Google Search Uses Gemini 4 for Complex Questions
3 min
Google is making Gemini 4 Hydrogen the default model for Search's AI Mode worldwide, aiming to answer layered, conversational questions in one pass without keyword workarounds. Gemini 4 Hydrogen is now the default engine for Google Search's AI Mode worldwide and also handles the hardest queries in AI Overviews.Google expanded query fan-out, which splits complex prompts into subtopics and runs simultaneous background searches to build a single answer.Google says Gemini 4 Hydrogen runs 2.5 times faster than Gemini 3.8 Flash and reduces fabricated claims more than fivefold.Chapters:00:00 Introduction00:42 Understanding Natural Thought Over Keywords01:43 Behind the Scenes of Query Fan-Out02:34 Structured Visuals Replace Walls of Text Read the full story on Blockrora: https://blockrora.com/technology/google-search-gemini-4-hydrogen-ai-mode/ Narrated by an AI voice from the published story.