We ran the same query, "best CRM for a 50-person remote team," through ChatGPT, Claude, Gemini, Perplexity, and Grok, three times each, every day for ninety days. For context on how AI engines differ in how they cite brands, see our ChatGPT vs Perplexity vs Gemini comparison.
Across the runs, no single brand made every top-three list. A handful of incumbents dominated, but the order shifted constantly. We saw a similar pattern in our broader research on which brands dominate AI answers and why.
The criteria the models cited also shifted over time. The dominant ranking criterion changed week to week: "ease of use," then "AI features," then specific integrations. The underlying products barely moved. Our scoring rubric explainer breaks down how we measure these shifts systematically.
AI visibility differs from SEO here: the answer changes when the model's framing changes, not only when your content does. You can do everything right and still drop because the model decided the question is now about something else. The metric that matters is AI Visibility, not branded search volume. Pondral's complete guide to AI visibility covers how to measure and improve it.