Sadly all the AI is owned by companies that want to do all your art and writing so that they can keep you as a slave doing their laundry and dishes. Maybe we'll eventually see powerful LLMs running locally so that you don't have to beg some cloud service for permission to use it in the ways you want, but at this point most people will be priced out of the hardware they'd need to run it anyway.

However you feel about LLMs or AI right now, there are a lot of people with way more money and power than you have who are primarily interested in further enriching and empowering themselves and that means bad news for you. They're already looking into how to best leverage the technology against you, and the last thing they care about is what you want.