Dota 2 veterans defeated by OpenAI bots

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

In order to make the game manageable for AI bots, the game was tweaked a bit. Well, the AI platform developed by OpenAI would like to have a word, humans.

Next, OpenAI's developers plan to take the bots to Valve's official global tournament, where they'll compete against the best Dota 2 players in the world. The opening to the tournament saw members of the audience facing off against OpenAI as a sort of benchmark of their prowess. OpenAI Five uses a neutral network and machine learning to learn Dota is capable of playing up to 180 years worth of games against itself, every day.

The exhibition match was streamed live on Twitch and featured noted Dota 2 players Blitz, Cap, Fogged, Merlini, and MoonMeander. Now, the bots have shown that they are good enough to defeat gamers that have been playing Dota 2 for years. There were a few restrictions to drop features the bots hadn't yet learned to use, but OpenAI was able to reinstate some previously blocked aspects like wards and Roshan (a powerful neutral creep that can be farmed for XP gains). That's considered quite fast for a game of Dota 2, and the AI was confident. The team of former professional players and commentators was said to have ranked in the 99.95th percentile in the world. Something interesting to note is that after the humans paused the first game, and the bots paused game two.

The tournament was a best of three but clearly designed for fun more than goal.

The only possible bright point was that OpenAI let the final match composition be chosen by the audience, meaning the audience stepped in to vote for which heroes OpenAI would control. Without the ability to build a team it knew how to play, the AI was at a disadvantage.

Open AI Five predicted a 2.9% chance of winning, later improving this to 17% but lost after 35 minutes and 47 seconds. "The typical Dota 2 game, even on the professional tier, involves quite a bit of equivocation about whether to engage in a fight, or whether to try to shift it to a more favorable battleground, or to run away from it completely".



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