Adversarial Flow Models

• URL: http://arxiv.org/abs/2511.22475v1
• Date: Thu, 27 Nov 2025 14:04:08 GMT
• Title: Adversarial Flow Models
• Authors: Shanchuan Lin, Ceyuan Yang, Zhijie Lin, Hao Chen, Haoqi Fan,
• Abstract summary: We present adversarial flow models, a class of generative models that unifies adversarial models and flow models.<n>Our method supports native one-step or multi-step generation and is trained using the adversarial objective.<n>We show the possibility of end-to-end training of 56-layer and 112-layer models through depth repetition without any intermediate supervision.
• Score: 26.917627135225118
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present adversarial flow models, a class of generative models that unifies adversarial models and flow models. Our method supports native one-step or multi-step generation and is trained using the adversarial objective. Unlike traditional GANs, where the generator learns an arbitrary transport plan between the noise and the data distributions, our generator learns a deterministic noise-to-data mapping, which is the same optimal transport as in flow-matching models. This significantly stabilizes adversarial training. Also, unlike consistency-based methods, our model directly learns one-step or few-step generation without needing to learn the intermediate timesteps of the probability flow for propagation. This saves model capacity, reduces training iterations, and avoids error accumulation. Under the same 1NFE setting on ImageNet-256px, our B/2 model approaches the performance of consistency-based XL/2 models, while our XL/2 model creates a new best FID of 2.38. We additionally show the possibility of end-to-end training of 56-layer and 112-layer models through depth repetition without any intermediate supervision, and achieve FIDs of 2.08 and 1.94 using a single forward pass, surpassing their 2NFE and 4NFE counterparts.

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