For best outputs and usage:

Sampler: DPM++ 2M Karras

Steps: 40 ~ 50, cfg 7, CLIP skip 2.

VAE: sdxl_vae.safetensors.

This is a versatile kind of model, which means it's able to go from a pretty acceptable realism to anime, passing by 3D cartoon or semi-realism. It knows many art styles and artists.

Prompts: in order to switch between level of realism, simply pair pos and neg prompts. For example, a realism output should have "Photorealism" in the pos and "cartoon" in the neg, and vice versa. By default the model is set to realism.