Show HN: Gemma Gem – AI model embedded in a browser – no API keys, no cloud

Show HN: Gemma Gem – AI model embedded in a browser – no API keys, no cloud Gemma Gem is a Chrome extension that loads Google's Gemma 4 (2B) through WebGPU in an offscreen document and gives it tools to interact with any webpage: read content, take screenshots, click elements, type text, scroll, and run JavaScript. Infrastructure updates matter because AI momentum depends on who can actually train and serve models at scale.