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Gyms in Phoenix that AI assistants recommend

Mountainside Fitness is named most, in 83% of 36 answers.

The ranking

AI Recommendation Rate

Gyms in Phoenix named by AI assistants, November 2026

  1. 1Mountainside Fitness83%

    95%: 68 to 92%

    ChatGPT
    83%
    Claude
    67%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    1.6

    Named in answers to

    • What is the best gym in Phoenix?, from ChatGPT, Claude and Gemini
    • I want to join a gym in Phoenix. Which ones would you recommend?, from ChatGPT, Claude and Gemini
    • Which gym in Phoenix is good for beginners?, from ChatGPT, Claude and Gemini
    • Where can I find a gym in Phoenix with good group classes?, from ChatGPT, Claude and Gemini
    Is this your business?
  2. 2EōS Fitness83%

    95%: 68 to 92%

    ChatGPT
    92%
    Claude
    100%
    Gemini
    58%
    Questions
    4 of 4
    Avg. position
    2.3

    Named in answers to

    • What is the best gym in Phoenix?, from ChatGPT, Claude and Gemini
    • I want to join a gym in Phoenix. Which ones would you recommend?, from ChatGPT, Claude and Gemini
    • Which gym in Phoenix is good for beginners?, from ChatGPT, Claude and Gemini
    • Where can I find a gym in Phoenix with good group classes?, from ChatGPT and Claude

    Also written EOS Fitness, EoS Fitness, EOS Fitness Phoenix

    Is this your business?
  3. 3Life Time56%

    95%: 40 to 71%

    ChatGPT
    75%
    Claude
    75%
    Gemini
    17%
    Questions
    3 of 4
    Avg. position
    3.2

    Named in answers to

    • What is the best gym in Phoenix?, from ChatGPT and Claude
    • I want to join a gym in Phoenix. Which ones would you recommend?, from ChatGPT, Claude and Gemini
    • Where can I find a gym in Phoenix with good group classes?, from ChatGPT and Claude

    Also written Lifetime Fitness, Life Time Biltmore, Lifetime Fitness Phoenix, Life Time Chandler/Phoenix

    Is this your business?
  4. 4Planet Fitness42%

    95%: 27 to 58%

    ChatGPT
    58%
    Claude
    42%
    Gemini
    25%
    Questions
    3 of 4
    Avg. position
    2.8

    Named in answers to

    • What is the best gym in Phoenix?, from ChatGPT
    • I want to join a gym in Phoenix. Which ones would you recommend?, from ChatGPT and Claude
    • Which gym in Phoenix is good for beginners?, from ChatGPT, Claude and Gemini
    Is this your business?
  5. 5LA Fitness31%

    95%: 18 to 47%

    ChatGPT
    25%
    Claude
    67%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    3.4

    Named in answers to

    • What is the best gym in Phoenix?, from Claude
    • I want to join a gym in Phoenix. Which ones would you recommend?, from ChatGPT and Claude
    • Which gym in Phoenix is good for beginners?, from ChatGPT and Claude

    Also written LA Fitness Phoenix

    Is this your business?
  6. 6The Madison Improvement Club28%

    95%: 16 to 44%

    ChatGPT
    8%
    Claude
    0%
    Gemini
    75%
    Questions
    3 of 4
    Avg. position
    2.3

    Named in answers to

    • What is the best gym in Phoenix?, from Gemini
    • I want to join a gym in Phoenix. Which ones would you recommend?, from Gemini
    • Where can I find a gym in Phoenix with good group classes?, from ChatGPT and Gemini
    Is this your business?
  7. 7VASA Fitness25%

    95%: 14 to 41%

    ChatGPT
    0%
    Claude
    75%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    5

    Named in answers to

    • What is the best gym in Phoenix?, from Claude
    • I want to join a gym in Phoenix. Which ones would you recommend?, from Claude
    • Which gym in Phoenix is good for beginners?, from Claude
    • Where can I find a gym in Phoenix with good group classes?, from Claude

