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Can you tell a fake face from a real one?

The photo on the left is real while the one on the right is AI-generated. The WhichFaceIsReal site features photos of real people alongside AI-generated fakes of people who do not even exist. Computer-generated fakes - unlike digitally altered pictur
Picture 1: Which is real and which is fake? Scroll for answer at the end of article. The WhichFaceIsReal site features photos of real people alongside AI-generated fakes of people who do not even exist. Computer-generated fakes - unlike digitally altered pictures - cannot be detected by tools such as Google's Reverse Image search.PHOTO: WHICHFACEISREAL.COM

Concern over misuse of AI-created fakes

How can you tell if someone is real?

Not the usual question, but expect it to become more common with artificial intelligence (AI) fakes - realistic-looking photos of people who do not exist.

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A version of this article appeared in the print edition of The Sunday Times on March 10, 2019, with the headline 'Can you tell a fake face from a real one?'. Print Edition | Subscribe