ModelGemini

Google Search gets Gemini 4 Hydrogen

Original title: Google Search gets a major upgrade with Gemini 4 Hydrogen

Plain language

What it is: Google has upgraded its search engine by integrating a new model called Gemini 4 Hydrogen. This update is designed to make search results more helpful, visual, and intuitive.
How it works: The system better understands complex questions with multiple parts or typos. It searches for multiple related subtopics at the same time and presents information using images, comparison tables, and custom tools.
Where it is available: The update is available globally to all users on Google Search, supporting all languages currently available in Google's AI models.
Example: You can ask about specific requirements for travel, shopping, or hobbies using your natural flow of thought.

What it is: Google has integrated the Gemini 4 Hydrogen model into Google Search to improve query understanding and response generation.
How it works: The model uses advanced reasoning to perform query fan-out, executing simultaneous queries across subtopics. It also features deeper instruction following, tool calling, and structured output generation to produce comparison tables, images, and custom tools.
Where it is available: This model upgrade is deployed globally within Google Search and is active across all currently supported AI Mode languages.
Example: A user can submit a complex, multi-part query with typos, and the system will use tool calling and query fan-out to return structured tables and relevant links.

The headline and explanation on this page are based on Google's post. The full details are in the original.

Google Search gets a major upgrade with Gemini 4 Hydrogen