Gangnam Dermatology GEO Index
Categories
14
Items measured
29
Prompt pool
1,740
Measured calls
62.6K
Brands cited
14,950
Measurement Notice
This data is measured and aggregated from the responses of 6 LLMs — ChatGPT, Claude, Gemini, Perplexity, Grok, and Google AI Overview. It does not evaluate, rank, or endorse the actual quality or capability of the companies, institutions, or brands measured. It is an observational record of information visibility in the AI era.
Overall Citation Ranking TOP 10
Combined citation share across 6 LLMs, every item, and every segment. Some brand names are masked.
01
오*클피부과 강남점
7.2%
11.2
02
톡*앤필
5.8%
9.1
03
오*클피부과
5.7%
7.7
04
톡*앤필 강남본점
5.5%
4.6
05
유*아이의원
3.7%
6.0
06
뮤*의원
3.2%
6.7
07
미*미 강남본점
3.2%
6.1
08
아*디병원
3.1%
2.2
09
리*리의원 강남점
2.8%
5.2
10
원*성형외과
2.6%
4.1
Measured 2026-05 · 62.6K calls combined · Citation share = brand's share of all citations
Top Brand by Segment
Even for the same question, the brands LLMs cite shift with the asker's profile (age and gender).
20s
30s
40s
50s
60+
Male
Female
Each cell shows the most-cited brand for that segment — the darker the cell, the higher the citation rate. Click a cell to switch the ranking below to that segment.
Try clicking a cell in the heatmap above.
Most-Cited Brand by LLM
Compare which brand each of the 6 LLMs cited most often.
ChatGPT
오*클피부과 강남점
13.4%
Claude
J*성형외과
12.0%
Gemini
톡*앤필
25.9%
Perplexity
미*미 강남본점
16.7%
Grok
오*클피부과 강남점
29.7%
Google AI Overview
톡*앤필 강남본점
8.9%
Each cell shows the brand each LLM cites most under the selected conditions. Change the filters to see how each LLM's top pick shifts.
INDEX by Item
View rankings, segments, and LLM distribution for each item on its own.
Injections
Pigmentation
Botulinum Toxin
Skin Regeneration
Laser
Lifting
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