The accounting figures are from the SA AI Visibility Index, Edition 1 (July 2026, restated 3 September 2026): 36 buyer questions put to ChatGPT, Claude, Gemini and Perplexity through their APIs, three runs each, 432 answers. The 5 of 8 (the crawlers OpenAI, Anthropic and Perplexity name), 35 of 58 and 39 of 56 figures are from full reads in September 2026, names withheld.
OpenAI’s, Anthropic’s and Perplexity’s crawlers don’t execute JavaScript; generative engines reward statistics, cited sources and expert quotes — levers Princeton measured at +33% / +43% / +115%. Roughly 48% of Google searches now surface an AI Overview, where organic click-through runs at 2.36% against 3.82% without one.
“GEO can boost visibility by up to 40% in generative engine responses.” — Aggarwal et al., “GEO: Generative Engine Optimization” · Princeton · KDD 2024