---
title: "Reuse AUTOMATIC1111 Stable Diffusion WebUI Models in ComfyUI"
date: 2025-01-15T15:28:35.000Z
author: Z.SHINCHVEN
tags: [ComfyUI, AUTOMATIC1111, Stable Diffusion Web UI]
canonical: https://atlassc.net/2025/01/16/reuse-a1111-sd-webui-models-in-comfyui
---
## Introduction

ComfyUI is a powerful and modular GUI for working with diffusion models, offering a node-based interface for creating complex workflows. If you've been using AUTOMATIC1111's Stable Diffusion web UI (A1111) and have a collection of models, you might be wondering if you can use them in ComfyUI without downloading them again. The good news is, yes you can!

ComfyUI provides a straightforward way to share models with other diffusion UIs like A1111 through its configuration file.

## The `extra_model_paths.yaml` File

ComfyUI uses a configuration file named `extra_model_paths.yaml` to define search paths for various model types. This file allows you to specify directories where ComfyUI should look for models, including those already used by A1111.

## Steps to Share Models

1. **Locate the File:**
    *   In the standalone Windows build of ComfyUI, you'll find `extra_model_paths.yaml.example` in the main `ComfyUI` directory.
    *   For other installations, the file is also located in the root of the ComfyUI repository.

2. **Rename the File:** Rename `extra_model_paths.yaml.example` to `extra_model_paths.yaml`.

3. **Edit the File:** Open `extra_model_paths.yaml` with a text editor.

4. **Configure Paths:** The file contains example configurations for different model types (checkpoints, VAEs, LoRAs, etc.). You need to modify these paths to point to the corresponding directories within your A1111 installation.

    For example, if your A1111 checkpoints are located in `stable-diffusion-webui/models/Stable-diffusion`, your configuration might look like this:

    ```yaml
    a1111:
      base_path: /path/to/your/stable-diffusion-webui # Replace with the actual path

      checkpoints: models/Stable-diffusion
      configs: models/Stable-diffusion
      vae: models/VAE
      loras: |
        models/Lora
        models/LyCORIS
      upscale_models: |
         models/ESRGAN
         models/SwinIR
      embeddings: embeddings
      hypernetworks: models/hypernetworks
      controlnet: models/ControlNet
    ```

    **Important:**
    *   Replace `/path/to/your/stable-diffusion-webui` with the actual path to your A1111 installation directory.
    *   Adjust the sub-paths (e.g., `models/Stable-diffusion`, `models/VAE`) according to your A1111 directory structure.
    *   The `|` symbol is used for multi-line strings in YAML, allowing you to specify multiple directories for a single model type.

5. **Save and Restart:** Save the changes to `extra_model_paths.yaml` and restart ComfyUI.

After restarting, ComfyUI will now be able to load models from the directories you specified, including those from your A1111 installation. This means you can seamlessly use your existing model collection in ComfyUI without any redundant downloads or storage usage.
Enjoy experimenting with your A1111 models in the flexible environment of ComfyUI!