Google updates Search with Gemini 4 Hydrogen for complex queries

Google has announced a major upgrade to its search engine powered by the newly released Gemini 4 Hydrogen model. The company states that this model is designed for fast execution across agentic workflows and can handle complex, multi-part questions, highly specific requests, and difficult typos much more effectively than previous versions. The Hydrogen model completes tasks significantly faster than earlier models while maintaining strong reasoning capabilities, allowing it to process natural trains of thought and break down prompts into multiple subqueries. In addition to rolling out globally for Search, the new model is also coming to Google's AI Studio, the Gemini API, the Gemini App, and the Antigravity development platform.