Google Search upgrades with new Gemini 4 Hydrogen model

Google Search is rolling out improvements powered by its new Gemini 4 Hydrogen model, which the company calls its biggest model upgrade to Search yet. Hydrogen is designed for fast execution rather than deep reasoning, completing tasks 2.5 times faster than its predecessor Gemini 3.8 Flash. In Search, it better understands complicated, multi-part, or typo-filled questions, improves the fan-out technique that breaks queries into subqueries, and delivers more visual responses including images and comparison tables. Hydrogen is also coming to Google AI Studio, the Gemini API, the Gemini App, and paid AI Pro and Ultra subscribers.