LLMs act nothing like our brains and they aren't trained on facts.

LLMs are essentially complicated mathematical equations that ask “what makes the most sense as the next word following this one?” Think autosuggest on your phone taken to the extreme limit.

They do not think in any sense and have no knowledge or facts internal to themselves. All they do is compose words together.

And this is also why they’re garbage at math (and frequently lie, and why they can’t “remember” anything). They are simply stringing words together based on their model, not actually thinking. If their model shows that the next word after “one plus two equals” is more likely to be four than three, they will simply answer four.

Communicate? Sure. Know facts? Not so much.

This lil robot was trained to know facts and communicate via natural language.

Oh stop it. It does not know what a fact is. It does not understand the question you ask it nor the answer it gives you. It's a very expensive magic 8ball. It's worse at maths than a 1980s calculator because it does not know what maths is let alone how to do it, not because it's somehow emulating how bad the average person is at maths. Get a grip.