OpenAI Five Dota 2 Bots Beat Top Human Players

A team of former Dota 2 pros just got owned by AI bots

Credit OpenAI

Comprised of five neural networks, one of which crushed a pro player in a 1 v 1, the OpenAI team has already defeated plenty of Dota 2 amateurs and is now going full S̶k̶y̶n̶e̶t pro.

A lot of humans think they're so good at video games that they make the point of describing themselves as "gamers". The bots completely overpowered Team Human in the first game, with the players unable to destroy any of the of the bots' towers before the end of the match. Apparently, the five-on-five bot team has been in development all year, but this was the first true competition against real professionals. If the the OpenAI Five are victorious, they not only join the pantheon of machines that have publicly beaten humans at games (Deep Blue, Watson, AlphaGo), but will have done so in a game that balances several real-time interactions at once.

OpenAI, an AI startup funded by Elon Musk, has created a general-purpose AI that has been trained to play Valve's popular eSports game Defense of the Ancients 2 so well that the program, duplicated across 5 playing bots, managed to best a team of current and former pro players. "You have imperfect information, you have team work, you have these exponential combinations of different heroes and items, and you have to be able to deal with all of that". After all, the victory of the non-profit AI research company's bot collective over humans in a strategic MMORPG is just one of many instances of computational technology growing smarter by the day.

In preparation this year's Valve International 8 later this month has an OpenAI Five Benchmark match was held in San Francisco on August 5th. Heroes in Dota 2 often interact in complex ways. This was a best-of-three against a team of 99.95th percentile Dota players: Blitz, Cap, Fogged, Merlini, and MoonMeander - four of whom had played Dota professionally - in front of a live audience and 100,000 concurrent livestream viewers.

Open AI Five predicted a 2.9% chance of winning, later improving this to 17% but lost after 35 minutes and 47 seconds.

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