In Citevio's engine panel measurement on 11 August 2026, Perplexity named a practice or agency 4 times and ChatGPT did so 2 times across 16 buyer-intent agency-selection questions, not patient-facing dental questions. Both gave no name for most of the set. Google AI Overviews results are not published here, and Gemini was not measured because of quota errors.
AI answers should be checked engine by engine and question by question. This page reports a narrow agency-selection measurement, not a measurement of patient-facing dental recommendations.
What did we ask, and what did each engine do?
In Citevio's engine panel measurement on 11 August 2026, we ran 16 buyer-intent agency-selection questions, not patient-facing dental questions, against four engines in one measurement window. For each answer we recorded whether a business or agency was named directly, whether it appeared only as a cited source, or whether the engine gave no relevant name.
| Engine | Named by name | Cited as source only | No relevant name |
|---|---|---|---|
| ChatGPT | 2 | 0 | 14 |
| Perplexity | 4 | 1 | 11 |
| Google AI Overviews | Not published; see below | ||
| Gemini | Not measured: quota error on all 16 questions | ||
In Citevio's engine panel measurement on 11 August 2026, Perplexity produced more named mentions than ChatGPT on the same 16 buyer-intent agency-selection questions (4 versus 2). Neither engine answered with a name on most questions. That does not establish a trend.
We also ran the same questions against Google AI Overviews, but Citevio does not publish AI Overviews measurement results yet; that column is held back until the measurement is repeated.
This is one measurement window, not a trend. The completed run-consistency measurement explains why repeated checks matter. Until a pattern repeats across two runs, treat this table as a snapshot, not a rule.
Is Perplexity easier to win than ChatGPT?
No conclusion follows from this measurement. Perplexity named a business more often than ChatGPT did in one measurement window. That is not the same as being easier to win, and Citevio has not tested which engine is easier.
The engines are not interchangeable in this measurement. The useful unit is engine by engine and question by question, with the scope stated clearly: buyer-intent agency-selection questions, not patient-facing dental questions.
Why do two engines disagree about the same practice?
Citevio's panel measures the outcome, whether a name appears, not the mechanism behind it. We did not test why ChatGPT and Perplexity diverge on identical questions, so we are not claiming a cause here.
No major AI crawler runs JavaScript. GPTBot, OAI-SearchBot, ClaudeBot and PerplexityBot read the raw HTML only, so a page whose content is drawn by JavaScript can rank on Google and still be blank to ChatGPT. Google Gemini is the exception, because it uses Google's rendering service.
Google documents that AI Overviews use Google Search eligibility requirements, while OpenAI and Perplexity document search-backed answers with cited sources. These documented mechanisms explain why source retrieval matters, but they do not establish the cause of the differences in this measurement.
What can this measurement not tell you?
Citevio's engine panel measurement on 11 August 2026 was run on buyer-intent agency-selection questions, not patient-facing dental questions. The two question types are not interchangeable, and Citevio has not measured whether the same pattern holds for patient queries. The 4-versus-2 gap could change in another measurement window; this page makes no forecast or timeline.
Which questions are commonly asked about engine agreement?
Do ChatGPT and Perplexity give the same agency-selection answer?
Not reliably. In Citevio's engine panel measurement on 11 August 2026, Perplexity named a practice or agency 4 times and ChatGPT did so 2 times across one window of 16 buyer-intent agency-selection questions, not patient-facing dental questions. Both engines gave no name for most questions.
Is Perplexity easier to get recommended by than ChatGPT?
In Citevio's engine panel measurement on 11 August 2026, Perplexity named a business more often than ChatGPT did in one window (4 versus 2 of 16 buyer-intent agency-selection questions, not patient-facing dental questions), but that is not the same as being easier to win. Citevio has not tested which engine is easier.
Why do AI engines give different answers to the same question?
Citevio's panel measures the outcome, not the cause. Different engines can use different retrieval and ranking processes, but this measurement was not designed to isolate why their answers differed.
Did this measurement include Google AI Overviews and Gemini?
Both were part of Citevio's engine panel measurement on 11 August 2026, but neither produced a publishable result. Citevio does not publish Google AI Overviews measurement results yet, and the Gemini column returned a quota error on all 16 buyer-intent agency-selection questions, so that column is a measurement gap, not a result.
Citevio's dental market research is published openly under CC-BY-4.0 with a DOI, so the numbers can be checked and reused; client data is never published.
Sources: OpenAI, ChatGPT search; Perplexity, What is Perplexity?; Google Search Central, AI features and your website; Citevio open dataset, Zenodo DOI 10.5281/zenodo.21833256; Citevio engine panel measurement, 11 August 2026 (own data, methodology: how we measure AI visibility).
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