in terms of the quality of writing you can get models from 20GB at a similar level to GPT-4 (good for creative writing but much worse if knowledge of something is required)
the model I use (~20GB) would know what rclone is but would most likely not know how to use it
EDIT: now that I think about it is was based off of some benchmark. personally I wouldn't say it performs at GPT-4 but maybe GPT-3.5
yeah, my bad. edited the comment with more accurate info
and this does apply to creative writing, not knowledgeable stuff like coding