Elite Dota 2 Team Easily Beat by Advanced AI Bots

Watch OpenAI's Dota 2 bots square off against five top players live on Twitch today

The OpenAI bots this weekend beat high-profile former Dota players Ben "Merlini" Wu, William "Blitz" Lee, Ioannis "Fogged" Lucas, as well as current pro player David "MoonMeander" Tan and play-by-play commentator Austin "Capitalist" Walsh.

After OpenAI took down members of the audience easily during a warmup round, the bot network started and finished the first of the two matches strongly, stopping its human opponents from destroying any of its defensive towers. Even though the artificial intelligence bested the professional Dota 2 players two-out-of-three, the humans managed to score a victory in the third match. The OpenAI Five are now headed to The International, a worldwide event later this month where the world's best Dota 2 players will battle it out for the chance to be crowned 2018's Dota 2 champions.

In front of 100,000 live-streamers, the bot team easily took out the best-of-three tournament, winning the first game in 21.5 minutes and the second in just under 25 (evenly matched games generally take around 45 minutes).

After winning the first two games comprehensively, OpenAI let the audience pick five human players to compete in the dead rubber match which it lost. Without the ability to build a team it knew how to play, the AI was at a disadvantage.

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OpenAI's initiatives with Dota 2 began in March a year ago. The bots nevertheless fought a hard battle, at one point predicting a 17% win probability before succumbing to Team Human's assault 35:47 into the game.

We previously reported on the massively complex undertaking it took for OpenAI to train the bots through reinforcement learning, which involved putting them into a virtual world and using trial and error to help them figure out for themselves how to reach a goal. These are all people who now or previously play Dota 2 professionally - they're in the 99.95th percentile of human players.

Following the victory, Musk tweeted congratulating the OpenAI team. To recall, in June this year, OpenAI Five beat an amateur team. Well, the AI platform developed by OpenAI would like to have a word, humans.

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