AI beats top 'Dota 2' players in one-on-one matches

Engadget 

The Elon Musk-backed OpenAI team has developed a machine learning system that has beaten "many" of the best pro Dota 2 players in one-on-one matches, including star player Dendi during a live demonstration at The International. The result is an AI that not only has the fundamentals nailed down, but understands the nuances that take human players a long time to master. And it doesn't take too long to learn, either; OpenAI's creation can beat regular Dota 2 bots after an hour of learning, and beat the best humans after just two weeks. One-on-one matches are far less complex than standard five-on-five matches, and it's notable that the machine learning system doesn't use the full range of tactics you see from human rivals.