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DTCA: Denoising Token Credit Assignment for Reinforcement Learning in Diffusion Language Models

Hongze Chen, Miao Pan, Lizhou Liang, Qinfeng Li, Xinyin Ma, Yongliang Shen, Weishi Wang, Daniel Dahlmeier, Xuhong Zhang, Wenqi Zhang

Estimates a token’s contribution by how much revealing it improves predictions at other masked positions. Uses part-of-speech groups to select denoising states and assign reinforcement-learning credit, improving a diffusion language model on math problems.

First public: · Added to this list: November 2, 2026

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ArXiv preprint

arXiv:2610.35201 · Initial submission: 2026-10-26

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Alternative generation methods — Change how intermediate steps are generated, revised, or searched—for example, by refining several steps in parallel. Some produce written chains of thought.