Author

Y. Lim

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Preprint Aug 2026

xPress: Parallel Refinement for Diffusion Drafters in Speculative Decoding

Block-diffusion drafters like dFlash generate an entire block of draft tokens in a single forward pass, drastically reducing the overhead of multiple-token drafting in speculative decoding. The crucial final step of the single-pass discrete denoising process involves using the logit distribution at each position to sam...

Zheng Wang, Davis Wertheimer, Y. Lim et al. · 2 citations