The Diffusion Duality
- URL: http://arxiv.org/abs/2506.10892v1
- Date: Thu, 12 Jun 2025 16:55:35 GMT
- Title: The Diffusion Duality
- Authors: Subham Sekhar Sahoo, Justin Deschenaux, Aaron Gokaslan, Guanghan Wang, Justin Chiu, Volodymyr Kuleshov,
- Abstract summary: Uniform-state diffusion processes naturally emerge from an underlying Gaussian diffusion.<n>Models trained with curriculum learning surpass autoregressive models in zero-shot perplexity on 3 of 7 benchmarks.<n>We present Discrete Consistency Distillation, which adapts consistency distillation from the continuous to the discrete setting.
- Score: 11.823724329261053
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Uniform-state discrete diffusion models hold the promise of fast text generation due to their inherent ability to self-correct. However, they are typically outperformed by autoregressive models and masked diffusion models. In this work, we narrow this performance gap by leveraging a key insight: Uniform-state diffusion processes naturally emerge from an underlying Gaussian diffusion. Our method, Duo, transfers powerful techniques from Gaussian diffusion to improve both training and sampling. First, we introduce a curriculum learning strategy guided by the Gaussian process, doubling training speed by reducing variance. Models trained with curriculum learning surpass autoregressive models in zero-shot perplexity on 3 of 7 benchmarks. Second, we present Discrete Consistency Distillation, which adapts consistency distillation from the continuous to the discrete setting. This algorithm unlocks few-step generation in diffusion language models by accelerating sampling by two orders of magnitude. We provide the code and model checkpoints on the project page: http://s-sahoo.github.io/duo
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