Sony has unveiled GT Sophy, an artificial intelligence capable of beating the world’s best players in the Gran Turismo racing sim.
Hi there 👋 we’d like to share our latest step in innovation with you…
Meet @TheGranTurismo Sophy, a superhuman racing AI agent developed in collaboration across Sony to specifically deliver a breakthrough gaming experience: https://t.co/gai90dxvZv pic.twitter.com/827g4P45BT
— Sony (@Sony) February 9, 2022
According to the creators, the AI outperforms algorithms designed for chess and go games, as well as AlphaStar and OpenAI Five programs designed for StarCraft II and DOTA 2 games, respectively.
The researchers taught the gaming GT Sophy to drive a digital car, take into account the physics and capabilities of the car. The algorithm has also mastered racing tactics such as sliding, overtaking and blocking, using unspoken track etiquette.
To create GT Sophy, engineers used deep reinforcement learning. The algorithm was placed in an environment where it learned the rules of the game on its own in a few hours, and after a “day or two” was able to drive faster than 95% of the drivers in the training set.
The developers also thought over the reward system. For example, they fine-tuned the penalty points for AI for collisions with other cars. This allowed for an aggressive driving style for the agent without intimidating other riders.
The algorithm was trained on the DART cloud platform created by Sony AI. To do this, the laboratory specialists used more than a thousand PlayStation 4 consoles.
As a result, the AI agent managed to beat some of the best players in Gran Turismo Sport. In July 2021, the algorithm lost to rider Takuma Miyazono as well as the other top three players. Three months later, in a re-competition, the AI defeated humans.
In the team race, the algorithm outscored the players twice.
According to Sony AI CEO Hiroaki Kitano, GT Sophy is a major achievement in the field of artificial intelligence.
“In addition to contributing to the gaming community, we believe this breakthrough opens up new opportunities in areas such as autonomous racing, autonomous driving, high-speed robotics and control,” he said.
The developers plan to add the algorithm to other games in the Gran Turismo series. Players may be able to get Sophy as a driving coach or race partner.
GT Sophy is the result of a collaboration between Sony Interactive Entertainment (SIE) gaming division, Gran Turismo developer Polyphony Digital (PDI) and Sony AI Innovation Lab.
Recall that in April 2021, Sony patented an AI that plays video games instead of the user.
In July, the developers of FIFA 22 announced the use of machine learning to create realistic animations of football players.
In the same month, an AI enthusiast used neural networks to copy a working fragment of GTA V.
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