How big is AI search?

Figure 1: The official user counts side by side, with what each one measures. Monthly and weekly counts are not the same thing, and one person can sit in all four. Source: Google, I/O 2026 keynote, May 2026 (AI Overviews 2.5B+ monthly); Alphabet, Q2 2026 earnings remarks, Jul 2026 (AI Mode 1B+ monthly); Google, Gemini app one billion monthly users, Aug 2026 (Gemini app 1B+ monthly); OpenAI, DevDay 2026 Recap, Sep 2026 (ChatGPT 1.2B weekly); Pew Research Center, Americans and AI 2026, Jun 2026 (49% of US adults). Graphic by Rank Local from those sources.

How big is AI search: AI Overviews 2.5B+ monthly users, AI Mode 1B+ monthly users, Gemini app 1B+ monthly users, ChatGPT 1.2B weekly users, and 49% of US adults use an AI chatbot (Pew)