You can run stable diffusion on a MBP and produce images in under a minute. It's training these models that takes the crazy GPU power - running them is quite reasonable.
Stable diffusion is about the only one of these useful groundbreaking models that can run on normal hardware to some extent, and even that's extremely limited with only like what, 256x256 being possible with a 6G card and 512x512 on a 10G card? So thanks for pointing out the one partial exception.
The training with a beefy GPU from vast.ai (RTX 3090 with 24vram) and Im generating the images with a GTX 1080 with 4vram, so no need for 6 or even 10 GVram from my testing