Gyms in Berlin that AI assistants recommend
We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for gyms in Berlin, three times each, in German, and counted who they named. These are the businesses named in two or more of the 48 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 48
- Businesses named
- 13
- Named only once
- 2
- Named by 2+ assistants
- 10 of 11
- Named again on a rerun
- 74%
Edition September 2026. Download the data
Asked for gyms in Berlin, ChatGPT, Claude, Gemini and Grok most often named John Reed Fitness (83% of answers), Holmes Place (71%) and Fitness First (58%). Across 48 answers they named 13 different businesses, 2 of them only once. Each of four buyer questions was asked three times, in German, in September 2026.
The ranking
Share is the fraction of the 48 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.
| # | Business | Share | ChatGPT | Claude | Gemini | Grok | Questions | Avg. position |
|---|---|---|---|---|---|---|---|---|
| 1 | John Reed FitnessAlso written John Reed Fitness Berlin, John Reed Fitness Berlin Bötzowstraße, John Reed Fitness Berlin Prenzlauer Berg, John Reed Fitness Berlin – Prenzlauer Berg, John Reed Berlin Bötzowstraße, John Reed Fitness Berlin – Schlesisches Tor | 95%: 70 to 91% | 75% | 83% | 100% | 75% | 4 of 4 | 2.4 |
| 2 | Holmes PlaceAlso written Holmes Place Berlin Ostkreuz, Holmes Place Berlin | 95%: 57 to 82% | 92% | 100% | 83% | 8% | 4 of 4 | 1.8 |
| 3 | Fitness FirstAlso written Fitness First Berlin – Gendarmenmarkt, Fitness First Berlin, Fitness First Berlin - Gendarmenmarkt, Fitness First Berlin – Bismarckstraße, Fitness First Berlin – Bötzowstraße, Fitness First Berlin – Steglitz | 95%: 44 to 71% | 100% | 100% | 0% | 33% | 4 of 4 | 2 |
| 4 | McFITAlso written McFit, McFIT Berlin, McFIT Berlin – Landsberger Allee, McFIT Berlin – Tempelhof, McFIT Berlin Alexanderplatz | 95%: 38 to 66% | 17% | 33% | 100% | 58% | 4 of 4 | 2.3 |
| 5 | SuperFitAlso written SuperFit Berlin, SuperFit Berlin – Prenzlauer Berg, Superfit, SuperFit Berlin Steglitz, SuperFit Berlin Wilmersdorf, SuperFit Berlin – Alexanderplatz | 95%: 36 to 64% | 75% | 50% | 67% | 8% | 4 of 4 | 4.1 |
| 6 | FitXAlso written FitX Berlin, FitX Berlin Alexanderplatz | 95%: 33 to 60% | 33% | 17% | 83% | 50% | 4 of 4 | 3.3 |
| 7 | ELIXIAAlso written Elixia, ELIXIA Berlin, ELIXIA Vitalclub Berlin | 95%: 5 to 22% | 8% | 8% | 25% | 0% | 2 of 4 | 4.6 |
| 8 | Urban Sports Club | 95%: 5 to 22% | 0% | 0% | 42% | 0% | 2 of 4 | 5.2 |
| 9 | Clever FitAlso written Clever Fit Berlin | 95%: 2 to 17% | 8% | 0% | 17% | 0% | 1 of 4 | 4 |
| 10 | AspriaAlso written Aspria Berlin, Aspria Berlin Ku'damm | 95%: 2 to 17% | 0% | 0% | 17% | 8% | 2 of 4 | 4.3 |
| 11 | Bodystreet Berlin | 95%: 2 to 17% | 8% | 17% | 0% | 0% | 1 of 4 | 4.7 |
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. 2 more names came up in a single answer and are counted above but not listed.
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.
| # | ChatGPT | Claude | Gemini | Grok |
|---|---|---|---|---|
| 1 | Fitness First100% | Holmes Place100% | John Reed Fitness100% | John Reed Fitness75% |
| 2 | Holmes Place92% | Fitness First100% | McFIT100% | McFIT58% |
| 3 | John Reed Fitness75% | John Reed Fitness83% | Holmes Place83% | FitX50% |
| 4 | SuperFit75% | SuperFit50% | FitX83% | Fitness First33% |
| 5 | FitX33% | McFIT33% | SuperFit67% | Holmes Place8% |
Grok named no business in 3 of its 12 answers.
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.
<a href="https://aigrow.gg/index/gyms/berlin"><img src="https://aigrow.gg/badges/index/2026-09/gyms/berlin.svg" width="312" height="100" alt="Named by AI assistants: Gyms in Berlin, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant through its API, 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.
- 1Welches ist das beste Fitnessstudio in Berlin?What is the best gym in Berlin?
- 2Ich möchte mich in Berlin in einem Fitnessstudio anmelden. Welche empfiehlst du?I want to join a gym in Berlin. Which ones would you recommend?
- 3Welches Fitnessstudio in Berlin ist gut für Anfänger?Which gym in Berlin is good for beginners?
- 4Wo gibt es in Berlin ein Fitnessstudio mit guten Gruppenkursen?Where can I find a gym in Berlin with good group classes?
How to read this page
- 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
- 48 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.
Elsewhere in the Index
- Also in Berlin
- DentistsLawyersAccountantsPlumbersReal estate agencies
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.
Edition September 2026 · data under CC BY 4.0