Cost-Per-Answer
An entry in The GEO Lexicon, published by 5W.
A pricing metric for AI advertising that charges advertisers each time a sponsored response is surfaced to a user. Cost-per-answer is the generative analog to cost-per-click in traditional search, tying spend to answer delivery rather than link taps.
Cost-Per-Answer sits inside the AI Advertising & Sponsored Answers vocabulary. As AI engines formalize their advertising products, cost-per-answer is emerging as the most intuitive billing unit — one sponsored response delivered equals one billable event, regardless of whether the user clicks anywhere.
Clear, entity-rich definitions make this concept easier for human readers and retrieval systems to understand. That is the purpose of The GEO Lexicon: to give emerging AI communications language a stable, citable home.
Why It Matters
Cost-per-answer resets how media buyers evaluate AI advertising efficiency. Without clicks as the success metric, brands need new frameworks for measuring influence — including follow-up query rates, brand recall lift, and downstream conversion attribution.
Cost-Per-Answer FAQ
What is Cost-Per-Answer?
A pricing metric for AI advertising that charges advertisers each time a sponsored response is surfaced to a user. Cost-per-answer is the generative analog to cost-per-click in traditional search, tying spend to answer delivery rather than link taps.
Why does Cost-Per-Answer matter?
Cost-per-answer resets media buying math. Brands that develop new efficiency benchmarks for this unit early will be better positioned when AI advertising inventory scales.
Related Terms
Answer Auction | Visibility ROI | Citation Share | First-Position Citation Rate | Answer-Engine Monetization
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