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How Gran Turismo's 'Sophy' Actually Works | AI and Games

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'GT Sophy' made a splash in early 2022 as it was declared to be a new type of AI racer for Gran Turismo that could leave many a professional player in the dust. It's time to find out how it works, and the story of where it comes from.


A written version of this episode is available at:

If you're keen to find out more, here are all the research materials used for this episode:

"Neural Networks Overtake Humans in Gran Turismo Racing Game"

"Outracing Champion Gran Turismo Drivers with Deep Reinforcement Learning"

"Superhuman Performance in Gran Turismo Sport using Deep Reinforcement Learning"

"Autonomous Overtaking in Gran Turismo Sport Using Curriculum Reinforcement Learning"

The Sony AI YouTube Channel

The Gran Turismo TV YouTube Channel

The Gran Turismo Sophy Website

Footage of Tesla AI Driving by 'Whole Mars Catalog'


Video Chapters:
[00:00] Intro
[01:23] Sony AI
[05:02] The Goal of Sophy
[09:30] Sophy's 'Brain'
[15:59] Learning to Race
[19:23] Rewarding Good Racing
[23:44] Training a Champion
[30:34] Open Challenges
[31:38] Credits

Music in this episode is by TeknoAxe:

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