Flux
Free TierOpen-source high-quality AI image generation
Based on 3,200 reviews • Last updated February 16, 2026
What is Flux?
Flux is an open-source AI image generation model by Black Forest Labs (founded by Stable Diffusion creators). It delivers exceptional image quality rivaling Midjourney, with multiple variants (Schnell for speed, Dev for quality, Pro for maximum quality) and full open-source availability.
Best for:
AI artists and developers who want Midjourney-quality images with open-source flexibility
Pros & Cons
✓ Pros
- ✓Exceptional image quality
- ✓Open-source (Schnell)
- ✓Created by Stable Diffusion team
- ✓Multiple variants for different needs
- ✓Fast generation with Schnell
✕ Cons
- ✕Requires powerful GPU for local use
- ✕Pro model is API-only
- ✕Newer ecosystem than Stable Diffusion
- ✕Documentation still growing
Key Features
Use Cases
Frequently Asked Questions
Is Flux better than Stable Diffusion?
Flux generally produces higher quality images than Stable Diffusion XL, especially for photorealism. It was created by the same team that developed Stable Diffusion.
Can I run Flux locally?
Yes, Flux Schnell is fully open-source and can run locally. You need a GPU with at least 12GB VRAM for good performance.
What is the difference between Flux Schnell, Dev, and Pro?
Schnell is the fastest (open-source, good quality), Dev is higher quality (non-commercial), and Pro delivers maximum quality via API with commercial licensing.
Flux Alternatives
Stable Diffusion
Open-source AI image generation
Midjourney
The leading AI image generation tool
DALL-E 3
OpenAI's image generation model