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 best Gran Turismo drivers in
July, learnt 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.
Sony’s rival, Microsoft, which recently bought Activision
for $69 billion, has been using games to improve AI by offering up new
challenges for AI models to solve.
Gran Turismo, a racing simulation video game, made its debut
in 1997 and has sold over 80 million units.
Sony wants to apply the learnings to other PlayStation
games.
“There are a lot of games that pose different challenges for
AI and we’re looking forward to starting to work on those problems,” he said. -Reuters
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