Author

Tianyi Li

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Preprint Aug 2026

DARTree: Speculative Diffusion Decoding with Autoregressive Draft Trees

DARTree is introduced, a training-free speculative decoding method that extends a pretrained AR correction head from chains to trees, and achieves the highest average acceptance length and speedup in all four model--temperature configurations.

Tianyi Li, Yaxin Luo, Xinyi Shang et al. · 0 citations