Zeteo is a media company and Substack newsletter founded by British American commentator Mehdi Hasan on April 15, 2024 after he quit MSNBC due to his talk show's cancellation. Hasan said it costed $4 million to launch the outlet and that it reports from a left-wing perspective, covering news not reported by mainstream media outlets. Zeteo has been called an alternative media outlet that espouses progressive values. Various personalities such as Greta Thunberg and Naomi Klein wrote for Zeteo.
Zeteo publishes daily news and holds a weekly talk show, Mehdi Unfiltered, hosted by Hasan, and a weekly podcast. The outlet has a YouTube channel with 1.8 million subscribers and uploads four to five videos per week.