And most importantly... does it rare-draft ?

Synergy, color, power, curve, rarity... what does it care about, and how much ?

Can you look at card pools AI's drafted ?

This is kind of unsettling, isn't it - a computer progam decides what stuff to take away from you. Especially if don't even know how.

The ai are trying to draft to win, which means they don't rare draft at all.

That's the only stated rule I know of.

The bots do pick their colors and stick to them and they don’t seem to counterdraft. That means they won’t consider off-color splashing if they see a good card in packs two and three and some good cards wheel or are not picked very late. For example, I’ve picked a siege-gang commander as pick 21 yesterday; I don’t think that is possible with humans even if none of them is in red.

Regarding how they pick, Chris Clay mentioned they used data accumulated from MTGO, so I guess each card is assigned weight according to how early it is picked by humans on average. They don’t track synergy or other complex things.

Yondar do you happen to have the link where he addresses the IA of draft...

I think he explained it briefly in the Dominaria update video. The first paragraph in my comment above are my own observations after drafting a dozen or so times, though, not something Chris said.