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Poster

SwiftBrush v2: Make Your One-step Diffusion Model Better Than Its Teacher

Trung Tuan Dao · Thuan Hoang Nguyen · Thanh Van Le · Duc H Vu · Khoi Nguyen · Cuong Pham · Anh Tran

Strong blind review: This paper was not made available on public preprint services during the review process Strong Double Blind
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Wed 2 Oct 7:30 a.m. PDT — 9:30 a.m. PDT

Abstract:

In this paper, we aim to enhance the performance of SwiftBrush, a prominent one-step text-to-image diffusion model, to be competitive with its multi-step Stable Diffusion counterpart. Initially, we explore the quality-diversity trade-off between SwiftBrush and SD Turbo: the former excels in image diversity, while the latter excels in image quality. This observation motivates our proposed modifications in the training methodology, including better weight initialization and efficient LoRA training. Moreover, our introduction of a novel clamped CLIP loss enhances image-text alignment and results in improved image quality. Remarkably, by combining the weights of models trained with efficient LoRA and full training, we achieve a new state-of-the-art one-step diffusion model, achieving an FID of 8.14 and surpassing all GAN-based and multi-step Stable Diffusion models.

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