X owner Elon Musk told advertisers in a live discussion on Wednesday that the platform plans to introduce ads in Grok’s responses, as reported by the Financial Times. The move would help power X’s struggling ads business following the departure of former CEO Linda Yaccarino.

“Our focus thus far has just been on making Grok the smartest, most accurate AI in the world and I think we’ve largely succeeded in that,” Musk said during the broadcast. “So we’ll turn our attention to how do we pay for those expensive GPUs.”

Musk told advertisers that X would allow marketers to pay to appear in suggestions from the AI chatbot.

“If a user’s trying to solve a problem [by asking Grok], then advertising the specific solution would be ideal at that point,” he said.

The billionaire entrepreneur also plans to use technology from xAI, his AI startup, to improve the targeting of ads on the social network. xAI acquired X earlier this year for $45 billion.