LLaVA README

The project's README from github.com/haotian-liu/LLaVA. As one markdown file: README.md.

🌋 LLaVA: Large Language and Vision Assistant

Visual instruction tuning towards large language and vision models with GPT-4 level capabilities.

[📢 LLaVA-NeXT Blog] [Project Page] [Demo] [Data] [Model Zoo]

🤝Community Contributions: [llama.cpp] [Colab] [🤗Space] [Replicate] [AutoGen] [BakLLaVA]

Improved Baselines with Visual Instruction Tuning [Paper] [HF]
Haotian Liu, Chunyuan Li, Yuheng Li, Yong Jae Lee

Visual Instruction Tuning (NeurIPS 2023, Oral) [Paper] [HF]
Haotian Liu*, Chunyuan Li*, Qingyang Wu, Yong Jae Lee (*Equal Contribution)

Release

More

  • [7/19] 🔥 We release a major upgrade, including support for LLaMA-2, LoRA training, 4-/8-bit inference, higher resolution (336x336), and a lot more. We release LLaVA Bench for benchmarking open-ended visual chat with results from Bard and Bing-Chat. We also support and verify training with RTX 3090 and RTX A6000. Check out LLaVA-from-LLaMA-2, and our model zoo!
  • [6/26] CVPR 2023 Tutorial on Large Multimodal Models: Towards Building and Surpassing Multimodal GPT-4! Please check out [Slides] [Notes] [YouTube] [Bilibli].
  • [6/11] We released the preview for the most requested feature: DeepSpeed and LoRA support! Please see documentations here.
  • [6/1] We released LLaVA-Med: Large Language and Vision Assistant for Biomedicine, a step towards building biomedical domain large language and vision models with GPT-4 level capabilities. Checkout the paper and page.
  • [5/6] We are releasing LLaVA-Lighting-MPT-7B-preview, based on MPT-7B-Chat! See here for more details.
  • [5/2] 🔥 We are releasing LLaVA-Lighting! Train a lite, multimodal GPT-4 with just $40 in 3 hours! See here for more details.
  • [4/27] Thanks to the community effort, LLaVA-13B with 4-bit quantization allows you to run on a GPU with as few as 12GB VRAM! Try it out here.
  • [4/17] 🔥 We released LLaVA: Large Language and Vision Assistant. We propose visual instruction tuning, towards building large language and vision models with GPT-4 level capabilities. Checkout the paper and demo.

Code License Usage and License Notices: This project utilizes certain datasets and checkpoints that are subject to their respective original licenses. Users must comply with all terms and conditions of these original licenses, including but not limited to the OpenAI Terms of Use for the dataset and the specific licenses for base language models for checkpoints trained using the dataset (e.g. Llama community license for LLaMA-2 and Vicuna-v1.5). This project does not impose any additional constraints beyond those stipulated in the original licenses. Furthermore, users are reminded to ensure that their use of the dataset and checkpoints is in compliance with all applicable laws and regulations.

Contents

Install

If you are not using Linux, do NOT proceed, see instructions for macOS and Windows.

  1. Clone this repository and navigate to LLaVA folder
git clone https://github.com/haotian-liu/LLaVA.git
cd LLaVA
  1. Install Package
conda create -n llava python=3.10 -y
conda activate llava
pip install --upgrade pip  # enable PEP 660 support
pip install -e .
  1. Install additional packages for training cases
pip install -e ".[train]"
pip install flash-attn --no-build-isolation

Upgrade to latest code base

git pull
pip install -e .

# if you see some import errors when you upgrade,
# please try running the command below (without #)
# pip install flash-attn --no-build-isolation --no-cache-dir

Quick Start With HuggingFace

Example Code
from llava.model.builder import load_pretrained_model
from llava.mm_utils import get_model_name_from_path
from llava.eval.run_llava import eval_model

model_path = "liuhaotian/llava-v1.5-7b"

tokenizer, model, image_processor, context_len = load_pretrained_model(
    model_path=model_path,
    model_base=None,
    model_name=get_model_name_from_path(model_path)
)

Check out the details wth the load_pretrained_model function in llava/model/builder.py.

You can also use the eval_model function in llava/eval/run_llava.py to get the output easily. By doing so, you can use this code on Colab directly after downloading this repository.

model_path = "liuhaotian/llava-v1.5-7b"
prompt = "What are the things I should be cautious about when I visit here?"
image_file = "https://llava-vl.github.io/static/images/view.jpg"

args = type('Args', (), {
    "model_path": model_path,
    "model_base": None,
    "model_name": get_model_name_from_path(model_path),
    "query": prompt,
    "conv_mode": None,
    "image_file": image_file,
    "sep": ",",
    "temperature": 0,
    "top_p": None,
    "num_beams": 1,
    "max_new_tokens": 512
})()

eval_model(args)

LLaVA Weights

Please check out our Model Zoo for all public LLaVA checkpoints, and the instructions of how to use the weights.

