Don't believe there is a Fund as opposed to individual stock, but that would be preferred.

Starsky Robotics look great a while back but no longer in business due to funding.

NVIDA is decent but their main objective isn't Artificial Intelligence but maybe that is safer. (See Starsky Robotics above)

Is a startup company the best or go with one more established?

What part of the AI is the best for investment?

We put some money into "AIO" for the looooooong term. Don't remotely care about the short term performance. I just checked and it's at $16+ and still paying an 8% divi. Not to much to worry about as it's loaded with big guys and small soon to be acquired babies.