Question 1

Is Stable Diffusion really free?

Accepted Answer

The models are. Running them is not — you need a GPU with enough VRAM, or you rent cloud compute, which usually costs more than a subscription once you account for your time.

Question 2

What hardware do I need?

Accepted Answer

Broadly, a modern GPU with 8GB+ of VRAM for smaller models and considerably more for the larger ones. Apple Silicon works but is slower.

Question 3

Which produces better images?

Accepted Answer

A well-configured local setup with the right LoRAs can beat almost anything. An out-of-the-box local install usually does not. The gap is expertise, not the model.

IMGX Studio vs Stable Diffusion