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Main Authors: Shi, Yang, Dong, Yuhao, Ding, Yue, Wang, Yuran, Zhu, Xuanyu, Zhou, Sheng, Liu, Wenting, Tian, Haochen, Wang, Rundong, Wang, Huanqian, Liu, Zuyan, Zeng, Bohan, Chen, Ruizhe, Wang, Qixun, Zhang, Zhuoran, Chen, Xinlong, Tong, Chengzhuo, Li, Bozhou, Liu, Qiang, Wang, Haotian, Yang, Wenjing, Zhang, Yuanxing, Wan, Pengfei, Zhang, Yi-Fan, Liu, Ziwei
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.24897
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author Shi, Yang
Dong, Yuhao
Ding, Yue
Wang, Yuran
Zhu, Xuanyu
Zhou, Sheng
Liu, Wenting
Tian, Haochen
Wang, Rundong
Wang, Huanqian
Liu, Zuyan
Zeng, Bohan
Chen, Ruizhe
Wang, Qixun
Zhang, Zhuoran
Chen, Xinlong
Tong, Chengzhuo
Li, Bozhou
Liu, Qiang
Wang, Haotian
Yang, Wenjing
Zhang, Yuanxing
Wan, Pengfei
Zhang, Yi-Fan
Liu, Ziwei
author_facet Shi, Yang
Dong, Yuhao
Ding, Yue
Wang, Yuran
Zhu, Xuanyu
Zhou, Sheng
Liu, Wenting
Tian, Haochen
Wang, Rundong
Wang, Huanqian
Liu, Zuyan
Zeng, Bohan
Chen, Ruizhe
Wang, Qixun
Zhang, Zhuoran
Chen, Xinlong
Tong, Chengzhuo
Li, Bozhou
Liu, Qiang
Wang, Haotian
Yang, Wenjing
Zhang, Yuanxing
Wan, Pengfei
Zhang, Yi-Fan
Liu, Ziwei
contents The integration of visual understanding and generation into unified multimodal models represents a significant stride toward general-purpose AI. However, a fundamental question remains unanswered by existing benchmarks: does this architectural unification actually enable synergetic interaction between the constituent capabilities? Existing evaluation paradigms, which primarily assess understanding and generation in isolation, are insufficient for determining whether a unified model can leverage its understanding to enhance its generation, or use generative simulation to facilitate deeper comprehension. To address this critical gap, we introduce RealUnify, a benchmark specifically designed to evaluate bidirectional capability synergy. RealUnify comprises 1,000 meticulously human-annotated instances spanning 10 categories and 32 subtasks. It is structured around two core axes: 1) Understanding Enhances Generation, which requires reasoning (e.g., commonsense, logic) to guide image generation, and 2) Generation Enhances Understanding, which necessitates mental simulation or reconstruction (e.g., of transformed or disordered visual inputs) to solve reasoning tasks. A key contribution is our dual-evaluation protocol, which combines direct end-to-end assessment with a diagnostic stepwise evaluation that decomposes tasks into distinct understanding and generation phases. This protocol allows us to precisely discern whether performance bottlenecks stem from deficiencies in core abilities or from a failure to integrate them. Through large-scale evaluations of 12 leading unified models and 6 specialized baselines, we find that current unified models still struggle to achieve effective synergy, indicating that architectural unification alone is insufficient. These results highlight the need for new training strategies and inductive biases to fully unlock the potential of unified modeling.
format Preprint
id arxiv_https___arxiv_org_abs_2509_24897
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle RealUnify: Do Unified Models Truly Benefit from Unification? A Comprehensive Benchmark
Shi, Yang
Dong, Yuhao
Ding, Yue
Wang, Yuran
Zhu, Xuanyu
Zhou, Sheng
Liu, Wenting
Tian, Haochen
Wang, Rundong
Wang, Huanqian
Liu, Zuyan
Zeng, Bohan
Chen, Ruizhe
Wang, Qixun
Zhang, Zhuoran
Chen, Xinlong
Tong, Chengzhuo
Li, Bozhou
Liu, Qiang
Wang, Haotian
Yang, Wenjing
Zhang, Yuanxing
Wan, Pengfei
Zhang, Yi-Fan
Liu, Ziwei
Artificial Intelligence
The integration of visual understanding and generation into unified multimodal models represents a significant stride toward general-purpose AI. However, a fundamental question remains unanswered by existing benchmarks: does this architectural unification actually enable synergetic interaction between the constituent capabilities? Existing evaluation paradigms, which primarily assess understanding and generation in isolation, are insufficient for determining whether a unified model can leverage its understanding to enhance its generation, or use generative simulation to facilitate deeper comprehension. To address this critical gap, we introduce RealUnify, a benchmark specifically designed to evaluate bidirectional capability synergy. RealUnify comprises 1,000 meticulously human-annotated instances spanning 10 categories and 32 subtasks. It is structured around two core axes: 1) Understanding Enhances Generation, which requires reasoning (e.g., commonsense, logic) to guide image generation, and 2) Generation Enhances Understanding, which necessitates mental simulation or reconstruction (e.g., of transformed or disordered visual inputs) to solve reasoning tasks. A key contribution is our dual-evaluation protocol, which combines direct end-to-end assessment with a diagnostic stepwise evaluation that decomposes tasks into distinct understanding and generation phases. This protocol allows us to precisely discern whether performance bottlenecks stem from deficiencies in core abilities or from a failure to integrate them. Through large-scale evaluations of 12 leading unified models and 6 specialized baselines, we find that current unified models still struggle to achieve effective synergy, indicating that architectural unification alone is insufficient. These results highlight the need for new training strategies and inductive biases to fully unlock the potential of unified modeling.
title RealUnify: Do Unified Models Truly Benefit from Unification? A Comprehensive Benchmark
topic Artificial Intelligence
url https://arxiv.org/abs/2509.24897