Technologies

Sony AI outraces humans in Gran Turismo car racing game

Using a bank of 1,000 PlayStation 4 consoles as a virtual training ground, Sony taught an artificial intelligence system to outplay the best humans.

Over the last two years, Sony AI trained a computer system to play Polyphony Digital’s Gran Turismo Sport, a popular and realistic car racing game, and beat some of the world’s best human competitors, Sony said on Wednesday.

The AI, named GT Sophy, defeated top humans only in time trials when there were no other cars on the track during a July competition. But by October, GT Sophy beat the humans even with a scrum of virtual race cars.

GT Sophy is the latest experiment demonstrating that AI can be victorious at games such as chess and Go, which were long thought to be the domain of human intelligence. AI has also beaten people at classic Atari video games and the Starcraft real-time strategy game.

AI today generally refers to a process for programming computers using a technology known as neural networks, which mimic the way human brains work. Sony’s achievement is notable enough to warrant a research paper in the prestigious journal Nature.

A car racing video game, like Gran Turismo, presents open-ended tactical choices as well as simulated rules of physics. GT Sophy picked new ways to approach them, one of the human competitors said.

«The AI drives in a way that we would never have come up with,» said Takuma Miyazono, who won three challenges in the FIA Gran Turismo 2020 World Finals, speaking in a video. He said GT Sophy’s tactics made sense when he saw it drive.

Many AI systems are trained with real-world data through a system called deep learning that gives them the ability to recognize faces and to spot spam. GT Sophy used a different technique called reinforcement learning that starts with an entirely untrained system that has no idea what to do. It raced courses over and over again, following a human-designed reward system that encouraged better results and eventually mastered the game.

One particular difficulty was figuring out the unwritten rules of car racing, such as avoiding collisions and not inappropriately cutting off other drivers.

«We all underestimated how hard it would be to get the sportsmanship side right,» said Sony AI Director Peter Wurman in the video. «To do that without being overly aggressive or overly timid in the face of competitors.»

Sony AI ran simulations on computers connected to a bank of more than 1,000 PlayStation 4 game consoles.

As is common in AI, Sony trained its versions of Sophy GT using fast graphics chips. To run the simulations, it used computers with conventional processors.

Technologies

Xbox Game Pass Adds Grounded 2 and Others This Month

Game Pass subscribers will also be able to play the new 90s-inspired horror game Abiotic Factor.

The award-winning, quirky survival game Grounded is like the game version of the classic ’80s comedy film Honey, I Shrunk the Kids. And Xbox Game Pass subscribers can get early access to that game’s sequel, Grounded 2, on July 29.

Xbox Game Pass Ultimate, a CNET Editors’ Choice award pick, offers hundreds of games you can play on your Xbox Series X, Xbox Series S, Xbox One and PC or mobile device for $20 a month. A subscription gives you access to a large library of games, with new ones, including Doom: The Dark Ages, added monthly, plus other benefits such as online multiplayer and deals on non-Game Pass titles.

Here are the games Microsoft is bringing to Game Pass soon. You can also check out other games the company added to the service recently, like Tony Hawk’s Pro Skater 3 + 4.

RoboCop: Rogue City

Game Pass Ultimate, PC Game Pass and Game Pass Standard subscribers can play now.

Serve the public, protect the innocent and uphold the law as the cyborg RoboCop. You’ll investigate crimes in Old Detroit before using your cyborg strength, cybernetic implants and arsenal of weapons to eradicate gangs from the area. This game is a whole new RoboCop story based on the film series, and Peter Weller, the original RoboCop himself, returns to voice the titular character.

My Friendly Neighborhood

Game Pass Ultimate and PC Game Pass subscribers can play now.

Something’s going on with everyone’s favorite Saturday morning puppet show, and it’s up to you to figure out what in this survival horror game. You’ll solve puzzles and use tools and improvised weapons to fend off your multicolored foes. So if you have anything against Barney or Big Bird, you can take out your feelings on them with this game.

Back to the Dawn

Game Pass Ultimate and PC Game Pass subscribers can play now.

This game is like if the series Prison Break took place in the Zootopia universe. You’ll play as either a fox named Thomas or a black panther named Bob as they try to navigate the prison system and escape with their lives. With multiple escape routes and over 100 quests you can complete, you can replay this game numerous times and have a different experience each time.

Abiotic Factor

Game Pass Ultimate and PC Game Pass subscribers can play on July 22.

Science meets violence in this 1990s-inspired sci-fi survival game. You and up to five other players can choose your areas of expertise, build your scientist and explore a massive, top-secret underground complex filled with artifacts and supernatural horrors that could tear you limb from limb. And remember, safety, security and secrecy are of the utmost importance… usually.

Wheel World

Game Pass Ultimate and PC Game Pass subscribers can play on July 23.

If you want to take a nice, relaxing bike ride, this game is for you. Previously known as Ghost Bike, this game puts you behind the handlebars of one of the last ghost bikes around. These bikes can traverse between the lands of the living and the dead. You can explore these lands at your leisure while you race other riders and upgrade your ride with treasures you find along the way.

Wuchang: Fallen Feathers

Game Pass Ultimate and PC Game Pass subscribers can play on July 24.

This souls-like RPG is set during the final days of the Ming Dynasty. You play as an amnesiac pirate warrior named Wuchang on a quest to uncover the truth behind a world full of chaos. You’ll fight monstrous creatures in forgotten temples and overgrown ruins, unlock new weapons and master devastating techniques in order to bring peace to yourself and others.

Grounded 2 (game preview)

Game Pass Ultimate and PC Game Pass subscribers can play on July 29.

You’ve been shrunk to the size of an ant — again — and you’ll have to survive the dangerous, miniature world. You’ll fight spiders and wasps, craft weapons and homes and even ride on your own insect friends to get around. You’ll unravel new mysteries along the way, but be careful. Something else is out there, and it hasn’t forgotten about you.

Farming Simulator 25

Game Pass Ultimate, PC Game Pass and Game Pass Standard subscribers can play on Aug. 1.

Farming isn’t always as simple as games like Stardew Valley might make it out to be, but it can still be very rewarding. If you want a taste of what goes into building and maintaining your own farm, give Farming Simulator 25 a try. You’ll grow diverse crops, raise different animals and with the weather-changing, ground-deforming atmosphere, you’ll face all kinds of challenges along the way.

Games leaving Game Pass on July 31

While Microsoft is adding those games to Game Pass soon, it’s also removing three other games on July 31. So you still have some time to finish your campaign or complete any side quests before you have to buy these games separately.

Gigantic: Rampage Edition
Kunitsu-Gami: Path of the Goddess
Turnip Boy Robs a Bank

For more on Xbox, discover other games available on Game Pass now, read our hands-on review of the gaming service and learn which Game Pass plan is right for you. You can also check out what to know about upcoming Xbox game price hikes.