A good example is creative/idea work vs fact work. You don't want creative facts, and you don't want fact bounded creativity. You either have a prompt ready to

A good example is creative/idea work vs fact work. You don't want creative facts, and you don't want fact bounded creativity. You either have a prompt ready to paste, to prime the conversation/context, or you can use a personality. One "über" AI is great, but it requires guidance into the context you're interested in, including yourself. For example, the default ChatGPT will assume you're uneducated about any topic you ask about. I think this all fits perfectly into what Sam Altman talked about in the Lex Friedman podcast: people want an AI that fits their own worldview/context. Custom instructions, and "about yourself" are good starts, but sometimes you want to talk to a chef, and sometimes a scientist.