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ComfyUI
Node-based visual workflow tool for Stable Diffusion and FLUX
155 reviews
Free tierHas API
The ultimate tool for AI image generation power users. Node-based workflows enable things impossible in other tools. Steep learning curve but unmatched flexibility and control.
What's great
- Unlimited flexibility
- Free and open-source
- Massive custom node ecosystem
Watch out for
- Very steep learning curve
- Requires GPU or cloud
- UI is not beginner-friendly
Quick Facts
Founded2023
PricingFrom Free
Free tierYes
PlatformsWindows, Mac, Linux
APIAvailable
CategoryAI Image & Design
Q: What is ComfyUI?
ComfyUI is a powerful node-based interface for building custom AI image generation workflows. Chain models, LoRAs, upscalers, and custom nodes for maximum control over the generation process.
Q: How much does ComfyUI cost?
ComfyUI starts at Free. A free tier is available with Free (open source).
Q: Who is ComfyUI best for?
ComfyUI is best for power users and developers wanting maximum generation control.
Q: Is ComfyUI free?
Yes, ComfyUI is completely free.
Best for
Power users and developers wanting maximum generation control
Not ideal for
Beginners wanting simple text-to-image (use Midjourney)
Free
Free (open source)
Starter
Free
Pro
Free
Enterprise
N/A
1
2
3
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AICores Editorial Review
Reviewed by AICores Editorial Team
Last updated: May 2026
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