Sony's new AI beats humans in Gran Turismo racing game

Sony Group Corp. said on Wednesday it had created an artificial intelligence agent called Gran Turismo Sophy (GT Sophy) that was able to beat world's best drivers of the PlayStation racing simulation game Gran Turismo. To get GT Sophy ready for the game, different units of Sony brought in fundamental AI research, a hyper-realistic real world racing simulator, and infrastructure for massive scale AI training, the company said in a statement. The AI first raced against four top Gran Turismo drivers in July, learned from the race and outperformed the human drivers in another race in October. "It took about 20 PlayStations running simultaneously for about 10 to 12 days to train GT Sophy to race from scratch to superhuman level," said Peter Wurman, director of Sony AI America and the leader of the team who designed the AI. While AI had been used to defeat humans in the games of chess, mahjong and go, Sony said the difficulty in mastering race car driving was the many decisions that need to be made in real time.