EMMA: Efficient Multimodal Understanding, Generation, and Editing with a Unified Architecture

Fuente: arXiv
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Hauptverfasser: He, Xin, Wei, Longhui, Ouyang, Jianbo, Liao, Minghui, Xie, Lingxi, Tian, Qi
Format: Preprint
Veröffentlicht: 2025
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author He, Xin
Wei, Longhui
Ouyang, Jianbo
Liao, Minghui
Xie, Lingxi
Tian, Qi
author_facet He, Xin
Wei, Longhui
Ouyang, Jianbo
Liao, Minghui
Xie, Lingxi
Tian, Qi
contents We propose EMMA, an efficient and unified architecture for multimodal understanding, generation and editing. Specifically, EMMA primarily consists of 1) An efficient autoencoder with a 32x compression ratio, which significantly reduces the number of tokens required for generation. This also ensures the training balance between understanding and generation tasks by applying the same compression ratio to images. 2) Channel-wise concatenation instead of token-wise concatenation among visual understanding and generation tokens, which further reduces the visual tokens in unified architectures. 3) A shared-and-decoupled network that enables mutual improvements across tasks while meeting the task-specific modeling requirements. 4) A mixture-of-experts mechanism adopted for visual understanding encoder, which substantially improves perceptual capabilities with a few parameters increase. Extensive experiments have shown that EMMA-4B can significantly outperform state-of-the-art unified multimodal approaches (e.g., BAGEL-7B) in both efficiency and performance, while also achieving competitive results compared to recent multimodal understanding and generation experts (e.g., Qwen3-VL and Qwen-Image). We believe that EMMA lays a solid foundation for the future development of unified multimodal architectures.
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id arxiv_https___arxiv_org_abs_2512_04810
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle EMMA: Efficient Multimodal Understanding, Generation, and Editing with a Unified Architecture
He, Xin
Wei, Longhui
Ouyang, Jianbo
Liao, Minghui
Xie, Lingxi
Tian, Qi
Computer Vision and Pattern Recognition
We propose EMMA, an efficient and unified architecture for multimodal understanding, generation and editing. Specifically, EMMA primarily consists of 1) An efficient autoencoder with a 32x compression ratio, which significantly reduces the number of tokens required for generation. This also ensures the training balance between understanding and generation tasks by applying the same compression ratio to images. 2) Channel-wise concatenation instead of token-wise concatenation among visual understanding and generation tokens, which further reduces the visual tokens in unified architectures. 3) A shared-and-decoupled network that enables mutual improvements across tasks while meeting the task-specific modeling requirements. 4) A mixture-of-experts mechanism adopted for visual understanding encoder, which substantially improves perceptual capabilities with a few parameters increase. Extensive experiments have shown that EMMA-4B can significantly outperform state-of-the-art unified multimodal approaches (e.g., BAGEL-7B) in both efficiency and performance, while also achieving competitive results compared to recent multimodal understanding and generation experts (e.g., Qwen3-VL and Qwen-Image). We believe that EMMA lays a solid foundation for the future development of unified multimodal architectures.
title EMMA: Efficient Multimodal Understanding, Generation, and Editing with a Unified Architecture
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2512.04810