arXiv AI By Arnold Caleb Asiimwe, William Yang, Sanghyuk Chun, Esin Tureci, Olga Russakovsky

Depth as Time in One-Step Generative Models

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The paper investigates how one-step generative models, which compress multi-step diffusion processes, handle denoising across a single forward pass. It introduces the concept of "depth as time," showing that intermediate layers of a model can be decoded to reveal a denoising trajectory similar to multi-step diffusion. The study finds that models trained with a time-indexed transport task, such as MeanFlow, exhibit this depthwise denoising and can be highly compressed, whereas models without such a task do not show the same behavior.

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