AI Models & Launches — May 15, 2026

This Friday, May 15th, the AI landscape sees significant new model launches and intriguing developments. Both SMBtech and 디지털투데이 confirm Google DeepMind has released Gemma 4, an open-source AI model family designed for advanced reasoning. Google calls it their "most capable" open-source AI, with models ranging from 2B to 31B parameters, built on the same research as their proprietary Gemini 3. SMBtech reports developers have downloaded Gemma family models over 400 million times, with Gemma 4 ou