---
datasets:
- d3LLM/trajectory_data_dream_32
pipeline_tag: text-generation
library_name: transformers
license: apache-2.0
base_model: Dream-org/Dream-v0-Instruct-7B
tags:
- diffusion
- text-generation
- fast-inference
- d3llm
---

# d3LLM: Ultra-Fast Diffusion LLM using Pseudo-Trajectory Distillation 🚀

This repository contains the **d3LLM-Dream** model, an ultra-fast diffusion language model introduced in the paper [d3LLM: Ultra-Fast Diffusion LLM using Pseudo-Trajectory Distillation](https://huggingface.co/papers/2601.07568).

- 📄 **Paper**: [arXiv:2601.07568](https://huggingface.co/papers/2601.07568)
- 👉 **Code repo**: [https://github.com/hao-ai-lab/d3LLM](https://github.com/hao-ai-lab/d3LLM)
- 🌐 **Blog**: [https://hao-ai-lab.github.io/blogs/text-diffusion/](https://hao-ai-lab.github.io/blogs/text-diffusion/)
- 🕹️ **Demo**: [https://d3llm-team.github.io/](https://d3llm-team.github.io/)

## Model Description

**d3LLM-Dream** is an ultra-fast diffusion language model that achieves high generation speed while maintaining competitive performance. It strikes a balance between accuracy and parallelism by using **pseudo-trajectory distillation** during training and **entropy-based multi-block decoding** during inference.

## Key Features

- 🚀 **High throughput**: 4.5× faster than autoregressive models (Qwen-2.5-7B) on H100 GPU, 2.5× faster on A100 GPU. Achieves **235.34 tokens/s** on H100 on GSM8K-CoT.
- 📊 **High AUP**: Optimized for Accuracy Under Parallelism across benchmarks.
- 🔧 **Specialized**: Optimized for coding and math reasoning tasks.

## Usage

You can load and use the model with the 🤗 Transformers library. Note that `trust_remote_code=True` is required as the model uses a custom architecture.

```python
from transformers import AutoModel, AutoTokenizer

model_id = "d3LLM/d3LLM_Dream"

# Load model and tokenizer
tokenizer = AutoTokenizer.from_pretrained(model_id, trust_remote_code=True)
model = AutoModel.from_pretrained(model_id, trust_remote_code=True)

# For detailed inference scripts (multi-block decoding), 
# please refer to the official GitHub repository.
```

For more comprehensive examples and evaluation scripts, visit the [official repository](https://github.com/hao-ai-lab/d3LLM).

## Citation

```bibtex
@article{arxiv'26:d3llm,
  title   = {d3LLM: Ultra-Fast Diffusion LLM using Pseudo-Trajectory Distillation},
  author  = {Yu-Yang Qian and Junda Su and Lanxiang Hu and Peiyuan Zhang and Zhijie Deng and Peng Zhao and Hao Zhang},
  journal = {ArXiv preprint},
  volume  = {arXiv:2601.07568},
  year    = {2026}
}
```