Stable Diffusion vs FLUX
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A detailed comparison of Stable Diffusion and FLUX in 2026 — features, pricing, and which tool is right for you.
| Stable Diffusion | FLUX | |
|---|---|---|
| Rating | ★ 4.3/5 | ★ 4.4/5 |
| Pricing type | Free | Freemium |
| Starting price | Free (self-host) | Free (open) / API-based |
| Category | AI Image Generators | AI Image Generators |
| Founded | 2022 | 2024 |
| Key features | Open source, Runs locally (offline), Thousands of community models | High image quality, Strong prompt adherence, Open version runs locally |
Stable Diffusion
The free, open-source image generation model
Stable Diffusion is an open-source model that runs on your own computer, with limitless customization through LoRA and community models. The choice for anyone who wants total control.
Pros- Free and unlimited
- Limitless customization
- Runs offline, fully private
- Requires a powerful GPU
- Complex technical setup
FLUX
Next-generation open-source image model
FLUX (by Black Forest Labs) is a family of high-quality image generation models known for detail and strong prompt adherence. An open version runs locally and is integrated into many tools.
Pros- Outstanding image detail
- Free open-weight version available
- Integrated into many tools
- Local version needs a powerful GPU
- Requires extra tools to use
Stable Diffusion vs FLUX: Which one should you choose?
If you prioritize free and unlimited, Stable Diffusion is worth considering. Conversely, if outstanding image detail matters more to you, go with FLUX. Both offer a free trial option, so it is best to try them out yourself before deciding.