Why a Prompt Index Matters for Brands (and How to Build One)

A Prompt Index is a structured inventory of the questions (prompts) users feed into generative AI tools. For marketers, this is the new “visibility graph” Unlike traditional SEO, prompt behavior is opaque; you can’t see search volume or ranking positions. Building a prompt index helps brands map buyer intent, fix faulty data, and expand their presence in the generative search landscape.