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)

