When a dashboard reports that a brand earned 17.3% of AI citations last month, we tend to take it at face value. The number is precise to a tenth of a percent. It came from software. It must be right.

If you are a marketing director or media planner deciding where next year’s content budget goes, you have probably seen a headline this year telling you YouTube is now the most-cited source in AI answers. You may also have seen one saying it is a rounding error. Both were published in 2026. Both…

If you are an operating partner and one of your portfolio companies has just put an AI visibility tool in next year’s budget, you are about to approve a line item in a category where more than 20 vendors sell measurement on more than 20 different methods, and where the trade body that reviewed…

Ask a marketing team how visible their brand is in AI search, and you'll usually get a single number. Sometimes it's called a visibility score. Sometimes it's share of voice. Either way, it's meant to capture how often ChatGPT, Gemini, or Perplexity brings up the brand.

The IAB’s August 3 guidance sorts AI visibility data into three tiers: exploratory, directional, and decision grade. Only the third is fit to move budget. Here is the 12-question scorecard that places your own vendor in about twenty minutes.

The IAB published "Measuring Visibility in the AI Era" on August 3. For the first time, AI visibility measurement has a shared vocabulary, a metrics hierarchy (the 4 P's), and a named line between decision-grade and directional data.