Stable Diffusion 2.0 seems to have been a step backwards in capabilities and quality. Many people went back to v1.5 for their business.

The difficulty in 2.0 was in part caused by:

1. Using a new language model that is trained from scratch
2. The training dataset was heavily censored with a NSFW filter

The second part would have been fine, but the filter was quite inclusive and has removed substantial amount of good-quality data. 2.1 promised to bring the good data back.

Installing Stable Diffusion 2.1

If you’re interested in trying Stable Diffusion 2.1, use this tutorial to installing and use 2.1 models in AUTOMATIC1111 GUI, so you can make your judgement by using it.

You might also try this tutorial by TingTing

Links:

• https://stable-diffusion-art.com/install-stable-diffusion-2-1/
• https://stable-diffusion-art.com/models/#Stable_diffusion_v15
• https://stable-diffusion-art.com/beginners-guide/