Key findings

A summary of what Evertune's research has found about AI model behavior, shopping and source citations as of July 2026.

  • ChatGPT shows an ad in 1 of 8 responses (July 2026)
  • 50% of ChatGPT citations are listicles, and 58% of those are ranked lists, based on analysis of 40,000+ heavily cited URLs across nearly 50 product categories (April 2026).
  • The typical ChatGPT-cited page has 941 words, 4 H2s, 2 H3s, 15 external links and 10 images, measured across thousands of cited pages (April, 2026)
  • YouTube's citation share has roughly tripled on Google AI Mode and AI Overview since October 2025, based on ongoing citation tracking.
  • 32% of all AI-cited domains are earned media, ranging from as low as 7% to as high as 87% depending on the topic.
  • GPT-5.4 mini recommends 37% fewer brands than GPT-5 mini, based on ~220,000 prompts across 9 product categories (March, 2026).
  • ChatGPT draws on training data 62% of the time and Gemini 54%, running live web searches the rest of the time (September, 2025).
  • Shopping experiences appear in 87% of ChatGPT responses to product questions, up from 20% in October 2025, a fourfold rise in under five months (March, 2026).
  • The same questions generate 838 unique URLs on Perplexity versus 6,687 on Google AI Mode, a nearly 8× difference in source diversity (2026).
  • Reddit accounts for roughly 1 in 5 Perplexity citations, while even Wikipedia, ChatGPT's most-cited domain, tops out at about 5% (2026).

AI usage: monthly active users by model

Aggregated from across the web.

  • AI Overviews — 2.5 billion (June 2026)
  • AI Mode — 1 billion (June 2026)
  • ChatGPT — 1 billion (May 2026)
  • Gemini — 900 million (May 2026)
  • Claude — 56 million (Q2 2026)