FlowBind: Efficient Any-to-Any Generation with Bidirectional Flows

Fuente: arXiv
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Main Authors: Cha, Yeonwoo, Kim, Semin, Kwon, Jinhyeon, Hong, Seunghoon
Format: Preprint
Published: 2025
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author Cha, Yeonwoo
Kim, Semin
Kwon, Jinhyeon
Hong, Seunghoon
author_facet Cha, Yeonwoo
Kim, Semin
Kwon, Jinhyeon
Hong, Seunghoon
contents Any-to-any generation seeks to translate between arbitrary subsets of modalities, enabling flexible cross-modal synthesis. Despite recent success, existing flow-based approaches are challenged by their inefficiency, as they require large-scale datasets often with restrictive pairing constraints, incur high computational cost from modeling joint distribution, and rely on complex multi-stage training. We propose FlowBind, an efficient framework for any-to-any generation. Our approach is distinguished by its simplicity: it learns a shared latent space capturing cross-modal information, with modality-specific invertible flows bridging this latent to each modality. Both components are optimized jointly under a single flow-matching objective, and at inference the invertible flows act as encoders and decoders for direct translation across modalities. By factorizing interactions through the shared latent, FlowBind naturally leverages arbitrary subsets of modalities for training, and achieves competitive generation quality while substantially reducing data requirements and computational cost. Experiments on text, image, and audio demonstrate that FlowBind attains comparable quality while requiring up to 6x fewer parameters and training 10x faster than prior methods. The project page with code is available at https://yeonwoo378.github.io/official_flowbind.
format Preprint
id arxiv_https___arxiv_org_abs_2512_15420
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle FlowBind: Efficient Any-to-Any Generation with Bidirectional Flows
Cha, Yeonwoo
Kim, Semin
Kwon, Jinhyeon
Hong, Seunghoon
Machine Learning
Any-to-any generation seeks to translate between arbitrary subsets of modalities, enabling flexible cross-modal synthesis. Despite recent success, existing flow-based approaches are challenged by their inefficiency, as they require large-scale datasets often with restrictive pairing constraints, incur high computational cost from modeling joint distribution, and rely on complex multi-stage training. We propose FlowBind, an efficient framework for any-to-any generation. Our approach is distinguished by its simplicity: it learns a shared latent space capturing cross-modal information, with modality-specific invertible flows bridging this latent to each modality. Both components are optimized jointly under a single flow-matching objective, and at inference the invertible flows act as encoders and decoders for direct translation across modalities. By factorizing interactions through the shared latent, FlowBind naturally leverages arbitrary subsets of modalities for training, and achieves competitive generation quality while substantially reducing data requirements and computational cost. Experiments on text, image, and audio demonstrate that FlowBind attains comparable quality while requiring up to 6x fewer parameters and training 10x faster than prior methods. The project page with code is available at https://yeonwoo378.github.io/official_flowbind.
title FlowBind: Efficient Any-to-Any Generation with Bidirectional Flows
topic Machine Learning
url https://arxiv.org/abs/2512.15420