WHAT IS COMFYUI?
Everything You Need to Know About ComfyUI, How It Works and Integrating AI Models Like Juggernaut and Stable Diffusion To Get Started With Creating Images And Videos Using ComfyUI.
May 31, 2025
Author : CompareAI.AI
ComfyUI is a powerful, node-based graphical interface designed for managing workflows in Stable Diffusion, one of the most popular AI tools for image generation. With ComfyUI, users can visually build complex pipelines by connecting modular blocks called nodes — all without writing a single line of code. This makes it ideal for beginners and pros alike who want full control over the Image Or Video Generative AI tool process. Its visual, drag-and-drop system provides a flexible and transparent way to harness the power of free AI models for creating stunning visuals.
Setting Up ComfyUI
Getting started with ComfyUI is now simpler than ever. Thanks to a dedicated installer, there’s no longer any need to manually extract archives or clone repositories. With just a few steps, you can start building advanced image generative and video generative workflows using powerful AI tools—all on your local system. Just make sure you have Git installed, as it's needed for installing or updating some custom nodes.
1. Install Git
Before installing ComfyUI, download Git from git-scm.com and run the installer. Default settings are fine unless you have a specific configuration in mind.
2. Download ComfyUI
Head over to the official ComfyUI GitHub page and download the Windows Installer (.exe) version. This installer is the easiest way to get up and running.
3. Install ComfyUI
Run the .exe file and follow the prompts to install ComfyUI to your preferred drive or folder. The process is straightforward and takes just a minute or two.
4. Launch ComfyUI
Once installed, run ComfyUI like any other desktop application. A command window will appear, and shortly after, the ComfyUI interface will automatically launch in your default web browser.
Now you're ready to start exploring free AI models, connecting nodes, and generating your first AI-powered visuals—whether that’s an image, a video, or both.
Integrating AI Models (e.g., Juggernaut, Stable Diffusion)
To unlock the full power of ComfyUI for both image generative and video generative AI tools, you’ll need to integrate the appropriate AI models. Whether you’re working with popular base models like Stable Diffusion or advanced fine-tuned variants like Juggernaut, ComfyUI makes it easy to get started.
Step 1: Download Free AI Models
Head over to CivitAI — a trusted repository for free AI models.
Use the search bar to find models like:
Juggernaut v1.5 / SDXL
Stable Diffusion v1.5, SDXL, or SD3
You can filter results by file type (.safetensors is recommended for safety and performance), model version, and popularity.
Step 2: Place Models in the Checkpoints Folder
Once downloaded, move the .safetensors model files into this folder:
This is the default directory where ComfyUI looks for AI models during workflow setup.
Step 3: Refresh Model List
Open ComfyUI in your browser, navigate to the node that handles model loading (typically the “Load Checkpoint” node), and click to refresh the list.
You should now see your newly added models available for selection.
Step 4: Select and Use
Choose the model that fits your workflow. Whether you're aiming for stylized portraits or cinematic video frames, selecting the right model is key to maximizing quality and consistency.
With your models in place, you're ready to create stunning visuals using ComfyUI — one of the most flexible AI tools for image and video generation on your own hardware.
Check out our comparisons on image and video generative AI tools like Leonardo AI, Ideogram etc. with results and analysis over each AI tool, Or just judge them yourself by comparing the results of each ai tool, go to home now!.