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Video generation is a critical pathway toward world models, with efficient long video inference as a key capability. Toward this end, we introduce LongCat-Video, a foundational video generation model with 13.6B parameters, delivering strong…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Meituan LongCat Team , Xunliang Cai , Qilong Huang , Zhuoliang Kang , Hongyu Li , Shijun Liang , Liya Ma , Siyu Ren , Xiaoming Wei , Rixu Xie , Tong Zhang

We present Qwen-Image, an image generation foundation model in the Qwen series that achieves significant advances in complex text rendering and precise image editing. To address the challenges of complex text rendering, we design a…

Rapid advancement of diffusion models has catalyzed remarkable progress in the field of image generation. However, prevalent models such as Flux, SD3.5 and Midjourney, still grapple with issues like model bias, limited text rendering…

We introduce LongCat-Flash-Omni, a state-of-the-art open-source omni-modal model with 560 billion parameters, excelling at real-time audio-visual interaction. By adopting a curriculum-inspired progressive training strategy that transitions…

Multimedia · Computer Science 2025-12-01 Meituan LongCat Team , Bairui Wang , Bayan , Bin Xiao , Bo Zhang , Bolin Rong , Borun Chen , Chang Wan , Chao Zhang , Chen Huang , Chen Chen , Chen Chen , Chengxu Yang , Chengzuo Yang , Cong Han , Dandan Peng , Delian Ruan , Detai Xin , Disong Wang , Dongchao Yang , Fanfan Liu , Fengjiao Chen , Fengyu Yang , Gan Dong , Gang Huang , Gang Xu , Guanglu Wan , Guoqiang Tan , Guoqiao Yu , Haibo Qiu , Hao Lu , Hongbo Liu , Hongyu Xiang , Jiaheng Wu , Jian Yang , Jiaxing Liu , Jing Huang , Jingang Wang , Jinrui Ding , Juchao Jiang , Jun Kuang , Jun Wang , Junhui Mei , Ke Ding , Kefeng Zhang , Lei Chen , Liang Shi , Limeng Qiao , Liming Zheng , Lin Ma , Liuyang Guo , Liya Ma , Luying Sun , Man Gao , Mengshen Zhu , Miao Cao , Minliang Lin , Nuo Xu , Peng Shi , Qi Zhang , Qian Fang , Qian Wang , Qian Yang , Quanxiu Wang , Rongxiang Weng , Rongxin Guo , Ruoxuan Liang , Senbin Yang , Shanbo Xu , Shanglin Lei , Shengze Ye , Shimin Chen , Shuaiqi Chen , Shujie Hu , Shuo Li , Siqi Yang , Siyu Xu , Siyu Ren , Song Li , Songxiang Liu , Tianhao Bai , Tianye Dai , Wei Hong , Wei Wang , Weixiao Zhao , Wengang Cao , Wenlong Zhu , Wenlong He , Xi Su , Xi Nan , Xiaohan Zhao , Xiaohao Wang , Xiaoyu Zhao , Xiaoyu Wang , Xiaoyu Li , Xin Pan , Xin Chen , Xiusong Sun , Xu Xiang , Xudong Xing , Xuezhi Cao , Xunliang Cai , Yang Yang , Yanli Tan , Yao Yao , Yerui Sun , Yi Chen , Yifan Lu , Yin Gong , Yining Zhang , Yitian Chen , Yiyang Gan , Yuchen Tang , Yuchen Xie , Yueqian Wang , Yuewen Zheng , Yufei Zhang , Yufeng Zhong , Yulei Qian , Yuqi Peng , Yuqian Li , Yuwei Jiang , Zeyang Hu , Zheng Zhang , Zhengkun Tian , Zhiqing Hong , Zhixiong Zeng , Zhuqi Mi , Ziran Li , Ziwen Wang , Ziyi Zhao , Ziyuan Zhuang , Zizhe Zhao

We present Qwen-Image-2.0, an omni-capable image generation foundation model that unifies high-fidelity generation and precise image editing within a single framework. Despite recent progress, existing models still struggle with ultra-long…

