TL;DR
- Google just published a mysterious new ‘COSMO’ app to the Play Store.
- COSMO is equipped with a Gemini Nano model in addition to server-side AI, and feels designed for developmental purposes.
- The app listing is quite rough and may suggest this was published prematurely.
Update, May 1, 2026 (2:31 PM ET): Well, we may have been closer to the mark than we realized with that “not quite ready for prime time” observation, because Google just pulled COSMO’s Play Store listing. We can still view the page when logged in with accounts that have already installed COSMO, but everyone else is getting a “not found” message.
Original article, May 1, 2026 (1:44 PM ET): Google isn’t exactly shy about giving us access to its latest AI experiments. When it’s not deploying updated Gemini models for us to try out, it’s testing new AI-powered features in apps like YouTube. This week, though, we’re getting something a little bit different, as Google introduces a new Android app to the Play Store: COSMO.
