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Unified multimodal models (UMMs) were designed to combine the reasoning ability of large language models (LLMs) with the generation capability of vision models. In practice, however, this synergy remains elusive: UMMs fail to transfer…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Songlin Yang , Xianghao Kong , Anyi Rao

Medical diagnostic applications require models that can process multimodal medical inputs (images, patient histories, lab results) and generate diverse outputs including both textual reports and visual content (annotations, segmentation…

The emergence of unified multimodal understanding and generation models is rapidly attracting attention because of their ability to enhance instruction-following capabilities while minimizing model redundancy. However, there is a lack of a…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Yi Li , Haonan Wang , Qixiang Zhang , Boyu Xiao , Chenchang Hu , Hualiang Wang , Xiaomeng Li

The long-standing goal of multimodal AI is to build unified models in which visual understanding and visual generation mutually enhance one another. Despite recent works such as BAGEL, BLIP3o achieves remarkable progress; In practice,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Yujun Tong , Dongliang Chang , Zijin Yin , Xintong Liu , Yuanchen Fang , Zhanyu Ma

We present UniModel, a unified generative model that jointly supports visual understanding and visual generation within a single pixel-to-pixel diffusion framework. Our goal is to achieve unification along three axes: the model, the tasks,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Chi Zhang , Jiepeng Wang , Youming Wang , Yuanzhi Liang , Xiaoyan Yang , Zuoxin Li , Haibin Huang , Xuelong Li

Unified models (UMs) hold promise for their ability to understand and generate content across heterogeneous modalities. Compared to merely generating visual content, the use of UMs for interleaved cross-modal reasoning is more promising and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Jiachun Jin , Zetong Zhou , Xiao Yang , Hao Zhang , Pengfei Liu , Jun Zhu , Zhijie Deng

While Unified Multimodal Models (UMMs) have achieved remarkable success in cross-modal comprehension, a significant gap persists in their ability to leverage such internal knowledge for high-quality generation. We formalize this discrepancy…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Ruiyan Han , Zhen Fang , XinYu Sun , Yuchen Ma , Ziheng Wang , Yu Zeng , Zehui Chen , Lin Chen , Wenxuan Huang , Wei-Jie Xu , Yi Cao , Feng Zhao

Existing MLLM benchmarks face significant challenges in evaluating Unified MLLMs (U-MLLMs) due to: 1) lack of standardized benchmarks for traditional tasks, leading to inconsistent comparisons; 2) absence of benchmarks for mixed-modality…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Wulin Xie , Yi-Fan Zhang , Chaoyou Fu , Yang Shi , Bingyan Nie , Hongkai Chen , Zhang Zhang , Liang Wang , Tieniu Tan

Multimodal learning has been a field of increasing interest, aiming to combine various modalities in a single joint representation. Especially in the area of visiolinguistic (VL) learning multiple models and techniques have been developed,…

Machine Learning · Computer Science 2024-03-26 Maria Lymperaiou , Giorgos Stamou

Recent time series modeling faces a sharp divide between numerical generation and semantic understanding, with research showing that generation models often rely on superficial pattern matching, while understanding-oriented models struggle…

Machine Learning · Computer Science 2026-02-20 Tong Guan , Sheng Pan , Johan Barthelemy , Zhao Li , Yujun Cai , Cesare Alippi , Ming Jin , Shirui Pan

Current research in multimodal models faces a key challenge where enhancing generative capabilities often comes at the expense of understanding, and vice versa. We analyzed this trade-off and identify the primary cause might be the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Sen Ye , Mengde Xu , Shuyang Gu , Di He , Liwei Wang , Han Hu

Unified multimodal models integrate the reasoning capacity of large language models with both image understanding and generation, showing great promise for advanced multimodal intelligence. However, the community still lacks a rigorous…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Hongxiang Li , Yaowei Li , Bin Lin , Yuwei Niu , Yuhang Yang , Xiaoshuang Huang , Jiayin Cai , Xiaolong Jiang , Yao Hu , Long Chen

Multimodal learning enables neural networks to integrate information from heterogeneous sources, but active learning in this setting faces distinct challenges. These include missing modalities, differences in modality difficulty, and…

Machine Learning · Computer Science 2026-04-01 Dustin Eisenhardt , Yunhee Jeong , Florian Buettner

Existed pre-training methods either focus on single-modal tasks or multi-modal tasks, and cannot effectively adapt to each other. They can only utilize single-modal data (i.e. text or image) or limited multi-modal data (i.e. image-text…

Computation and Language · Computer Science 2022-03-15 Wei Li , Can Gao , Guocheng Niu , Xinyan Xiao , Hao Liu , Jiachen Liu , Hua Wu , Haifeng Wang

Multimodal learning, integrating histology images and genomics, promises to enhance precision oncology with comprehensive views at microscopic and molecular levels. However, existing methods may not sufficiently model the shared or…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Huahui Yi , Xiaofei Wang , Kang Li , Chao Li

Unifying multimodal understanding and generation has shown impressive capabilities in cutting-edge proprietary systems. In this work, we introduce BAGEL, an open-source foundational model that natively supports multimodal understanding and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Chaorui Deng , Deyao Zhu , Kunchang Li , Chenhui Gou , Feng Li , Zeyu Wang , Shu Zhong , Weihao Yu , Xiaonan Nie , Ziang Song , Guang Shi , Haoqi Fan

Unified Multimodal Models (UMMs) built on shared autoregressive (AR) transformers are attractive for their architectural simplicity. However, we identify a critical limitation: when trained on multimodal inputs, modality-shared transformers…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Jitai Hao , Hao Liu , Xinyan Xiao , Qiang Huang , Jun Yu

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…

Unified multimodal models (UMMs) have emerged as a powerful paradigm for seamlessly unifying text and image understanding and generation. However, prevailing evaluations treat these abilities in isolation, such that tasks with multimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Yongyuan Liang , Wei Chow , Feng Li , Ziqiao Ma , Xiyao Wang , Jiageng Mao , Jiuhai Chen , Jiatao Gu , Yue Wang , Furong Huang

The capability of Unified Multimodal Models (UMMs) to apply world knowledge across diverse tasks remains a critical, unresolved challenge. Existing benchmarks fall short, offering only siloed, single-task evaluations with limited diagnostic…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Jintao Lin , Bowen Dong , Weikang Shi , Chenyang Lei , Suiyun Zhang , Rui Liu , Xihui Liu