We present LongCat-Flash-Thinking, an efficient 560-billion-parameter open-source Mixture-of-Experts (MoE) reasoning model. Its advanced capabilities are cultivated through a meticulously crafted training process, beginning with long…

Artificial Intelligence · Computer Science 2025-11-10 Meituan LongCat Team , Anchun Gui , Bei Li , Bingyang Tao , Bole Zhou , Borun Chen , Chao Zhang , Chao Zhang , Chengcheng Han , Chenhui Yang , Chi Zhang , Chong Peng , Chuyu Zhang , Cong Chen , Fengcun Li , Gang Xu , Guoyuan Lin , Hao Jiang , Hao Liang , Haomin Fu , Haoxiang Ma , Hong Liu , Hongyan Hao , Hongyin Tang , Hongyu Zang , Hongzhi Ni , Hui Su , Jiahao Liu , Jiahuan Li , Jialin Liu , Jianfei Zhang , Jianhao Xu , Jianing Wang , Jiaqi Sun , Jiaqi Zhang , Jiarong Shi , Jiawei Yang , Jingang Wang , Jinrui Ding , Jun Kuang , Jun Xu , Ke He , Kefeng Zhang , Keheng Wang , Keqing He , Li Wei , Liang Shi , Lin Qiu , Lingbin Kong , Lingchuan Liu , Linsen Guo , Longfei An , Mai Xia , Meng Zhou , Mengshen Zhu , Peng Pei , Pengcheng Jia , Qi Gu , Qi Guo , Qiong Huang , Quan Chen , Quanchi Weng , Rongxiang Weng , Ruichen Shao , Rumei Li , Shanglin Lei , Shuai Du , Shuaikang Liu , Shuang Zhou , Shuhao Hu , Siyu Xu , Songshan Gong , Tao Liang , Tianhao Hu , Wei He , Wei Shi , Wei Wang , Wei Wu , Wei Zhuo , Weifeng Tang , Wenjie Shi , Wenlong Zhu , Xi Su , Xiangcheng Liu , Xiangyu Xi , Xiangzhou Huang , Xiao Liu , Xiaochen Jiang , Xiaowei Shi , Xiaowen Shi , Xiaoyu Li , Xin Chen , Xinyue Zhao , Xuan Huang , Xuemiao Zhang , Xuezhi Cao , Xunliang Cai , Yajie Zhang , Yang Chen , Yang Liu , Yang Liu , Yang Zheng , Yaoming Wang , Yaqi Huo , Yerui Sun , Yifan Lu , Yiyang Li , Youshao Xiao , Yuanzhe Lei , Yuchen Xie , Yueqing Sun , Yufei Zhang , Yuhuai Wei , Yulei Qian , Yunke Zhao , Yuqing Ding , Yuwei Jiang , Zhaohua Yang , Zhengyu Chen , Zhijian Liu , Zhikang Xia , Zhongda Su , Ziran Li , Ziwen Wang , Ziyuan Zhuang , Zongyu Wang , Zunyuan Yang

We present Seedream 3.0, a high-performance Chinese-English bilingual image generation foundation model. We develop several technical improvements to address existing challenges in Seedream 2.0, including alignment with complicated prompts,…

Recent advancements in text-to-image models have significantly enhanced image generation capabilities, yet a notable gap of open-source models persists in bilingual or Chinese language support. To address this need, we present…

Computation and Language · Computer Science 2024-06-19 Xiaojun Wu , Dixiang Zhang , Ruyi Gan , Junyu Lu , Ziwei Wu , Renliang Sun , Jiaxing Zhang , Pingjian Zhang , Yan Song

We present LongCat-AudioDiT, a novel, non-autoregressive diffusion-based text-to-speech (TTS) model that achieves state-of-the-art (SOTA) performance. Unlike previous methods that rely on intermediate acoustic representations such as…

Sound · Computer Science 2026-04-01 Detai Xin , Shujie Hu , Chengzuo Yang , Chen Huang , Guoqiao Yu , Guanglu Wan , Xunliang Cai

