An AI citation is the mention of a business, establishment or source in an AI assistant's answer. It takes two forms: the recommendation ("I'd suggest Le Café d'Ithaque, a Mediterranean brasserie in the 7th…") and the source citation, when the assistant displays a link to the website the information came from. It is the central indicator of AI search optimization — the equivalent of a Google position in classic SEO: you don't "rank" in ChatGPT, you get cited, or you don't.
Where do citations come from? AIs cross several sources: their training memory (what they read on the web months earlier), live search (many assistants query the web at question time, via their crawlers), local data such as Google Maps and its reviews, and external mentions — press, directories, "best places in…" lists. Studies converge on one point: Google position remains the strongest predictor of citation (×3.5 between first position and the rest, AirOps 2026), followed by the factual precision of the site and the consistency of information across the web.
How is it measured? As simply as it sounds: by regularly asking the assistants the questions your customers ask — "a good Mediterranean restaurant in the 7th?", "who builds websites for shops in Paris?" — and recording who gets cited, how, and with which details. In parallel, you watch AI referral traffic in your site analytics (visits from chatgpt.com or perplexity.ai are identifiable), while remembering that a spoken or read recommendation does not always produce a click: citations influence before they measure.
Last point, the most important one: a citation is earned and maintained. AIs sometimes get things wrong — old hours, a previous address, an outdated menu. Monthly monitoring catches those errors so they can be fixed at the source (site, Google profile, directories). It is the "citation monitoring" step of my AI search method: verify, adjust, improve — and watch your business enter the answers.
Common mistakes
- Confusing it with a link : an AI citation is a mention inside the answer, not necessarily a click. It's measured differently from a Google ranking.
- Measuring nothing : without regularly asking ChatGPT, Perplexity or Gemini your key queries, you have no idea whether you're cited.
- Relying on a single AI : each assistant has its own sources; being cited by Perplexity doesn't guarantee being cited by ChatGPT.