ComfyUI
by Comfy Org
ComfyUI is an open-source, node-based interface and inference engine for generative AI workflows. Users connect models and processing nodes to create, inspect, reuse, and automate image, video, and audio pipelines.
Why Abandoned
ComfyUI remains actively developed: its public GitHub repository receives releases and updates, while Comfy Org operates the official website and Comfy Cloud service.
💵 Pricing & access
- Pricing model
- Not documented
- Starting at
- Not documented
- Official site
- Visit ComfyUI →
🩺 Health Signals
- HTTP Status
- 200
- Response
- —
- SSL
- —
- Confidence
- 98%
- Domain expires
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- Last content change
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- Last tweet
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- API status
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📅 Timeline
ComfyUI public development begins
The earliest commit in the public ComfyUI GitHub repository dates to January 16, 2023, marking the project's documented public start.
ComfyUI joins Stability AI
Stability AI announced that ComfyUI creator comfyanonymous had joined the company while continuing to develop the open-source interface.
Comfy Org raises seed funding
Comfy Org announced a $12 million seed round led by Felicis, with participation from notable investors including Stability AI.
Comfy Cloud enters public beta
Comfy Org announced the public beta of Comfy Cloud, a hosted environment for running ComfyUI workflows without local setup.
🔄 Alternatives to ComfyUI
Adobe Firefly
🟢ActiveAdobe's generative AI tool for creating images, text effects, and design elements.
Midjourney
🟢ActiveAI image generation tool known for producing highly artistic and detailed images.
Runway ML
🟢ActiveAI creative suite for video editing, generation, and visual effects using generative AI.
Stable Diffusion
🟢ActiveOpen-source text-to-image AI model by Stability AI, allowing local and cloud-based image generation.
🪦 Other dead Design & Graphics tools
Clipdrop
🟡Acquired / MergedClipdrop is a suite of AI-assisted image editing and generation tools for removing backgrounds and objects, relighting scenes, upscaling images, replacing backgrounds, and creating images from text or sketches.
Magnific AI
🟡Acquired / MergedMagnific AI is a generative image upscaling and enhancement tool. It enlarges images while using text prompts and adjustable controls to reconstruct details, sharpen outputs, and apply creative transformations.
remove.bg
🟡Acquired / Mergedremove.bg is an online image-editing service that automatically detects foreground subjects and removes image backgrounds. It offers a web app, desktop integrations, plugins, and an API for automated workflows.
Galileo AI
🟡Acquired / MergedGalileo AI was a generative design tool that turned text prompts into editable user-interface designs. The service was acquired by Google in 2024, and its public website now redirects to Google Stitch.
❓ Frequently Asked Questions
What is ComfyUI used for?
ComfyUI is used to build and run node-based generative AI workflows for images, video, audio, and related media. Its graph interface makes each model, input, sampler, and processing step visible and reusable.
Is ComfyUI free and open source?
Yes. The core ComfyUI project is available on GitHub under the GNU General Public License v3.0. Optional hosted services such as Comfy Cloud may have separate pricing and terms.
Does ComfyUI work with Stable Diffusion?
Yes. ComfyUI is widely used with Stable Diffusion models and supports workflows involving checkpoints, VAEs, ControlNet, LoRA, upscalers, and other compatible components.
Can ComfyUI generate video and audio?
Yes. ComfyUI can orchestrate supported image, video, and audio models through nodes and custom extensions. Exact capabilities depend on the installed models, hardware, and workflow.
Do I need a powerful GPU to use ComfyUI?
Local performance depends on the model and workflow, and larger models generally require more GPU memory. ComfyUI also documents low-VRAM and CPU modes, while Comfy Cloud offers hosted compute.