VLA) and world model (WM) scenarios. This points toward a broader roadmap where models do not translate between modalities, but think and act across them in a native manner. Multimodal AI is no longer about connecting separate systems, but about building a unified one and trusting the necessary capabilities to emerge from within.

Authors

  • Haiwen Diao; Penghao Wu; Hanming Deng; Jiahao Wang; Shihao Bai; Silei Wu; Weichen Fan; Wenjie Ye; Wenwen Tong; Xiangyu Fan; Yan Li; Yubo Wang; Zhijie Cao; Zhiqian Lin; Zhitao Yang; Zhongang Cai; Yuwei Niu; Yue Zhu; Bo Liu; Chengguang Lv; Haojia Yu; Haozhe Xie; Hongli Wang; Jianan Fan; Jiaqi Li; Jiefan Lu; Jingcheng Ni; Junxiang Xu; Kaihuan Liang; Lianqiang Shi; Linjun Dai; Linyan Wang; Oscar Qian; Peng Gao; Pengfei Liu; Qingping Sun; Rui Shen; Ruisi Wang; Shengnan Ma; Shuang Yang; Siyi Xie; Siying Li; Tianbo Zhong; Xiangli Kong; Xuanke Shi; Yang Gao; Yongqiang Yao; Yves Wang; Zhengqi Bai; Zhengyu Lin; Zixin Yin; Wenxiu Sun; Ruihao Gong; Quan Wang; Lewei Lu; Lei Yang; Ziwei Liu; Dahua Lin