Gyms in Frankfurt that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for gyms in Frankfurt, 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
- 22
- Named only once
- 7
- Named by 2+ assistants
- 8 of 15
- Named again on a rerun
- 66%
Edition September 2026. Download the data
Asked for gyms in Frankfurt, ChatGPT, Claude and Gemini most often named Fitness First (100% of answers), ELEMENTS (94%) and McFIT (58%). Across 36 answers they named 22 different businesses, 7 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 | Fitness FirstAlso written Fitness First Frankfurt Hauptwache, Fitness First Frankfurt - MyZeil, Fitness First Frankfurt, Fitness First Frankfurt Konstablerwache, Fitness First Frankfurt - Konstablerwache, Fitness First Frankfurt – MyZeilIs this your business? | 95%: 90 to 100% | 100% | 100% | 100% | 4 of 4 | 1.4 |
| 2 | ELEMENTSAlso written ELEMENTS Eschenheimer Turm, Elements, ELEMENTS Fitness und Wellness Frankfurt, Elements Fitness & Wellness, Elements Fitness und Wellness Frankfurt, Elements Eschenheimer TurmIs this your business? | 95%: 82 to 99% | 83% | 100% | 100% | 4 of 4 | 2.1 |
| 3 | McFITAlso written McFIT Frankfurt-Innenstadt, McFIT Frankfurt, McFIT Frankfurt am Main, McFIT Frankfurt am Main InnenstadtIs this your business? | 95%: 42 to 73% | 42% | 50% | 83% | 4 of 4 | 4 |
| 4 | PRIME TIME fitnessAlso written Prime Time Fitness Frankfurt, PRIME TIME fitness Main Tower, PRIME TIME fitness Westend, PRIME TIME fitness Bockenheim, Prime Time Fitness, Prime Time Fitness Frankfurt OpernplatzIs this your business? | 95%: 35 to 66% | 42% | 100% | 8% | 4 of 4 | 2.7 |
| 5 | MainGymAlso written MainGym FrankfurtIs this your business? | 95%: 14 to 41% | 0% | 0% | 75% | 3 of 4 | 3.4 |
| 6 | FITSEVENELEVENAlso written 7/11 Fitness Frankfurt Sachsenhausen, 7/11 Fitness Frankfurt Westend, 7/11 Frankfurt Zeil, Fit Seven Eleven, Fitseveneleven, FitSevenElevenIs this your business? | 95%: 14 to 41% | 0% | 58% | 17% | 3 of 4 | 4.7 |
| 7 | FitXAlso written FitX Frankfurt, FitX Frankfurt-BornheimIs this your business? | 95%: 12 to 38% | 8% | 17% | 42% | 2 of 4 | 4.4 |
| 8 | Holmes PlaceAlso written Holmes Place Frankfurt, Holmes Place Frankfurt Am Hauptbahnhof, Holmes Place Frankfurt - Börsenplatz, HOLMES PLACE Frankfurt am Main, Holmes Place Frankfurt Am OpernplatzIs this your business? | 95%: 10 to 35% | 33% | 8% | 17% | 3 of 4 | 2.9 |
| 9 | David Lloyd Meridian Frankfurt Skyline PlazaIs this your business? | 95%: 10 to 35% | 0% | 58% | 0% | 3 of 4 | 4.3 |
| 10 | JOHN REED FitnessAlso written John Reed Fitness, JOHN REED Fitness Frankfurt InnenstadtIs this your business? | 95%: 4 to 25% | 17% | 0% | 17% | 2 of 4 | 4 |
| 11 | TG Bornheim 1860Is this your business? | 95%: 4 to 25% | 0% | 33% | 0% | 2 of 4 | 6 |
| 12 | Kieser Training FrankfurtIs this your business? | 95%: 3 to 22% | 25% | 0% | 0% | 3 of 4 | 4.3 |
| 13 | clever fitAlso written Clever Fit Frankfurt, clever fit Frankfurt am MainIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 2 of 4 | 3 |
| 14 | FTG FrankfurtIs this your business? | 95%: 2 to 18% | 0% | 17% | 0% | 2 of 4 | 4.5 |
| 15 | XTRAFIT FrankfurtIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 2 of 4 | 4.5 |
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.
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 | Fitness First100% | Fitness First100% | Fitness First100% |
| 2 | ELEMENTS83% | ELEMENTS100% | ELEMENTS100% |
| 3 | McFIT42% | PRIME TIME fitness100% | McFIT83% |
| 4 | PRIME TIME fitness42% | FITSEVENELEVEN58% | MainGym75% |
| 5 | Holmes Place33% | David Lloyd Meridian Frankfurt Skyline Plaza58% | FitX42% |
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/frankfurt"><img src="https://aigrow.gg/badges/index/2026-09/gyms/frankfurt.svg" width="312" height="100" alt="Named by AI assistants: Gyms in Frankfurt, 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 Fitnessstudio in Frankfurt?What is the best gym in Frankfurt?
- 2Ich möchte mich in Frankfurt in einem Fitnessstudio anmelden. Welche empfiehlst du?I want to join a gym in Frankfurt. Which ones would you recommend?
- 3Welches Fitnessstudio in Frankfurt ist gut für Anfänger?Which gym in Frankfurt is good for beginners?
- 4Wo gibt es in Frankfurt ein Fitnessstudio mit guten Gruppenkursen?Where can I find a gym in Frankfurt 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 Germany. From the AI Source Map: 8 answers.
- 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
- Also in Frankfurt
- 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.
Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0