If your organic clicks are falling, the missing layer may be the answer page that now appears before your link. GEO and AEO measure whether ChatGPT, Perplexity, Gemini, Claude, and AI Overviews cite your site, and whether their answers support or weaken your position. Traditional SEO asks whether a page can be found, ranked, and clicked. Generative search adds a different question: when a user asks for an answer, does the system select your page as a source?
A citation is not the same as a ranking. An AI answer can mention your brand without linking to your site, link to a competitor, summarize your offer inaccurately, or omit your page entirely. For a founder or marketing leader, the practical issue is not whether the technology is interesting. It is whether potential customers are forming their opinion from an answer that includes your company.
GEO, or generative engine optimization, focuses on being selected and represented by AI systems. AEO, or answer engine optimization, focuses on making the answer useful, clear, and easy to reuse. Both depend partly on familiar SEO signals such as content quality, authority, structure, and technical accessibility. They also depend on how well your claims match the wording and intent of natural-language questions.
A meaningful check should use the same query across several AI answer surfaces. In the ZenRadar survey, the five surfaces were ChatGPT, Perplexity, Claude, Gemini, and AI Overviews. They do not behave identically, so one result cannot stand in for all of them.
For each run, record the query, timestamp, locale, market, full answer, cited URLs, competitor mentions, and important omissions. A citation may be positive, neutral, or based on a claim that your own page does not support. A page can also be cited for a feature that is no longer available. This is why a screenshot is not enough. Two answers can look similar while sending users to different pages. A repeatable log makes it possible to compare changes over time and to connect a change in citations with a content update, a product change, or a competitor campaign.
The public entry prices in the ZenRadar survey illustrate the difference between a dedicated GEO product and a module added to an existing SEO suite. Otterly.ai was listed from $29 per month, ZenRadar from 49 to 199 euros, and Meteoria from 75 euros. SE Ranking AI Monitoring was listed at 79 euros, Ahrefs Brand Radar at 119 euros, and Semrush AI Toolkit at $139.95. The module prices are additional to the main SEO subscription.
Those numbers are a snapshot, not a permanent quote. The important question is what the price buys. Four factors usually matter most:
Currency also matters. A dollar price and an euro price should be compared after conversion, and a module should be evaluated together with the subscription it requires.
A free scan can answer a narrow question at one moment. It may tell you what one engine said about one query at the time you clicked the button. It cannot, by itself, show whether the answer changes tomorrow, after a content update, or when a competitor publishes a new comparison page.
Continuous monitoring finances repetition. A provider that checks several surfaces daily must pay for repeated live requests and store the resulting evidence. If a free offer claims to monitor many queries, languages, and engines without charge, ask which limits are hidden: number of surfaces, number of queries, frequency, retention, or historical reporting.
Suppose your company sells project-management software to small agencies. Test the query best project management tool for a 20-person services company in all five surfaces, using the same English locale and the same day. Run it once a week for four weeks, then repeat it after publishing an updated comparison page.
A useful result might look like this:
| Surface | Citation | What the answer emphasizes |
|---|---|---|
| ChatGPT | Your page cited | Ease of setup and agency pricing |
| Perplexity | Competitor cited | Integrations and reporting |
| Claude | No citation | General selection criteria |
| Gemini | Your page cited | Security and team permissions |
| AI Overview | Partial citation | Shortlist with mixed claims |
This pattern does not prove that one surface is more important than another. It shows where your message is present, where it is absent, and where the answer may send a buyer elsewhere. The next step is to improve the underlying page, clarify the claim, or address a missing comparison rather than changing headings in isolation.
If you already pay for a broad SEO suite, an added GEO module may be economical because it uses an existing subscription. If your main need is AI visibility, a dedicated tool can avoid paying for features you do not use. Compare the number of surfaces, monitoring frequency, tracked queries, markets, history, and exportable evidence before choosing.
Source: [https://zenradar.organizen.ai/articles/combien-coute-un-outil-de-geo](https://zenradar.organizen.ai/articles/combien-coute-un-outil-de-geo)