Twitter is considering adding subscription fees for some of its features, revenue product lead Bruce Falck said Monday.

“You will see us continue to research and experiment with ways to further diversify our revenue beyond ads in 2021 and beyond,” Falck said in a statement. “These may include subscriptions and other approaches that will give people and businesses of all sizes on Twitter access to unique features and enhanced opportunities for content creation, discovery, and engagement.”

Twitter did not share any further details on its plans, but Bloomberg reported the social media company is considering plans to add features for users to pay people they follow for exclusive content.