Demo

Gradio Web UI

To launch a Gradio demo locally, please run the following commands one by one. If you plan to launch multiple model workers to compare between different checkpoints, you only need to launch the controller and the web server ONCE.

flowchart BT
    %% Declare Nodes
    gws("Gradio (UI Server)")
    c("Controller (API Server):<br/>PORT: 10000")
    mw7b("Model Worker:<br/>llava-v1.5-7b<br/>PORT: 40000")
    mw13b("Model Worker:<br/>llava-v1.5-13b<br/>PORT: 40001")
    sglw13b("SGLang Backend:<br/>llava-v1.6-34b<br/>http://localhost:30000")
    lsglw13b("SGLang Worker:<br/>llava-v1.6-34b<br/>PORT: 40002")

    %% Declare Styles
    classDef data fill:#3af,stroke:#48a,stroke-width:2px,color:#444
    classDef success fill:#8f8,stroke:#0a0,stroke-width:2px,color:#444
    classDef failure fill:#f88,stroke:#f00,stroke-width:2px,color:#444

    %% Assign Styles
    class id,od data;
    class cimg,cs_s,scsim_s success;
    class ncimg,cs_f,scsim_f failure;

    subgraph Demo Connections
        direction BT
        c<-->gws
        
        mw7b<-->c
        mw13b<-->c
        lsglw13b<-->c
        sglw13b<-->lsglw13b
    end

Launch a controller

python -m llava.serve.controller --host 0.0.0.0 --port 10000

Launch a gradio web server.

python -m llava.serve.gradio_web_server --controller http://localhost:10000 --model-list-mode reload

You just launched the Gradio web interface. Now, you can open the web interface with the URL printed on the screen. You may notice that there is no model in the model list. Do not worry, as we have not launched any model worker yet. It will be automatically updated when you launch a model worker.

Launch a SGLang worker

This is the recommended way to serve LLaVA model with high throughput, and you need to install SGLang first. Note that currently 4-bit quantization is not supported yet on SGLang-LLaVA, and if you have limited GPU VRAM, please check out model worker with quantization.

pip install "sglang[all]"

You'll first launch a SGLang backend worker which will execute the models on GPUs. Remember the --port you've set and you'll use that later.

# Single GPU
CUDA_VISIBLE_DEVICES=0 python3 -m sglang.launch_server --model-path liuhaotian/llava-v1.5-7b --tokenizer-path llava-hf/llava-1.5-7b-hf --port 30000

# Multiple GPUs with tensor parallel
CUDA_VISIBLE_DEVICES=0,1 python3 -m sglang.launch_server --model-path liuhaotian/llava-v1.5-13b --tokenizer-path llava-hf/llava-1.5-13b-hf --port 30000 --tp 2

Tokenizers (temporary): llava-hf/llava-1.5-7b-hf, llava-hf/llava-1.5-13b-hf, liuhaotian/llava-v1.6-34b-tokenizer.

You'll then launch a LLaVA-SGLang worker that will communicate between LLaVA controller and SGLang backend to route the requests. Set --sgl-endpoint to http://127.0.0.1:port where port is the one you just set (default: 30000).

python -m llava.serve.sglang_worker --host 0.0.0.0 --controller http://localhost:10000 --port 40000 --worker http://localhost:40000 --sgl-endpoint http://127.0.0.1:30000

Launch a model worker

This is the actual worker that performs the inference on the GPU. Each worker is responsible for a single model specified in --model-path.

python -m llava.serve.model_worker --host 0.0.0.0 --controller http://localhost:10000 --port 40000 --worker http://localhost:40000 --model-path liuhaotian/llava-v1.5-13b

Wait until the process finishes loading the model and you see "Uvicorn running on ...". Now, refresh your Gradio web UI, and you will see the model you just launched in the model list.

You can launch as many workers as you want, and compare between different model checkpoints in the same Gradio interface. Please keep the --controller the same, and modify the --port and --worker to a different port number for each worker.

python -m llava.serve.model_worker --host 0.0.0.0 --controller http://localhost:10000 --port <different from 40000, say 40001> --worker http://localhost:<change accordingly, i.e. 40001> --model-path <ckpt2>

If you are using an Apple device with an M1 or M2 chip, you can specify the mps device by using the --device flag: --device mps.

