Krea
Alternative option
Image
Intuitive AI for generating, editing, and enhancing images and videos in real-time.
Image GeneratorVideo Generator
ComfyUI
Build visible, adjustable generative AI workflows by connecting nodes on a canvas
ComfyUI is an open-source, node-based interface and inference engine for generative AI. It runs locally on Windows, macOS, and Linux, lets users connect nodes into visible workflows, and offers a cloud option with paid plans and an API for production use.
Updated
2026-10-21
Platforms
Windows / macOS / Linux / Web
Freemium
Freemium: ComfyUI is open source and free to run locally. Comfy Cloud offers 5 free runs on real GPUs plus free Comfy Agent credits for new users; paid plans include Standard at $16 per month billed yearly ($20 monthly), Creator at $28 ($35 monthly), Pro at $80 ($100 monthly), Team at $630 ($700 monthly), and custom Enterprise. Cloud usage is charged by active GPU time and credits; confirm current plans on the official pricing page.
* Pricing is for reference only; see the official site for current pricing.
ComfyUI Key Features
Node Workflows
Connect nodes on a canvas and adjust every model, parameter, and processing step in the graph.
Local Inference
Install ComfyUI on your own machine and keep models, workflows, and outputs on local hardware.
Cloud and API
Use hosted GPUs and credits in Comfy Cloud, or deploy a workflow as an API through the developer platform.
Comfy Agent
Describe the result you want and let Comfy Agent plan, build, and run the workflow on the canvas.
ComfyUI Best For
Visual AI workflow designers
Inspect every model, parameter, and processing step in a node graph instead of relying on a fixed one-click pipeline.
Local model users with their own GPUs
Run ComfyUI on Windows, macOS, or Linux and keep models and data on their own hardware.
Teams moving workflows into production
Deploy a ComfyUI workflow as an API or use Comfy Cloud to scale it on hosted GPUs.
Pros
- Open source and free to run locally
- Every model, parameter, and processing step is visible and adjustable
- Large node and workflow ecosystem with community templates
- Cloud option and API for production deployment
Considerations
- Local use assumes your own hardware and model setup
- Cloud runs are billed by active GPU time and credits
- Node graphs have a steeper learning curve than one-click generators
ComfyUI Quick Start and Practical Tips
Quick start
- 1
Start with a workflow that already matches your task instead of an empty canvas, then delete nodes you do not need: every remaining node stays an explicit parameter you can inspect.
- 2
Run one image with a fixed seed before touching any other setting, so later changes can be attributed to a single variable.
- 3
When the workflow behaves as intended, use Comfy Agent to describe the goal and compare its graph with yours; it is faster for scaffolding than for fine control.
Pro tip
The usual mistake is rebuilding a graph every session and losing the good one. Save finished workflows as JSON and keep a fixed seed plus one quality preset as your baseline, then branch from it with duplicate-and-tweak instead of editing in place. On a local GPU, watch VRAM before node count: out-of-memory errors usually come from resolution and batch size, not from a missing node.
ComfyUI Alternatives
If this tool is not the right fit, explore these alternatives