Gyms in Madrid that AI assistants recommend
We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for gyms in Madrid, three times each, in Spanish, 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
- 26
- Named only once
- 7
- Named by 2+ assistants
- 14 of 19
- Named again on a rerun
- 61%
Edition September 2026. Download the data
Asked for gyms in Madrid, ChatGPT, Claude, Gemini and Grok most often named Metropolitan (63% of answers), Basic-Fit (63%) and David Lloyd Aravaca (42%). Across 48 answers they named 26 different businesses, 7 of them only once. Each of four buyer questions was asked three times, in Spanish, 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 | MetropolitanAlso written Metropolitan Iradier, Metropolitan Eurobuilding, Metropolitan Iradier Club, Metropolitan Abascal | 95%: 48 to 75% | 83% | 50% | 25% | 92% | 4 of 4 | 2.2 |
| 2 | Basic-FitAlso written Basic-Fit Madrid, Basic-Fit Madrid Gran Vía | 95%: 48 to 75% | 58% | 50% | 75% | 67% | 4 of 4 | 3 |
| 3 | David Lloyd Aravaca | 95%: 29 to 56% | 67% | 50% | 50% | 0% | 4 of 4 | 2.5 |
| 4 | ForusAlso written Forus Capitán Haya, Forus Madrid, Forus Barceló, Forus Madrid Río | 95%: 29 to 56% | 92% | 75% | 0% | 0% | 4 of 4 | 2.6 |
| 5 | Reebok Sports ClubAlso written Reebok Sports Club Madrid, Reebok Sports Club La Finca | 95%: 27 to 54% | 50% | 33% | 75% | 0% | 3 of 4 | 2 |
| 6 | AltafitAlso written AltaFit Madrid, AltaFit Gym Club Madrid, Altafit Gym Club Madrid, Altafit Madrid | 95%: 20 to 45% | 25% | 50% | 25% | 25% | 4 of 4 | 3.7 |
| 7 | GO fitAlso written GO fit Vallehermoso, Go Fit, Go Fit Madrid, GO fit Madrid, Go Fit Peñagrande, Go Fit Vallehermoso | 95%: 12 to 34% | 25% | 17% | 42% | 0% | 3 of 4 | 3.9 |
| 8 | Holmes PlaceAlso written Holmes Place Palacio de Hielo | 95%: 9 to 30% | 0% | 0% | 50% | 17% | 3 of 4 | 3.3 |
| 9 | DreamfitAlso written Dreamfit Madrid | 95%: 9 to 30% | 0% | 17% | 33% | 17% | 4 of 4 | 3.8 |
| 10 | Club MetropolitanAlso written Club Metropolitan Abascal, Club Metropolitan Eurobuilding | 95%: 7 to 27% | 0% | 0% | 58% | 0% | 3 of 4 | 2.4 |
| 11 | Holiday GymAlso written Holiday Gym Madrid | 95%: 7 to 27% | 17% | 33% | 8% | 0% | 3 of 4 | 3.3 |
| 12 | SynergymAlso written Synergym Madrid | 95%: 5 to 22% | 8% | 8% | 25% | 0% | 1 of 4 | 2.2 |
| 13 | McFITAlso written McFit | 95%: 5 to 22% | 0% | 0% | 42% | 0% | 2 of 4 | 4.2 |
| 14 | Anytime Fitness | 95%: 3 to 20% | 0% | 0% | 0% | 33% | 2 of 4 | 2.3 |
| 15 | Reto 48 | 95%: 3 to 20% | 0% | 0% | 33% | 0% | 2 of 4 | 2.8 |
| 16 | VivaGymAlso written VivaGym Madrid | 95%: 3 to 20% | 0% | 17% | 0% | 17% | 2 of 4 | 3 |
| 17 | Virgin ActiveAlso written Virgin Active Madrid, Virgin Active Madrid Las Rozas | 95%: 2 to 17% | 8% | 8% | 0% | 8% | 2 of 4 | 2.3 |
| 18 | O2 Centro WellnessAlso written O2 Centro Wellness Manuel Becerra | 95%: 2 to 17% | 8% | 0% | 0% | 17% | 2 of 4 | 3.3 |
| 19 | Gymage Lounge Resort | 95%: 1 to 14% | 0% | 0% | 17% | 0% | 1 of 4 | 5.5 |
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. 7 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 | Forus92% | Forus75% | Basic-Fit75% | Metropolitan92% |
| 2 | Metropolitan83% | Metropolitan50% | Reebok Sports Club75% | Basic-Fit67% |
| 3 | David Lloyd Aravaca67% | Basic-Fit50% | Club Metropolitan58% | Anytime Fitness33% |
| 4 | Basic-Fit58% | David Lloyd Aravaca50% | David Lloyd Aravaca50% | Altafit25% |
| 5 | Reebok Sports Club50% | Altafit50% | Holmes Place50% | Holmes Place17% |
Grok named no business in 1 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/madrid"><img src="https://aigrow.gg/badges/index/2026-09/gyms/madrid.svg" width="312" height="100" alt="Named by AI assistants: Gyms in Madrid, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant through its API, in Spanish. 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¿Cuál es el mejor gimnasio de Madrid?What is the best gym in Madrid?
- 2Quiero apuntarme a un gimnasio en Madrid. ¿Cuáles me recomiendas?I want to join a gym in Madrid. Which ones would you recommend?
- 3¿Qué gimnasio de Madrid es bueno para principiantes?Which gym in Madrid is good for beginners?
- 4¿Dónde hay un gimnasio en Madrid con buenas clases colectivas?Where can I find a gym in Madrid 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 Madrid
- 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