How Efficient Are Diffusion Language Models? A Critical Examination of Efficiency Evaluation Practices

arXiv — cs.CLFriday, October 31, 2025 at 4:00:00 AM
A recent study critically examines the efficiency of diffusion language models (DLMs), which are seen as a potential alternative to traditional autoregressive models. While DLMs promise faster decoding processes, they often fall short in speed compared to their autoregressive counterparts, which limits their practical applications. This research highlights significant flaws in previous evaluation methods, aiming to improve the understanding and performance of DLMs in real-world scenarios.
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