Google's AI Overviews are significantly changing search in 2025 by providing AI-driven summaries to user queries, helping users understand topics and find relevant web content quickly. Since May 2025, AI Overviews have been available in over 200 countries and more than 40 languages.
AI Overviews are powered by a custom version of Gemini 2.5, delivering faster, higher-quality responses. Google is also rolling out AI Mode, offering advanced reasoning and multimodal capabilities, including a "query fan-out" technique for comprehensive results. AI Mode is now available to all Google Search users in the US.
Ads are now integrated into AI Overviews and AI Mode, creating new opportunities for advertisers. These advancements mark a significant evolution in how people interact with online information, with AI Overviews reportedly driving a 10% increase in usage for queries that trigger them.