Launch a model worker (Multiple GPUs, when GPU VRAM <= 24GB)

If the VRAM of your GPU is less than 24GB (e.g., RTX 3090, RTX 4090, etc.), you may try running it with multiple GPUs. Our latest code base will automatically try to use multiple GPUs if you have more than one GPU. You can specify which GPUs to use with CUDA_VISIBLE_DEVICES. Below is an example of running with the first two GPUs.

CUDA_VISIBLE_DEVICES=0,1 python -m llava.serve.model_worker --host 0.0.0.0 --controller http://localhost:10000 --port 40000 --worker http://localhost:40000 --model-path liuhaotian/llava-v1.5-13b

Launch a model worker (4-bit, 8-bit inference, quantized)

You can launch the model worker with quantized bits (4-bit, 8-bit), which allows you to run the inference with reduced GPU memory footprint, potentially allowing you to run on a GPU with as few as 12GB VRAM. Note that inference with quantized bits may not be as accurate as the full-precision model. Simply append --load-4bit or --load-8bit to the model worker command that you are executing. Below is an example of running with 4-bit quantization.

python -m llava.serve.model_worker --host 0.0.0.0 --controller http://localhost:10000 --port 40000 --worker http://localhost:40000 --model-path liuhaotian/llava-v1.5-13b --load-4bit

Launch a model worker (LoRA weights, unmerged)

You can launch the model worker with LoRA weights, without merging them with the base checkpoint, to save disk space. There will be additional loading time, while the inference speed is the same as the merged checkpoints. Unmerged LoRA checkpoints do not have lora-merge in the model name, and are usually much smaller (less than 1GB) than the merged checkpoints (13G for 7B, and 25G for 13B).

To load unmerged LoRA weights, you simply need to pass an additional argument --model-base, which is the base LLM that is used to train the LoRA weights. You can check the base LLM of each LoRA weights in the model zoo.

python -m llava.serve.model_worker --host 0.0.0.0 --controller http://localhost:10000 --port 40000 --worker http://localhost:40000 --model-path liuhao

LLaVA (haotian-liu/LLaVA)

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这是干什么的?LLaVA 是一个开源的大型多模态聊天机器人:它是一个视觉语言模型,你可以给它看图片并和它对话,通过视觉指令微调构建,目标是达到 GPT-4V 级别的能力(NeurIPS 2023 Oral)。
那它是需要安装的应用,还是代码和模型权重?既不是托管应用,也不是普通的库:它是一个研究代码库,包含用于训练和评测的 Python 脚本,以及 Model Zoo 里提供的预训练模型权重,通常以本地 Gradio 网页界面的方式运行。
我怎么把它跑起来?克隆仓库、安装 Python 包、从 Model Zoo 下载模型权重,然后启动三个进程:一个控制器,一个在你的 GPU 上运行模型的模型工作进程,以及一个用浏览器打开的 Gradio 网页服务器。
我的电脑必须是 Linux 系统吗?就安装而言,基本上是的——README 会告诉非 Linux 用户停下,转而参考单独的 macOS 和 Windows 安装说明。在 Apple M1/M2 芯片上,模型工作进程可以通过 --device mps 使用 mps 设备。
只知道 Apache-2.0 许可证就够了吗?不完全够:代码是 Apache-2.0 许可,但数据集和模型权重仍沿用其原始许可证——训练数据受 OpenAI 的服务条款约束,LLaMA-2/Vicuna 权重则受 Llama 社区许可证约束。
我需要多大的 GPU?使用 4-bit 量化时,推理只需一块显存低至 12GB 的 GPU;显存不足 24GB 时,代码可以自动拆分到多块 GPU 上。训练已在 RTX 3090 和 RTX A6000 上验证过。
没有强劲的 NVIDIA GPU 也能运行 LLaVA 吗?可以,但有一些取舍:LLaVA 在 llama.cpp 中得到支持,提供 4-bit 和 5-bit 量化,适合纯 CPU 环境;仓库还添加了对 Intel dGPU 和 CPU 平台的支持。量化推理的准确度会比全精度略低一些。
它在视频上真的管用吗?效果出奇地好:LLaVA-NeXT (Video) 表明,只用图像训练的模型通过零样本模态迁移在视频任务上也很强,而且结合 AI 反馈在视频上做 DPO 训练能带来显著提升。
这个项目除了主模型之外还产出了什么?好几个研究衍生项目:面向生物医学的 LLaVA-Med、学习使用工具的 LLaVA-Plus 智能体、结合聊天、分割和生成的 LLaVA-Interactive、用于减少幻觉的 RLHF 变体,还有韩国的 Ko-LLaVA。
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