ComfyUI is a web-based Stable Diffusion interface optimized for workflow customization.

Stable Diffusion is a cutting-edge deep learning model capable of generating realistic images and art from text descriptions.

What is ComfyUI?

ComfyUI is a node-based GUI for Stable Diffusion. You can construct an image generation workflow by chaining different blocks (called nodes) together.

Some commonly used blocks are Loading a Checkpoint Model, entering a prompt, specifying a sampler, etc. ComfyUI breaks down a workflow into rearrangeable elements so you can easily make your own.

This ui will let you design and execute advanced stable diffusion pipelines using a graph/nodes/flowchart based interface. For some workflow examples and see what ComfyUI can do you can check out:

ComfyUI Examples

Installing ComfyUI

Features

• Nodes/graph/flowchart interface to experiment and create complex Stable Diffusion workflows without needing to code anything.
• Fully supports SD1.x, SD2.x, SDXL, Stable Video Diffusion and Stable Cascade
• Asynchronous Queue system
• Many optimizations: Only re-executes the parts of the workflow that changes between executions.
• Command line option: --lowvram to make it work on GPUs with less than 3GB vram (enabled automatically on GPUs with low vram)
• Works even if you don’t have a GPU with: --cpu (slow)
• Can load ckpt, safetensors and diffusers models/checkpoints. Standalone VAEs and CLIP models.
• Embeddings/Textual inversion
• Loras (regular, locon and loha)
• Hypernetworks
• Loading full workflows (with seeds) from generated PNG files.
• Saving/Loading workflows as Json files.
• Nodes interface can be used to create complex workflows like one for Hires fix or much more advanced ones.
• Area Composition
• Inpainting with both regular and inpainting models.
• ControlNet and T2I-Adapter
• Upscale Models (ESRGAN, ESRGAN variants, SwinIR, Swin2SR, etc…)
• unCLIP Models
• GLIGEN
• Model Merging
• LCM models and Loras
• SDXL Turbo
• Latent previews with TAESD
• Starts up very fast.
• Works fully offline: will never download anything.
• Config file to set the search paths for models.

Workflow examples can be found on the Examples page

Find out more here.