FLUX vs Stable Diffusion — Head-to-Head Comparison
Quick verdict: FLUX edges ahead
with a 4.7/5 rating vs 4.4/5.
See the full breakdown below.
Feature Comparison
| Feature | FLUX | Stable Diffusion |
|---|---|---|
| Three model tiers: pro API, dev research, schnell commercial | ✓ | — |
| State-of-the-art photorealism and portrait quality | ✓ | — |
| Superior long prompt comprehension | ✓ | — |
| Hybrid transformer architecture using Flow Matching | ✓ | — |
| Available on Hugging Face, Replicate, and fal.ai | ✓ | — |
| LoRA training support via community tools | ✓ | — |
| Fast inference with schnell variant in 1-4 steps | ✓ | — |
| FLUX.1 dev open weights for research use | ✓ | — |
| Improved text rendering over previous open models | ✓ | — |
| Growing fine-tune ecosystem on Civitai | ✓ | — |
| Fully open-source with publicly available model weights | — | ✓ |
| Local installation on Windows, Mac, and Linux | — | ✓ |
| SDXL and SD3 model variants for different use cases | — | ✓ |
| ControlNet for pose, depth, and edge conditioning | — | ✓ |
| LoRA support for custom style and character training | — | ✓ |
| img2img transformation and inpainting | — | ✓ |
| Outpainting via community interfaces | — | ✓ |
| Thousands of community fine-tunes on Civitai | — | ✓ |
| Commercial use allowed under Stability AI license | — | ✓ |
| DreamStudio cloud platform for no-install access | — | ✓ |
Pricing Comparison
| Plan | FLUX | Stable Diffusion |
|---|---|---|
| Starting price | Free | Free |
| Free plan | Yes | Yes |
| Pricing model | Freemium | Freemium |
Which Should You Choose?
Choose Stable Diffusion if...
The open-source AI image model that powers an entire ecosystem of tools
Visit Stable Diffusion