Ronnie Chatterji has a new workout buddy, and it lives in his phone. The OpenAI chief economist doesn’t just help shape global policy on artificial intelligence, he uses it to count his calories.

“I take pictures of what I eat,” Chatterji says of his ChatGPT-powered fitness assistant. “It remembers what I ate the last meal, and helps me understand if, especially on a trip like this, if I’m being balanced.”