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Main Authors: Cekinmez, Jasin, Mitsuhashi, Ryo, Wu, Addison J., Yin, Yida
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2605.25254
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author Cekinmez, Jasin
Mitsuhashi, Ryo
Wu, Addison J.
Yin, Yida
author_facet Cekinmez, Jasin
Mitsuhashi, Ryo
Wu, Addison J.
Yin, Yida
contents With unified model-generated images now widespread online, attributing their model of origin offers a path toward transparency and deeper insight into the characteristic behaviors of individual models. Prior work has explored provenance in LLM-generated text, diffusion model images, and datasets, but the separability of unified model-generated images remains an underexplored area. We address this gap by examining separability across corruption, domains, and prompt languages using images generated by seven unified models. We show that model attribution is highly feasible as our model achieves near-perfect accuracy with around 20K images per model. Corruptions and structural perturbations have only a modest effect on attribution performance, and cross-domain generalization reveals that semantic content contributes to separability but is not the dominant signal. Finally, we observe that for most models, prompt language attribution is around chance levels, suggesting minimal language-specific visual signatures. These findings highlight consistent model-specific visual characteristics in unified models outputs and open new directions for tracing and auditing generative image pipelines.
format Preprint
id arxiv_https___arxiv_org_abs_2605_25254
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Guess the Unified Model: How Much Can We Recover from Generated Images?
Cekinmez, Jasin
Mitsuhashi, Ryo
Wu, Addison J.
Yin, Yida
Computer Vision and Pattern Recognition
Artificial Intelligence
With unified model-generated images now widespread online, attributing their model of origin offers a path toward transparency and deeper insight into the characteristic behaviors of individual models. Prior work has explored provenance in LLM-generated text, diffusion model images, and datasets, but the separability of unified model-generated images remains an underexplored area. We address this gap by examining separability across corruption, domains, and prompt languages using images generated by seven unified models. We show that model attribution is highly feasible as our model achieves near-perfect accuracy with around 20K images per model. Corruptions and structural perturbations have only a modest effect on attribution performance, and cross-domain generalization reveals that semantic content contributes to separability but is not the dominant signal. Finally, we observe that for most models, prompt language attribution is around chance levels, suggesting minimal language-specific visual signatures. These findings highlight consistent model-specific visual characteristics in unified models outputs and open new directions for tracing and auditing generative image pipelines.
title Guess the Unified Model: How Much Can We Recover from Generated Images?
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2605.25254