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

Ultrahuman Ring Pro Brings Better Battery Life, More Action and Analysis

The company’s new flagship smart ring stores more data, too. But that doesn’t really help Americans.

Sick of your smart ring’s battery not holding up? Ultrahuman’s new $479 Ring Pro smart ring, unveiled on Friday, offers up to 15 days of battery life on a single charge. The Ring Pro joins the company’s $349 Ring Air, which boosts health tracking, thanks to longer battery life, increased data storage, improved speed and accuracy and a new heart-rate sensing architecture. The ring works in conjunction with the latest Pro charging case.

Ultrahuman also launched its Jade AI, which can act as an agent based on analysis of current and historical health data. Jade can synthesize data from across the company’s products and is compatible with its Rings.

«With industry-leading hardware paired with Jade biointelligence AI, users can now take real-time actionable interventions towards their health than ever before,» said Mohit Kumar, CEO of Ultrahuman.

No US sales

That hardware isn’t available in the US, though, thanks to the ongoing ban on Ultrahuman’s Rings sales here, stemming from a patent dispute with its competitor, Oura Ring. It’s available for preorder now everywhere else and is slated to ship in March. Jade’s available globally.

Ultrahuman says the Ring Pro boosts battery life to about 15 days in Chill mode — up to 12 days in Turbo — compared to a maximum of six days for the Air. The Pro charger’s battery stores enough for another 45 days, which you top off with Qi-compatible wireless charging. In addition, the case incorporates locator technology via the app and a speaker, as well as usability features such as haptic notifications and a power LED.

The ring can also retain up to 250 days of data versus less than a week for the cheaper model. Ultrahuman redesigned the heart-rate sensor for better signal quality. An upgraded processor improves the accuracy of the local machine learning and overall speed.

It’s offered in gold, silver, black and titanium finishes, with available sizes ranging from 5 to 14.

Jade’s Deep Research Mode is the cross-ecosystem analysis feature, which aggregates data from Ring and Blood Vision and the company’s subscription services, Home and M1 CGM, to provide historical trends, offer current recommendations and flag potential issues, as well as trigger activities such as A-fib detection. Ultrahuman plans to expand its capabilities to include health-adjacent activities, such as ordering food.

Some new apps are also available for the company’s PowerPlug add-on platform, including capabilities such as tracking GLP-1 effects, snoring and respiratory analysis and migraine management tools.

Technologies

The FCC Just Approved Charter’s $34.5B Cox Purchase. Here’s What It Means for 37M Customers

Technologies

Spotify Expands Into Audiobook Rankings With Weekly Charts

The feature is available to both free users and Premium subscribers. Wuthering Heights is reaching the heights on both the US and UK charts.

If you’re a Spotify user, you may be familiar with features like the year-end summary Wrapped, as well as your daily usage stats. Now, the service has a new popularity chart tracking audiobooks.

Spotify’s audiobook charts are now available to free and Premium users within the service’s Audiobooks hub. While only Premium users receive 15 hours of audiobook listening per month, the company offers a larger selection of titles you can buy.

US charts and UK charts are both available now.

Read more: Best Music Streaming Services for 2026

Spotify says that the audiobook charts will help customers discover new and popular titles in real time.

«As we’ve proven with Music and Podcasts Charts, when content is easier to access, discover, and enjoy, the demand grows,» said Duncan Bruce, Spotify’s director of audiobook partnerships and licensing, in a statement on Friday.

Spotify launched audiobooks in 2022, and has since added features such as the AI catchup tool Recaps and PageMatch, which lets you swap more easily between a printed book and the audio version.

Spotify Premium currently costs $13 a month and includes more than 100 million songs, as well as audiobooks. Spotify Premium is currently CNET’s Editors’ Choice for best music streaming service.

The current US audiobooks chart lists Emily Brontë’s romantic classic Wuthering Heights as the top listen, followed by James Clear’s self-help book Atomic Habits and Freida McFadden’s psychological thriller The Housemaid. Audiobook popularity is also broken down by genre, with charts for romance, mystery and thriller books, self-help, science fiction and fantasy, biography and memoir, business and careers, teen and young adult, religion and spirituality, history, and parenting and relationships.

Powered by its blockbuster movie adaptation starring Margot Robbie and Jacob Elordi, Wuthering Heights also leads the overall chart for the UK.