StableDiffusion

Stable Diffusion is a tool for generating images based on text prompts, Dify has implemented the interface to access the Stable Diffusion WebUI API, so you can use it directly in Dify. followings are steps to integrate Stable Diffusion in Dify.

1. Make sure you have a machine with a GPU

Stable Diffusion requires a machine with a GPU to generate images. but it's not necessary, you can just use CPU to generate images, but it will be slow.

2. Launch Stable Diffusion WebUI

Launch the Stable Diffusion WebUI on your local machine or server.

2.1. Clone the Stable Diffusion WebUI repository

Clone the Stable Diffusion WebUI repository from the official repository

git clone https://github.com/AUTOMATIC1111/stable-diffusion-webui

2.2. Launch it locally

After cloning the repository, you should change directory to the cloned repository and run the following command to launch the Stable Diffusion WebUI.

Windows

cd stable-diffusion-webui
./webui.bat --api --listen

Linux

cd stable-diffusion-webui
./webui.sh --api --listen

2.3. Prepare Models

Now you can access the Stable Diffusion WebUI on your browser according to the address shown in the terminal, but the models are not available yet. You need to download the models HuggingFace or other sources and put them in the models directory of the Stable Diffusion WebUI.

For example, we use pastel-mix as the model, use git lfs to download the model and put it in the models directory in stable-diffusion-webui.

git clone https://huggingface.co/JamesFlare/pastel-mix

2.4 Get Model Name

Now you can see pastel-mix in the model list, but we still need to get the model name, visit http://your_id:port/sdapi/v1/sd-models, you will see the model name like below.

[
    {
        "title": "pastel-mix/pastelmix-better-vae-fp32.ckpt [943a810f75]",
        "model_name": "pastel-mix_pastelmix-better-vae-fp32",
        "hash": "943a810f75",
        "sha256": "943a810f7538b32f9d81dc5adea3792c07219964c8a8734565931fcec90d762d",
        "filename": "/home/takatost/stable-diffusion-webui/models/Stable-diffusion/pastel-mix/pastelmix-better-vae-fp32.ckpt",
        "config": null
    },
]

The model_name is what we need, in this case, it's pastel-mix_pastelmix-better-vae-fp32.

3. Integrate Stable Diffusion in Dify

Fill in the Authentication and Model Configuration in Tools > StableDiffusion > To Authorize with the information you get from the previous steps.

4. Finish

• Chatflow / Workflow Applications

Both Chatflow and Workflow applications support adding Stable Diffusion tool nodes. After adding, you need to fill in the variable referencing the user's input prompt or the content generated by the previous node in the "Input Variables → Prompt" section within the node. Finally, use a variable to reference the image output by Stable Diffusion in the "End" node.

• Agent Applications

Add the Stable Diffusion tool in the Agent application, then send image descriptions in the chat box to invoke the tool and generate AI images.