"I absolutely think that we can be a leader in artificial intelligence, and I think its future importance to commerce is significant," Wenig said. "I think horizontal use cases of AI are very far away — this idea that you'll talk to something and it will do anything for you. ... It's the vertical use cases that are going to win overall."
Amazon and eBay aren't alone in the field of artificial intelligence, as both technology companies and retailers experiment with new ways to monetize the web's most popular destinations.
Though both Wenig and Bezos have hammered the importance of artificial intelligence, Wenig said eBay will stay away from other Amazon strategies, like ramping up faster delivery. Instead, eBay will focus less on speed and more on providing unique products and breadth of selection, Wenig said.
"My entire philosophy is to be less like our competitors, and not more like our competitors," Wenig said. "I don't think there's anything wrong with fast shipping, but I don't think 100 percent of a $17 trillion commerce market will be defined by it."