Google's Gemma 4 puts free agentic AI on your phone and no data ever leaves the device Key Points - Google's open-source model Gemma 4 can process text, images, and audio entirely on-device and autonomously use tools like Wikipedia, interactive maps, or QR code generators through built-in agent skills. - The smaller smartphone variants E2B and E4B run on devices with just 6 and 8 GB of RAM respectively, deliver up to four times the speed of the previous generation according to Google, and serve as the foundation for the upcoming Gemini Nano 4 on Android. - All models are released under the commercially friendly Apache 2.0 license, developers can create and share custom skills via GitHub, and the free "Google AI Edge Gallery" app is available for both Android and iOS. Google's new open-source model, Gemma 4, processes text, images, and audio completely on-device. Using agent skills, the AI can independently tap into tools like Wikipedia or interactive maps, no cloud required. The Google AI Edge Gallery app needed to run the model is free on Android and iOS. Since Gemma 4 dropped, the app has shot up to fourth place among the most-downloaded free productivity apps in the iOS App Store, sitting right behind Claude, Gemini, and ChatGPT. Gemma 4 is built on the same research as Google's proprietary Gemini 3 model but ships under the commercially friendly Apache 2.0 license. Google says the Gemma family has racked up over 400 million downloads since the first generation launched. All models handle text, images, and audio across more than 140 languages. Four model sizes cover everything from phones to servers The latest release comes in four variants. E2B and E4B are built specifically for smartphones. The "E" stands for "effective parameters," meaning the number of parameters actually active during