# ComfyUI

> GPL-3.0 node-graph engine and API for local image, video and audio models

**Category:** AI Agents  
**Pricing:** open-source  
**URL:** https://www.comfy.org  
**GitHub:** https://github.com/Comfy-Org/ComfyUI  
**Added:** 2026-10-19

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## The Hook

ComfyUI runs open diffusion and media models on your own GPU through a visual node graph: you wire loaders, samplers, LoRAs and post-processing into a workflow, then run it from the UI or call it from your app over its local API.

## What's Good

GPL-3.0 (Comfy-Org/ComfyUI), release v0.42.1 (2026-10-19). Native support covers image models such as SDXL, SD3.5, Flux.1/Flux.2 and Qwen Image, image editing, video (Wan 2.x, LTX-Video, HunyuanVideo), audio and 3D. Queueing is asynchronous, only the changed part of a graph re-runs, and VRAM/RAM management with model offloading and quantized models lets big models run on modest cards. Reusable subgraphs, templates and App Mode turn a complex graph into a simple form, and the API slots a workflow into a production pipeline. Desktop app for Windows and macOS, manual install everywhere. ★~139k.

## The Catch

It is an engine you operate, not a one-click generator: node graphs have a learning curve, and the large custom-node ecosystem is third-party Python you are running with full access to your machine, so vet what you install. Real speed needs a decent GPU. Comfy Cloud and the partner nodes for closed models are paid; the local engine is free. GPL-3.0 matters if you plan to redistribute a modified build.

## Verdict

The default local engine for generative media pipelines — keep custom nodes to ones you trust.