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A simple text generator for [ComfyUI](https://github.com/comfyanonymous/ComfyUI) utilizing [ExLlamaV2](https://github.com/turboderp/exllamav2).
## Installation
While in the root ComfyUI directory, clone the repository to `custom_nodes` and install dependencies:
Navigate to the root ComfyUI directory, clone the repository to `custom_nodes` and install dependencies:
```
git clone https://github.com/Zuellni/ComfyUI-ExLlama-Nodes custom_nodes/ComfyUI-ExLlama-Nodes
pip install -r custom_nodes/ComfyUI-ExLlama-Nodes/requirements.txt
```
Optionally, you can install [flash-attention](https://github.com/Dao-AILab/flash-attention) by uncommenting the relevant lines in the requirements file. It should lower VRAM usage but your mileage may vary.
> [!IMPORTANT]
> If you see any ExLlama-related errors while loading the nodes, try to install it manually following the [official instructions](https://github.com/turboderp/exllamav2#installation).
> The wheels included in the requirements file should match the latest portable ComfyUI build. If you see any ExLlama-related errors while loading the nodes, try to install it manually following the [official instructions](https://github.com/turboderp/exllamav2#installation).
## Usage
Only EXL2 and 4-bit GPTQ models are supported. You can find a lot of them on [Hugging Face](https://huggingface.co/TheBloke). Refer to the model card in each repository for details about quant differences and instruction formats.
To use a model with the nodes, you should clone its repository with git or manually download all the files and place them in `models/llm`. For example, if you'd like download the 4-bit 32g version of [Zephyr 7B Beta](https://huggingface.co/TheBloke/zephyr-7B-beta-GPTQ), use the following command:
To use a model with the nodes, you should clone its repository with git or manually download all the files and place them in `models/llm`. For example, if you'd like to download the 4-bit 32g version of [Zephyr 7B Beta](https://huggingface.co/TheBloke/zephyr-7B-beta-GPTQ), use the following command:
```
git clone https://huggingface.co/TheBloke/zephyr-7B-beta-GPTQ -b gptq-4bit-32g-actorder_True models/llm/zephyr-7b-gptq-32g
```