How to build a consistency model: Learning flow maps via self-distillation
Overview
Paper Summary
This paper presents a unified algorithmic framework for training consistency models, which accelerate generative modeling by learning flow maps via self-distillation. The authors introduce three algorithmic families (Eulerian, Lagrangian, Progressive), demonstrating that the novel Lagrangian method offers significantly more stable training and higher performance compared to existing schemes, though some methods still struggle with fine details or higher step counts.
Explain Like I'm Five
Scientists taught AI models to draw pictures faster by teaching them a shortcut (a "flow map") that lets them jump directly to the final image instead of drawing many small steps. A new "Lagrangian" way works best, making the AI more stable.
Possible Conflicts of Interest
None identified
Identified Limitations
Rating Explanation
This paper provides a significant contribution by presenting a unified framework for consistency models and introducing novel Lagrangian methods for learning flow maps. The theoretical foundation is solid, and empirical results demonstrate improved stability and performance, particularly with the Lagrangian approach. While some limitations exist regarding performance on sharp features and specific step counts for different methods, the overall work advances the field of accelerated generative modeling.
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