Tech firm OpenAI has managed to trounce some of the world’s best DOTA 2 players.

In a blog post on the company’s site, OpenAI talks about how its bot has beaten pros like Dendi, SumaiL and Arteezy during the last week at the DOTA 2 International tournament.

OpenAI has managed this with machine learning, so not teaching an AI how to play a game but rather by letting it play games and learn from experience.

“Success in Dota requires players to develop intuitions about their opponents and plan accordingly,” the post said.

“You can see that our bot has learned — entirely via self-play — to predict where other players will move, to improvise in response to unfamiliar situations, and how to influence the other player’s allied units to help it succeed.”

Last year, Google’s DeepMind made headlines by beating GO players. Recently the firm announced it was teaming up with Blizzard to test DeepMind against StarCraft 2.