kitio.aiStable Diffusion WebUI Forge vs StableDiffusionAI.ai
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 StableDiffusionAI.ai is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Lower VRAM use
- FLUX support
- Built-in ControlNet
- A1111 extension support
- One-click Windows package
- Text to image
- SDXL models
- Style selection
- Private images
- Commercial license
| Feature | Stable Diffusion WebUI Forge | StableDiffusionAI.ai |
|---|---|---|
| Best for | Faster fork of the AUTOMATIC1111 interface with newer model support | Online Stable Diffusion image generator with style options |
| Category | Image | Image |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | lllyasviel | Mira Muse LLC |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Stable Diffusion WebUI Forge is completely free, while StableDiffusionAI.ai is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
Plans
Everything
$0
100% free to use. No paid plans to pick between.
3 plans
Free
Free
- 10 generations per day (valid for 7 days)
- No watermark
- Commercial license
Pro
$7/mo billed yearly
- 1,000 fast generations per month
- Unlimited normal generations
- 2 running jobs at once
Max
$14/mo billed yearly
- 3,000 fast generations per month
- 5 running jobs at once
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
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
StableDiffusionAI.ai
- Free plan without watermark
- Commercial license included
- Images are private
- Free daily generations only valid for 7 days
- Queue notices during heavy traffic
- Third-party site, not Stability AI
Which one should you choose?
Choose Stable Diffusion WebUI Forge if you want:
- Faster than the original UI
- Runs on smaller GPUs
- Familiar interface
Watch out: some extensions incompatible.
Choose StableDiffusionAI.ai if you want:
- Free plan without watermark
- Commercial license included
- Images are private
Watch out: free daily generations only valid for 7 days.
Stable Diffusion WebUI Forge vs StableDiffusionAI.ai FAQ
What is the difference between Stable Diffusion WebUI Forge and StableDiffusionAI.ai?
Stable Diffusion WebUI Forge: Faster fork of the AUTOMATIC1111 interface with newer model support. StableDiffusionAI.ai: Online Stable Diffusion image generator with style options. Both are image tools.
Is Stable Diffusion WebUI Forge or StableDiffusionAI.ai cheaper?
Stable Diffusion WebUI Forge is completely free, while StableDiffusionAI.ai is freemium.
Do Stable Diffusion WebUI Forge and StableDiffusionAI.ai have free plans?
Stable Diffusion WebUI Forge: Yes, fully free. StableDiffusionAI.ai: Yes.
Who makes Stable Diffusion WebUI Forge?
Stable Diffusion WebUI Forge is made by lllyasviel.
Who makes StableDiffusionAI.ai?
StableDiffusionAI.ai is made by Mira Muse LLC.
Which should I choose, Stable Diffusion WebUI Forge or StableDiffusionAI.ai?
Choose Stable Diffusion WebUI Forge if you value faster than the original ui and runs on smaller gpus. Choose StableDiffusionAI.ai if you value free plan without watermark and commercial license included.