
1. Stable Diffusion (Stability AI)Top pick
Best for: Tinkerers and small businesses who want to run and fine-tune image models themselves
66.5
score / 100
Why switch from FLUX (Black Forest Labs)
Open-weight models free for businesses under $1M revenue.
Pros
- Free for most individuals and small businesses
- Largest ecosystem of fine-tunes, LoRAs and tools
- Runs fully offline on your own hardware
Cons
- Needs a separate app and a capable GPU
- Base models trail the best hosted models on quality
- Not an OSI open-source licence; revocable if terms are broken
How this score is calculated
0 counted reviews, 0 up and 0 down votes. Full formula
Verified facts
4 of 4 verified- Free use threshold
- Under $1M annual revenue
- Checked Oct 25, 2026stability.ai(opens source in a new tab)
- Enterprise licence
- Required above $1M annual revenue
- Checked Oct 25, 2026stability.ai(opens source in a new tab)
- Self-hosting
- Yes, Stable Diffusion 3.5 on your own infrastructure
- Checked Oct 25, 2026stability.ai(opens source in a new tab)



