---
title: Llmlingua 2
emoji: 💻
colorFrom: red
colorTo: green
sdk: gradio
sdk_version: 4.21.0
app_file: app.py
pinned: false
license: cc-by-nc-sa-4.0
---
 
Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
 
LLMLingua-2 is one of the branch from [LLMLingua Series](https://llmlingua.com/). Please check the links below for more information.
<div style="display: flex; align-items: center;">
    <div style="width: 100px; margin-right: 10px; height:auto;" align="left">
        <img src="images/LLMLingua_logo.png" alt="LLMLingua" width="100" align="left">
    </div>
    <div style="flex-grow: 1;" align="center">
        <h2 align="center">LLMLingua Series | Effectively Deliver Information to LLMs via Prompt Compression</h2>
    </div>
</div>
 
<p align="center">
    | <a href="https://llmlingua.com/"><b>Project Page</b></a> |
    <a href="https://aclanthology.org/2023.emnlp-main.825/"><b>LLMLingua</b></a> |
    <a href="https://arxiv.org/abs/2310.06839"><b>LongLLMLingua</b></a> |
    <a href="https://arxiv.org/abs/2403."><b>LLMLingua-2</b></a> |
    <a href="https://huggingface.co/spaces/microsoft/LLMLingua"><b>LLMLingua Demo</b></a> |
    <a href="https://huggingface.co/spaces/microsoft/LLMLingua-2"><b>LLMLingua-2 Demo</b></a> |
</p>

 
## Brief Introduction
 
**LLMLingua** utilizes a compact, well-trained language model (e.g., GPT2-small, LLaMA-7B) to identify and remove non-essential tokens in prompts. This approach enables efficient inference with large language models (LLMs), achieving up to 20x compression with minimal performance loss.
 
- [LLMLingua: Compressing Prompts for Accelerated Inference of Large Language Models](https://aclanthology.org/2023.emnlp-main.825/) (EMNLP 2023)<br>
  _Huiqiang Jiang, Qianhui Wu, Chin-Yew Lin, Yuqing Yang and Lili Qiu_
 
**LongLLMLingua** mitigates the 'lost in the middle' issue in LLMs, enhancing long-context information processing. It reduces costs and boosts efficiency with prompt compression, improving RAG performance by up to 21.4% using only 1/4 of the tokens.
 
- [LongLLMLingua: Accelerating and Enhancing LLMs in Long Context Scenarios via Prompt Compression](https://arxiv.org/abs/2310.06839) (ICLR ME-FoMo 2024)<br>
  _Huiqiang Jiang, Qianhui Wu, Xufang Luo, Dongsheng Li, Chin-Yew Lin, Yuqing Yang and Lili Qiu_
 
**LLMLingua-2**, a small-size yet powerful prompt compression method trained via data distillation from GPT-4 for token classification with a BERT-level encoder, excels in task-agnostic compression. It surpasses LLMLingua in handling out-of-domain data, offering 3x-6x faster performance.
 
- [LLMLingua-2: Context-Aware Data Distillation for Efficient and Faithful Task-Agnostic Prompt Compression](https://arxiv.org/abs/2403.) (Under Review)<br>
  _Zhuoshi Pan, Qianhui Wu, Huiqiang Jiang, Menglin Xia, Xufang Luo, Jue Zhang, Qingwei Lin, Victor Ruhle, Yuqing Yang, Chin-Yew Lin, H. Vicky Zhao, Lili Qiu, Dongmei Zhang_