ConfigsMar 31, 2026·2 min read

ComfyUI — Node-Based AI Image Generation

The most powerful modular AI image generation GUI with a node/graph editor. Supports Stable Diffusion, Flux, SDXL, ControlNet, and 1000+ custom nodes. 107K+ stars.

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Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

git clone https://github.com/comfyanonymous/ComfyUI.git
cd ComfyUI
pip install -r requirements.txt
python main.py

Open http://127.0.0.1:8188 in your browser.

Intro

ComfyUI is the most powerful and modular AI image generation tool, built as a node-based graph editor. Design complex image generation workflows by connecting nodes — models, prompts, samplers, ControlNet, LoRA, upscalers, and more. Supports Stable Diffusion 1.5/2.1/XL/3, Flux, and hundreds of custom nodes from the community. 107,000+ GitHub stars, the most popular Stable Diffusion UI.

Best for: AI artists, designers, and developers building image generation pipelines Works with: Stable Diffusion, SDXL, Flux, ControlNet, LoRA, IP-Adapter

Key Features

Node-Based Workflow

Visual graph editor — drag, connect, and configure nodes to build any image pipeline. Save and share workflows as JSON files.

Model Support

  • Stable Diffusion 1.5, 2.1, XL, 3.0
  • Flux (Dev, Schnell)
  • ControlNet, IP-Adapter, T2I-Adapter
  • LoRA, LyCORIS, Hypernetworks
  • Upscale models (ESRGAN, SwinIR)

1000+ Custom Nodes

Community-built extensions: AnimateDiff (video), FaceRestore, Segment Anything, InstantID, and many more via ComfyUI Manager.

API & Automation

Full REST API for headless generation. Queue prompts, get results programmatically:

import requests
requests.post("http://127.0.0.1:8188/prompt", json={"prompt": workflow})

Performance

  • GPU-optimized with automatic memory management
  • Queue system for batch generation
  • Supports NVIDIA, AMD, Apple Silicon

FAQ

Q: What is ComfyUI? A: A node-based AI image generation GUI and backend with 107K+ GitHub stars. Build complex Stable Diffusion workflows visually by connecting nodes. The most popular open-source image generation tool.

Q: Is ComfyUI free? A: Yes, fully open-source under GPL-3.0. Requires a GPU (NVIDIA recommended) and locally-downloaded model weights.

🙏

Source & Thanks

Created by Comfy-Org. Licensed under GPL-3.0. Comfy-Org/ComfyUI — 107,000+ GitHub stars

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