We release and introduce the TigerBot family of large language models (LLMs), consisting of base and chat models, sized from 7, 13, 70 and 180 billion parameters. We develop our models embarking from Llama-2 and BLOOM, and push the boundary…

Computation and Language · Computer Science 2023-12-18 Ye Chen , Wei Cai , Liangmin Wu , Xiaowei Li , Zhanxuan Xin , Cong Fu

Standard multi-task benchmarks are essential for developing pretraining models that can generalize to various downstream tasks. Existing benchmarks for natural language processing (NLP) usually focus only on understanding or generating…

Computation and Language · Computer Science 2022-01-19 Jian Guan , Zhuoer Feng , Yamei Chen , Ruilin He , Xiaoxi Mao , Changjie Fan , Minlie Huang

The performance of unified multimodal models for image generation and editing is fundamentally constrained by the quality and comprehensiveness of their training data. While existing datasets have covered basic tasks like style transfer and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Zhihong Chen , Xuehai Bai , Yang Shi , Chaoyou Fu , Huanyu Zhang , Haotian Wang , Xiaoyan Sun , Zhang Zhang , Liang Wang , Yuanxing Zhang , Pengfei Wan , Yi-Fan Zhang

Scene text recognition in low-resource languages frequently faces challenges due to the limited availability of training datasets derived from real-world scenes. This study proposes a novel approach that generates text images in…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Chihiro Noguchi , Shun Fukuda , Shoichiro Mihara , Masao Yamanaka

We proposed the Chinese Text Adapter-Flux (CTA-Flux). An adaptation method fits the Chinese text inputs to Flux, a powerful text-to-image (TTI) generative model initially trained on the English corpus. Despite the notable image generation…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Yue Gong , Shanyuan Liu , Liuzhuozheng Li , Jian Zhu , Bo Cheng , Liebucha Wu , Xiaoyu Wu , Yuhang Ma , Dawei Leng , Yuhui Yin

Despite advances in audio-driven video generation, achieving commercial-grade stability remains challenging. We present LongCat-Video-Avatar 1.5, an upgraded open-source framework prioritizing systematic engineering and production-readiness…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Meituan LongCat Team , Xunliang Cai , Meng Cheng , Feng Gao , Zhe Kong , Jiamu Li , Le Li , Weiheng Li , Hongyu Liu , Shuai Tan , Xiaoming Wei , Tianyu Yang , Yong Zhang

There has been a recent spike in interest in multi-modal Language and Vision problems. On the language side, most of these models primarily focus on English since most multi-modal datasets are monolingual. We try to bridge this gap with a…

Machine Learning · Computer Science 2021-09-17 Pranav Aggarwal , Ritiz Tambi , Ajinkya Kale

We present Hunyuan-DiT, a text-to-image diffusion transformer with fine-grained understanding of both English and Chinese. To construct Hunyuan-DiT, we carefully design the transformer structure, text encoder, and positional encoding. We…

We introduce OmChat, a model designed to excel in handling long contexts and video understanding tasks. OmChat's new architecture standardizes how different visual inputs are processed, making it more efficient and adaptable. It uses a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Tiancheng Zhao , Qianqian Zhang , Kyusong Lee , Peng Liu , Lu Zhang , Chunxin Fang , Jiajia Liao , Kelei Jiang , Yibo Ma , Ruochen Xu

We introduce $\textbf{Ovis-Image}$, a 7B text-to-image model specifically optimized for high-quality text rendering, designed to operate efficiently under stringent computational constraints. Built upon our previous Ovis-U1 framework,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Guo-Hua Wang , Liangfu Cao , Tianyu Cui , Minghao Fu , Xiaohao Chen , Pengxin Zhan , Jianshan Zhao , Lan Li , Bowen Fu , Jiaqi Liu , Qing-Guo Chen

We present LingBot-World, an open-sourced world simulator stemming from video generation. Positioned as a top-tier world model, LingBot-World offers the following features. (1) It maintains high fidelity and robust dynamics in a broad…

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