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Stable Diffusion 3 Turbo (arxiv.org)
1 point by mpaepper on Mar 19, 2024 | hide | past | pdf | discuss on HN

In plain words: Instead of checking generated images pixel by pixel with a fixed critic, this training trick has a slow image generator teach a fast one using its own internal features. The resulting model matches the best text-to-image systems while drawing each picture in four steps.

Abstract · Fast High-Resolution Image Synthesis with Latent Adversarial Diffusion Distillation

Diffusion models are the main driver of progress in image and video synthesis, but suffer from slow inference speed. Distillation methods, like the recently introduced adversarial diffusion distillation (ADD) aim to shift the model from many-shot to single-step inference, albeit at the cost of expensive and difficult optimization due to its reliance on a fixed pretrained DINOv2 discriminator. We introduce Latent Adversarial Diffusion Distillation (LADD), a novel distillation approach overcoming the limitations of ADD. In contrast to pixel-based ADD, LADD utilizes generative features from pretrained latent diffusion models. This approach simplifies training and enhances performance, enabling high-resolution multi-aspect ratio image synthesis. We apply LADD to Stable Diffusion 3 (8B) to obtain SD3-Turbo, a fast model that matches the performance of state-of-the-art text-to-image generators using only four unguided sampling steps. Moreover, we systematically investigate its scaling behavior and demonstrate LADD's effectiveness in various applications such as image editing and inpainting.

Axel Sauer, Frederic Boesel, Tim Dockhorn, Andreas Blattmann, Patrick Esser, Robin Rombach
arXiv:2403.12015 · cs.CV · submitted Mar 18, 2024
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