Yeah, I know, but a lot of this content can be pretty sensitive, and might not be allowed to upload outside organization networks sometimes (hospitals, governments etc).
Like most software, LLMs can be run locally, or on private infrastructure. This was on the front page yesterday, which is not the only way to run an LLM locally, but about the easiest way possible: https://news.ycombinator.com/item?id=38464057