Google accidentally leaks its unreleased COSMO AI assistant app before Google I/O: Here’s what we know about it
Google briefly published COSMO, an experimental on-device AI assistant app, to the Play Store on May 1st before quietly pulling it. Built by Google Research, the app runs a local Gemini Nano model and packs 14 AI-powered Skills—including Deep Research, a Browser Agent via Mariner, and a Calendar Event Suggester. The accidental release, spotted by 9to5Google, likely previews a bigger announcement at Google I/O 2026.
Google briefly published COSMO, an experimental on-device AI assistant app, to the Play Store on May 1st before quietly pulling it. Built by Google Research, the app runs a local Gemini Nano model and packs 14 AI-powered Skills—including Deep Research, a Browser Agent via Mariner, and a Calendar Event Suggester. The accidental release, spotted by 9to5Google, likely previews a bigger announcement at Google I/O 2026.
