ComfyUI ExLlama Nodes

A simple text generator for ComfyUI utilizing ExLlamaV2.

Installation

Clone the repository to custom_nodes and install dependencies:

git clone https://github.com/Zuellni/ComfyUI-ExLlama-Nodes
pip install -r requirements.txt

Optionally, you can install flash-attention by uncommenting the relevant lines in the requirements file. If you see any ExLlama-related errors while loading the nodes, install it manually following the instructions here.

Usage

ExLlamaV2 supports EXL2 and 4-bit GPTQ models. You can find a lot of them on Hugging Face. 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. You can also add your own llm path to extra_model_paths.yaml and place the models there instead.

For instance, if you want to download the 4-bit 32g branch of Zephyr 7B Beta, 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

Nodes

Name	Description
Loader	Used to load EXL2/GPTQ Llama models.
Generator	Generates a string based on the given input.
Preview	Displays generated outputs in the UI.
Replace	Replaces variables enclosed in brackets, such as [a], with their values.

Workflow

The image below can be opened in ComfyUI.