dLLM: Simple Diffusion Language Modeling

Fuente: arXiv
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Hauptverfasser: Zhou, Zhanhui, Chen, Lingjie, Tong, Hanghang, Song, Dawn
Format: Preprint
Veröffentlicht: 2026
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author Zhou, Zhanhui
Chen, Lingjie
Tong, Hanghang
Song, Dawn
author_facet Zhou, Zhanhui
Chen, Lingjie
Tong, Hanghang
Song, Dawn
contents Although diffusion language models (DLMs) are evolving quickly, many recent models converge on a set of shared components. These components, however, are distributed across ad-hoc research codebases or lack transparent implementations, making them difficult to reproduce or extend. As the field accelerates, there is a clear need for a unified framework that standardizes these common components while remaining flexible enough to support new methods and architectures. To address this gap, we introduce dLLM, an open-source framework that unifies the core components of diffusion language modeling -- training, inference, and evaluation -- and makes them easy to customize for new designs. With dLLM, users can reproduce, finetune, deploy, and evaluate open-source large DLMs such as LLaDA and Dream through a standardized pipeline. The framework also provides minimal, reproducible recipes for building small DLMs from scratch with accessible compute, including converting any BERT-style encoder or autoregressive LM into a DLM. We also release the checkpoints of these small DLMs to make DLMs more accessible and accelerate future research.
format Preprint
id arxiv_https___arxiv_org_abs_2602_22661
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle dLLM: Simple Diffusion Language Modeling
Zhou, Zhanhui
Chen, Lingjie
Tong, Hanghang
Song, Dawn
Computation and Language
Artificial Intelligence
Machine Learning
Although diffusion language models (DLMs) are evolving quickly, many recent models converge on a set of shared components. These components, however, are distributed across ad-hoc research codebases or lack transparent implementations, making them difficult to reproduce or extend. As the field accelerates, there is a clear need for a unified framework that standardizes these common components while remaining flexible enough to support new methods and architectures. To address this gap, we introduce dLLM, an open-source framework that unifies the core components of diffusion language modeling -- training, inference, and evaluation -- and makes them easy to customize for new designs. With dLLM, users can reproduce, finetune, deploy, and evaluate open-source large DLMs such as LLaDA and Dream through a standardized pipeline. The framework also provides minimal, reproducible recipes for building small DLMs from scratch with accessible compute, including converting any BERT-style encoder or autoregressive LM into a DLM. We also release the checkpoints of these small DLMs to make DLMs more accessible and accelerate future research.
title dLLM: Simple Diffusion Language Modeling
topic Computation and Language
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2602.22661