The AI Visibility Index

The AI Visibility Index is a periodic measurement of which brands AI assistants actually name and recommend, by category. It is sampled on a fixed suite of non-branded buyer questions across ChatGPT, Claude, Gemini and Perplexity, repeated for statistical confidence. Every number here has a confidence interval and a measured run behind it.

Share of answers naming each brand — not market share, not sentiment
95% confidence intervals on every figure; overlapping ranks are marked as ties
Run id, sample size and engine list published with each category

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How to read this. Share is the proportion of answers naming that brand when a buyer asks a category question — not a market share, not a sentiment score. The bracket after each figure is the 95% confidence interval: where two brands' intervals overlap we mark them tied rather than ranking through noise, because a rank we can't defend is worse than no rank. Prompts are non-branded buyer questions, so a brand can only appear when an engine volunteers it. Full method: our published methodology.

Want this for your own brand and category? Start with a free page check, or see whether AI crawlers can reach your site at all.