That has been tried, but hasn't turned out very well, since that's not exactly how creating a LLM works.

The nostr:npub1tayp5jjjfqx4ufukxqamsl28wd5pggvteqe6u9n3svjn62lfr0hsp89l42 has been built and trained from the ground up (it's not a GPT with a Bitcoin wrapper on it) on everything ever written or said about Bitcoin (by Satoshi and others in this space), and trained by Bitcoin maximalists on how to use all that data.

It doesn't have an animated avatar yet, though. 😏 But perhaps it will in the future...