I use this model for create (none nsfw) sci fi characters.
set 'PYTORCH_CUDA_ALLOC_CONF=garbage_collection_threshold:0.9,max_split_size_mb:512'
set COMMANDLINE_ARGS=--opt-split-attention --disable-nan-check --precision full --no-half --medvram --always-batch-cond-uncond
All photos maked on GTX1660 with 6B VRAM.