Comfy Org

Overview

Comfy Org is the company behind ComfyUI, the most widely used open source node based tool for building AI image and video generation workflows. ComfyUI started as a personal project by comfyanonymous in early 2023 and quickly became the de facto standard for anyone who wants more control over generative AI than simple text to image apps provide. The project has accumulated over 104,000 GitHub stars, making it one of the most popular AI projects in the world. Comfy Org, incorporated in San Francisco, raised $17 million in funding to support continued development and to build Comfy Cloud, a hosted service that lets users run ComfyUI workflows in the cloud without needing their own GPU hardware. ComfyUI supports every major open source model family: Stable Diffusion 1.5, SDXL, SD3, FLUX, Hunyuan, and many more. It also supports video generation, 3D generation, and audio generation through its extensible node system. The custom node ecosystem, with thousands of community contributed extensions available through the ComfyUI Manager, is one of the largest in generative AI. The company offers a desktop application for easy local installation, a cloud platform for GPU access on demand, and maintains the open source ComfyUI project under the GPL license.

What makes them different

Comfy Org took the approach of building a visual, node based interface for AI generation rather than a simple prompt box. This means users can see and control every step of the generation pipeline: from loading a model, to configuring the sampler, to running post processing like upscaling or face restoration. Each step is a node on a canvas, and you connect them by dragging wires between inputs and outputs. This visual approach makes ComfyUI fundamentally more powerful than prompt based tools for users who want fine grained control. You can build complex multi step workflows, chain models together, run A/B comparisons, and create reusable pipelines that would be impossible in a simple chat interface. The tradeoff is a steeper learning curve: ComfyUI requires understanding concepts like samplers, schedulers, and model architectures. The open source model is a key differentiator. Unlike Midjourney, DALL-E, or other closed platforms, ComfyUI runs on your own hardware with no per image costs. Your images never leave your computer unless you choose to use Comfy Cloud. This makes it the tool of choice for privacy conscious users, studios handling sensitive client work, and anyone who wants full ownership of their creative pipeline. The custom node ecosystem is unmatched. Thousands of community built extensions add capabilities ranging from ControlNet pose control to AnimateDiff video generation to IP Adapter style transfer. No other generative AI tool has this level of extensibility.

Their tools

ComfyUI

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A free, open source visual tool for building AI image and video generation pipelines with a drag and drop node editor.

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