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AI Visibility Index · September 2026

Gyms in Cologne that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for gyms in Cologne, three times each, in German, and counted who they named. These are the businesses named in two or more of the 36 answers.

Check whether AI names youSee the ranking

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Gyms · Cologne
100%of answers named Just Fit
Answers
36
Businesses named
20
Named only once
5
Named by 2+ assistants
8 of 15
Named again on a rerun
70%

Edition September 2026. Download the data

Asked for gyms in Cologne, ChatGPT, Claude and Gemini most often named Just Fit (100% of answers), Holmes Place (86%) and McFIT (67%). Across 36 answers they named 20 different businesses, 5 of them only once. Each of four buyer questions was asked three times, in German, in September 2026.

The ranking

The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Gyms in Cologne named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1Just FitAlso written Just Fit 03 Classic Köln, Just Fit 03 Classic Köln-Mediapark, Just Fit 13 Premium Köln, Just Fit 12 Premium Köln, Just Fit Köln, Just Fit 03 Classic Köln-DeutzIs this your business?100%95%: 90 to 100%100%100%100%4 of 41.9
2Holmes PlaceAlso written Holmes Place Köln Am Gürzenich, Holmes Place Köln am Gürzenich, Holmes Place KölnIs this your business?86%95%: 71 to 94%58%100%100%4 of 41.8
3McFITAlso written McFIT Köln-Ehrenfeld, McFIT Köln, McFIT Köln-Mülheim, McFIT Köln-BayenthalIs this your business?67%95%: 50 to 80%58%67%75%4 of 43.7
4Fitness FirstAlso written Fitness First Köln Schildergasse, Fitness First Köln, Fitness First Köln - Schildergasse, Fitness First Köln – Schildergasse, Fitness First Köln – Am Kaiser-Wilhelm-Ring, Fitness First Köln – Am MediaparkIs this your business?58%95%: 42 to 73%75%100%0%4 of 42.1
5FitXAlso written FitX KölnIs this your business?28%95%: 16 to 44%17%0%67%3 of 43.5
6Urban Sports ClubIs this your business?22%95%: 12 to 38%0%0%67%3 of 44.3
7XTRAFITAlso written XTRAFIT Köln, XTRAFIT Köln-EhrenfeldIs this your business?19%95%: 10 to 35%50%8%0%3 of 43.9
8clever fitAlso written Clever Fit Köln, clever fit Köln-Sülz, cleverly fit KölnIs this your business?11%95%: 4 to 25%33%0%0%3 of 43.8
9Neptunbad Sports & SpaIs this your business?11%95%: 4 to 25%0%33%0%2 of 44.3
10Kader 1Is this your business?11%95%: 4 to 25%0%33%0%3 of 45.3
11JOHN REED FitnessAlso written John Reed Fitness, John Reed Fitness Köln SchildergasseIs this your business?8%95%: 3 to 22%8%0%17%3 of 43.7
12Mrs.SportyIs this your business?8%95%: 3 to 22%0%0%25%1 of 44
13AgrippaFitAlso written AgrippafitIs this your business?8%95%: 3 to 22%0%25%0%2 of 45
14KörperformenAlso written Körperformen Köln, Körperformen Köln SüdstadtIs this your business?8%95%: 3 to 22%8%17%0%2 of 45
15Kieser Köln-Neustadt-NordIs this your business?6%95%: 2 to 18%0%17%0%1 of 44.5

Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 5 more names came up in a single answer and are counted above but not listed.

Is this your business?

See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.

Check your businessNamed above? Add the badgeWhat the audit does

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGemini
1Just Fit100%Just Fit100%Just Fit100%
2Fitness First75%Holmes Place100%Holmes Place100%
3Holmes Place58%Fitness First100%McFIT75%
4McFIT58%McFIT67%FitX67%
5XTRAFIT50%Neptunbad Sports & Spa33%Urban Sports Club67%

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing
Named by AI assistants: Gyms in Cologne, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/gyms/cologne"><img src="https://aigrow.gg/badges/index/2026-09/gyms/cologne.svg" width="312" height="100" alt="Named by AI assistants: Gyms in Cologne, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in German. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1Welches ist das beste Fitnessstudio in Köln?What is the best gym in Cologne?
  2. 2Ich möchte mich in Köln in einem Fitnessstudio anmelden. Welche empfiehlst du?I want to join a gym in Cologne. Which ones would you recommend?
  3. 3Welches Fitnessstudio in Köln ist gut für Anfänger?Which gym in Cologne is good for beginners?
  4. 4Wo gibt es in Köln ein Fitnessstudio mit guten Gruppenkursen?Where can I find a gym in Cologne with good group classes?

How to read this page

The full method
What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Where the assistants look

The sites read most often, with web search on, before the assistants answer about this category in Germany. From the AI Source Map: 8 answers.

See every site for this category
reddit.com
Read in 88% of the answers
wikipedia.org
Read in 88% of the answers
fitnessfirst.de
Read in 63% of the answers

Elsewhere in the Index

Gyms elsewhere
BerlinDüsseldorfFrankfurtHamburgMunichStuttgart
Also in Cologne
DentistsLawyersAccountantsPlumbersReal estate agenciesRestaurants

Is your business on this list?

The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.

Run the free AI scanRead the method

Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0