Without considering salaries you can look up the costs for their compute: https://cloud.google.com/compute/pricing
128,000 CPUs and 256 GPUs I think they mention training for 2 months in the video
Wow, very excited about this. I don't know too much about RL, but for me the "170,000 possible actions per hero" seems far too large an output space to be feasible. What happens if the bot wants to do an invalid action? Nothing, or some penalty for selecting something invalid?