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FLUX vs Stable Diffusion WebUI
A factual side-by-side comparison of FLUX and Stable Diffusion WebUI. We compare pricing, categories, free tiers and official websites — no invented scores.
Updated 2026-10-22
Quick take
FLUX is Freemium; Stable Diffusion WebUI is Free. If you want to start free, check the free or freemium option first; otherwise compare the categories and taglines below.
The most popular local UI for Stable Diffusion
AI Open SourceImage
Visit website| Pricing | Freemium | Free |
|---|---|---|
| Categories | Image | AI Open Source / Image |
| Best for | From the original Stable Diffusion team | The most popular local UI for Stable Diffusion |
| Free tier | Yes — free or freemium | Yes — free or freemium |
| Website | blackforestlabs.ai | github.com |