Google Search Goes Conversational as AI Mode Merges with AI Overviews

Google Blurs the Line Between Search and Chat

Google has fundamentally changed how its search engine works by connecting AI Overviews directly to AI Mode, creating a seamless path from quick summaries to full conversations. The update, confirmed during Alphabet's fourth-quarter 2025 earnings call on the fourth of February 2026, means users can now ask follow-up questions straight from AI-generated summaries without starting a new search.

Gemini 3 Takes the Wheel

The company has upgraded AI Overviews globally to run on Gemini 3, replacing the previous Gemini 2.5 models. The system uses intelligent routing, sending simple queries to Gemini 3 Flash and complex questions to Gemini 3 Pro for deeper reasoning. Users on mobile worldwide can now tap through from an AI Overview into a full conversational experience.

Users Are Searching Differently

The numbers tell a striking story. Daily AI Mode queries per user in the United States have doubled since launch. Conversations in AI Mode run roughly three times longer than traditional searches, and nearly one in six queries now use non-text inputs like voice or images. The Gemini app itself reached 750 million monthly active users by the end of the quarter, while AI Overviews now serve more than two billion users globally each month.

Record Revenue and Massive Investment

Alphabet reported fourth-quarter revenue of 113.8 billion dollars, up 18 percent year over year, with Google Search revenue growing 17 percent. CEO Sundar Pichai called it an expansionary moment for Search, noting that the company shipped more than 250 product launches within AI Mode and AI Overviews during the quarter. Looking ahead, Alphabet plans to spend between 175 billion and 185 billion dollars on capital expenditure in 2026, potentially doubling its 2025 spending to meet surging demand for AI compute capacity.