Google Search gets a major upgrade with Gemini 4 Hydrogen
Google announced that Gemini 4 Hydrogen, described as the biggest model upgrade to Search yet, is now available globally in Google Search for all users. The company says it improves understanding of intent for nuanced multi-part questions and typos, strengthens query fan-out and linking to surface more helpful sites, and delivers more visual responses such as images, comparison tables and custom tools, with richer language understanding across supported AI Mode languages.
Why it matters: Useful for readers tracking how Google is integrating its Gemini models into core Search features and what changes users can expect.