AUTOMATIC1111 is a user interface for working with graphics AI.
The default deployment is set to the stable-diffusion 2.1 :
Also, after deployment, you can use the command line to upload additional models to the /stable-diffusion-webui/models/Stable-diffusion folder.
Open shell tab and past command wget -O /stable-diffusion-webui/models/Stable-diffusion/<NAME_MODEL>.safetensors <LINK_TO_MODEL>, example:
wget -O /stable-diffusion-webui/models/Stable-diffusion/epiCRealism.safetensors https://civitai.com/api/download/models/67990
Then go to web interface AUTOMATIC1111 and click on refresh:
And you can select dowloaded models:
enjoy!