titleMODUS: Decoder-Only Any-to-Any Modeling of Diverse Modalities
authorsMingqiao Ye, Zhaochong An, Zhitong Gao, Xian Liu, François Fleuret, Chuan Li, Amir Zadeh, Serge Belongie, Afshin Dehghan, Jesse Allardice, David Mizrahi, Oğuzhan Fatih Kar, Roman Bachmann, Amir Zamir
date2026-07-28
venuearXiv (preprint, not peer reviewed)
idarXiv:2607.25948
affiliationEPFL VILAB
upvotes13 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf code
abstractAny-to-any models predict any modality from any combination of others within a single network, a formulation used in multimodal vision and vision-language models, and increasingly in scientific domains such as ecology and astronomy. Existing any-to-any models are typically trained from scratch using encoder-decoder or diffusion architectures, impacting their performance and preventing them from using strong pre-trained decoder-only models as a prior. In this work, we investigate decoder-only any-to-any multimodal modeling, which treats all modalities symmetrically and supports arbitrary modalities as inputs and outputs without modality-specific heads, losses, or task pipelines. Because every modality is both an input and an output of the same model, the resulting model, named Modus, can support a range of applications, such as chained generation through intermediate modalities or cross-modal self-verification by scoring the model's own outputs with another generated modality. Modus demonstrates strong out-of-the-box performance and is competitive with specialist and multitask baselines using a single model across various benchmarks. All materials are open-sourced at https://modus-multimodal.epfl.ch/.

cite

@misc{ye2026modus,
  title={MODUS: Decoder-Only Any-to-Any Modeling of Diverse Modalities},
  author={Mingqiao Ye and Zhaochong An and Zhitong Gao and Xian Liu and François Fleuret and Chuan Li and Amir Zadeh and Serge Belongie and Afshin Dehghan and Jesse Allardice and David Mizrahi and Oğuzhan Fatih Kar and Roman Bachmann and Amir Zamir},
  year={2026},
  eprint={2607.25948},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2607.25948}
}