AI Image Generation
Stable Diffusion vs FLUX
A detailed comparison of Stable Diffusion and FLUX — features, pricing, and use cases to help you choose.
Overview
| Stable Diffusion | FLUX | |
|---|---|---|
| Vendor | Stability AI | Black Forest Labs |
| Starting Price | $0 (self-hosted) | $0 (self-hosted) |
| Free Tier | Yes | Yes |
| API Available | Yes | Yes |
Feature Comparison
| Feature | Stable Diffusion | FLUX |
|---|---|---|
| Text-to-image | ✅ | ✅ |
| ControlNet | ✅ | ❌ |
| LoRA support | ✅ | ✅ |
| Inpainting | ✅ | ❌ |
| Local deployment | ✅ | ❌ |
| Superior text rendering | ❌ | ✅ |
| Kontext (image editing) | ❌ | ✅ |
| Multiple model sizes | ❌ | ✅ |
Pricing
Stable Diffusion
- Free (local)
- Stability API
FLUX
- Free (local)
- API via partners
API Pricing
| Stable Diffusion | FLUX | |
|---|---|---|
| Pricing | Varies by hosting | Varies by provider (Replicate, fal.ai, etc.) |
Best For
Choose Stable Diffusion if you need:
- Custom models
- Local generation
- Full control
- NSFW content
Choose FLUX if you need:
- Text in images
- Photorealism
- Open-source workflows
Limitations
Stable Diffusion
- Requires GPU
- Setup complexity
- Quality below Midjourney
FLUX
- High VRAM requirements
- Newer ecosystem
Verdict
Both Stable Diffusion and FLUX are strong choices in the AI Image Generation space. Your decision should depend on your specific needs — custom models vs text in images.
Last updated: 2026-04-10. Pricing and features may have changed since publication.