Gyms in Zurich that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for gyms in Zurich, three times each, in German, and counted who they named. These are the businesses named in two or more of the 36 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 36
- Businesses named
- 18
- Named only once
- 8
- Named by 2+ assistants
- 7 of 10
- Named again on a rerun
- 73%
Edition September 2026. Download the data
Asked for gyms in Zurich, ChatGPT, Claude and Gemini most often named ACTIV FITNESS (100% of answers), Holmes Place (78%) and PureGym (69%). Across 36 answers they named 18 different businesses, 8 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.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position |
|---|---|---|---|---|---|---|---|
| 1 | ACTIV FITNESSAlso written Activ Fitness, ACTIV FITNESS Zürich, Activ Fitness Zürich, ACTIV FITNESS Zürich Stauffacher, Activ Fitness Stauffacher, ACTIV FITNESS StauffacherIs this your business? | 95%: 90 to 100% | 100% | 100% | 100% | 4 of 4 | 1.6 |
| 2 | Holmes PlaceAlso written Holmes Place Zürich, Holmes Place Zürich City, Holmes Place Zürich City Jelmoli, Holmes Place Zürich Crowne PlazaIs this your business? | 95%: 62 to 88% | 75% | 75% | 83% | 4 of 4 | 2.9 |
| 3 | PureGymAlso written PureGym Zürich, PureGym Zürich EuropaalleeIs this your business? | 95%: 53 to 82% | 67% | 42% | 100% | 4 of 4 | 2.7 |
| 4 | FitnessparkAlso written Migros Fitnesspark, Fitnesspark Zürich, Migros Fitnesspark Stockerhof, Migros Fitnesspark Puls 5Is this your business? | 95%: 32 to 63% | 17% | 50% | 75% | 4 of 4 | 3.1 |
| 5 | update FitnessAlso written update Fitness Zürich, Update Fitness, update Fitness Zürich Oerlikon, update Fitness Zürich SihlcityIs this your business? | 95%: 30 to 60% | 100% | 25% | 8% | 4 of 4 | 2.6 |
| 6 | Indigo Fitness ClubAlso written Indigo Fitness, Indigo Fitness Club ZürichIs this your business? | 95%: 25 to 55% | 0% | 50% | 67% | 3 of 4 | 3.7 |
| 7 | BalboaIs this your business? | 95%: 10 to 35% | 0% | 58% | 0% | 3 of 4 | 4.4 |
| 8 | David GymAlso written David Gym Zürich, David Gym 47Is this your business? | 95%: 4 to 25% | 0% | 33% | 0% | 2 of 4 | 3.5 |
| 9 | NonStop GymAlso written NonStop Gym ZürichIs this your business? | 95%: 4 to 25% | 8% | 25% | 0% | 2 of 4 | 3.8 |
| 10 | Silhouette FitnessAlso written SilhouetteIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 4.3 |
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. 8 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.
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 |
|---|---|---|---|
| 1 | ACTIV FITNESS100% | ACTIV FITNESS100% | ACTIV FITNESS100% |
| 2 | update Fitness100% | Holmes Place75% | PureGym100% |
| 3 | Holmes Place75% | Balboa58% | Holmes Place83% |
| 4 | PureGym67% | Fitnesspark50% | Fitnesspark75% |
| 5 | Fitnesspark17% | Indigo Fitness Club50% | Indigo Fitness 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.
<a href="https://aigrow.gg/index/gyms/zurich"><img src="https://aigrow.gg/badges/index/2026-09/gyms/zurich.svg" width="312" height="100" alt="Named by AI assistants: Gyms in Zurich, 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.
- 1Welches ist das beste Fitnesscenter in Zürich?What is the best gym in Zurich?
- 2Ich möchte mich in Zürich in einem Fitnesscenter anmelden. Welches empfiehlst du?I want to join a gym in Zurich. Which ones would you recommend?
- 3Welches Fitnesscenter in Zürich ist gut für Anfänger?Which gym in Zurich is good for beginners?
- 4Wo gibt es in Zürich ein Fitnesscenter mit guten Gruppenkursen?Where can I find a gym in Zurich 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
- 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 Switzerland. From the AI Source Map: 7 answers.
- reddit.com
- Read in 86% of the answers
- activfitness.ch
- Read in 71% of the answers
- vyvo.ch
- Read in 71% of the answers
Elsewhere in the Index
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 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0