kitio.aiComfyUI vs Stable Diffusion WebUI Forge
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Stable Diffusion WebUI Forge is completely free, while ComfyUI is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Node graph editor
- Custom nodes ecosystem
- Shareable workflows
- Video and 3D support
- Comfy Cloud
- Lower VRAM use
- FLUX support
- Built-in ControlNet
- A1111 extension support
- One-click Windows package
| Feature | ComfyUI | Stable Diffusion WebUI Forge |
|---|---|---|
| Best for | Node-based open-source interface for building image AI workflows | Faster fork of the AUTOMATIC1111 interface with newer model support |
| Category | Image | Image |
| Pricing model | Freemium | Free |
| Starting price | $20/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Comfy Org | lllyasviel |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Stable Diffusion WebUI Forge is completely free, while ComfyUI is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
5 plans
Free
Free
- Open-source local app
- 5 free cloud runs for new users
Standard
$20/mo
- 30-minute max workflow runtime
- 4 concurrent agent sessions
- Add credits anytime
Creator
$35/mo
- Import your own models
- 6 concurrent agent sessions
- 5 builds
Pro
$100/mo
- Workflow runtime up to 1 hour
- 8 concurrent agent sessions
- 10 builds
Team
$700/mo
- For teams sharing workflows
- Shared credit pool
- 16 concurrent agent requests
Plans
Everything
$0
100% free to use. No paid plans to pick between.
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
ComfyUI
- Maximum control over pipelines
- Supports new models quickly
- Free to run locally
- Steep learning curve
- Needs a capable GPU locally
- Custom nodes can break on updates
Stable Diffusion WebUI Forge
- Faster than the original UI
- Runs on smaller GPUs
- Familiar interface
- Some extensions incompatible
- Update cadence is irregular
- Still needs local setup
Which one should you choose?
Choose ComfyUI if you want:
- Maximum control over pipelines
- Supports new models quickly
- Free to run locally
Watch out: steep learning curve.
Choose Stable Diffusion WebUI Forge if you want:
- Faster than the original UI
- Runs on smaller GPUs
- Familiar interface
Watch out: some extensions incompatible.
ComfyUI vs Stable Diffusion WebUI Forge FAQ
What is the difference between ComfyUI and Stable Diffusion WebUI Forge?
ComfyUI: Node-based open-source interface for building image AI workflows. Stable Diffusion WebUI Forge: Faster fork of the AUTOMATIC1111 interface with newer model support. Both are image tools.
Is ComfyUI or Stable Diffusion WebUI Forge cheaper?
Stable Diffusion WebUI Forge is completely free, while ComfyUI is freemium.
Do ComfyUI and Stable Diffusion WebUI Forge have free plans?
ComfyUI: Yes. Stable Diffusion WebUI Forge: Yes, fully free.
Who makes ComfyUI?
ComfyUI is made by Comfy Org, based in United States.
Who makes Stable Diffusion WebUI Forge?
Stable Diffusion WebUI Forge is made by lllyasviel.
Which should I choose, ComfyUI or Stable Diffusion WebUI Forge?
Choose ComfyUI if you value maximum control over pipelines and supports new models quickly. Choose Stable Diffusion WebUI Forge if you value faster than the original ui and runs on smaller gpus.