    Also written VASA Fitness Phoenix

    Is this your business?
  8. 8Orangetheory Fitness22%

    95%: 12 to 38%

    ChatGPT
    25%
    Claude
    25%
    Gemini
    17%
    Questions
    1 of 4
    Avg. position
    3.1

    Named in answers to

    • Where can I find a gym in Phoenix with good group classes?, from ChatGPT, Claude and Gemini

    Also written Orange Theory Fitness

    Is this your business?
  9. 9F45 Training17%

    95%: 8 to 32%

    ChatGPT
    25%
    Claude
    8%
    Gemini
    17%
    Questions
    1 of 4
    Avg. position
    4.2

    Named in answers to

    • Where can I find a gym in Phoenix with good group classes?, from ChatGPT, Claude and Gemini

    Also written F45 Training Phoenix

    Is this your business?
  10. 10YMCA of Greater Phoenix14%

    95%: 6 to 29%

    ChatGPT
    25%
    Claude
    17%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    4.6

    Named in answers to

    • I want to join a gym in Phoenix. Which ones would you recommend?, from ChatGPT
    • Which gym in Phoenix is good for beginners?, from ChatGPT and Claude
    • Where can I find a gym in Phoenix with good group classes?, from Claude

    Also written YMCA of Metropolitan Phoenix, The Lincoln Family Downtown YMCA, YMCA of the Valley

    Is this your business?
  11. 11Crunch Fitness14%

    95%: 6 to 29%

    ChatGPT
    0%
    Claude
    42%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    5

    Named in answers to

    • I want to join a gym in Phoenix. Which ones would you recommend?, from Claude
    • Which gym in Phoenix is good for beginners?, from Claude
    • Where can I find a gym in Phoenix with good group classes?, from Claude

    Also written Crunch Fitness Phoenix

    Is this your business?
  12. 12CrossFit Central Phoenix8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    5

    Named in answers to

    • What is the best gym in Phoenix?, from Claude
    Is this your business?
  13. 13Title Boxing Club Phoenix8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    6.3

    Named in answers to

    • What is the best gym in Phoenix?, from Claude
    • I want to join a gym in Phoenix. Which ones would you recommend?, from Claude
    • Where can I find a gym in Phoenix with good group classes?, from Claude
    Is this your business?
  14. 14Arizona Athletic Club8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    25%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    7.3

    Named in answers to

    • What is the best gym in Phoenix?, from Claude
    • I want to join a gym in Phoenix. Which ones would you recommend?, from Claude
    Is this your business?
  15. 15Biltmore Fitness6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    17%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • What is the best gym in Phoenix?, from Gemini
    • Where can I find a gym in Phoenix with good group classes?, from Gemini

    Also written Arizona Biltmore Fitness Center

    Is this your business?
  16. 16CorePower Yoga Phoenix6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    1 of 4
    Avg. position
    3.5

    Named in answers to

    • Where can I find a gym in Phoenix with good group classes?, from Claude
    Is this your business?
  17. 17CrossFit Encore6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    6

    Named in answers to

    • I want to join a gym in Phoenix. Which ones would you recommend?, from Claude
    • Where can I find a gym in Phoenix with good group classes?, from Claude
    Is this your business?

Open a row to see each assistant's share of its 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. 4 more names came up in a single answer and are counted above but not listed.

Gyms in Phoenix: is this your field?

21different names in 36 answers, 4 of them only once. The assistants change their minds from one answer to the next.

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How the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about gyms in Phoenix, ChatGPT, Claude and Gemini named Mountainside Fitness most often, in 83% of answers (its AI Recommendation Rate), then EōS Fitness (83%) and Life Time (56%). Across 36 answers they named 21 different businesses, 4 of them only once. Each of four buyer questions was asked three times, in English, in November 2026.

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.

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

Gyms · Phoenix

83% of answers named Mountainside Fitness

Answers
36
Businesses named
21
Named only once
4
Named by 2+ assistants
9 of 17
Named again on a rerun
73%

Edition November 2026. Download the data

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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
1EōS Fitness92%EōS Fitness100%Mountainside Fitness100%
2Mountainside Fitness83%Life Time75%The Madison Improvement Club75%
3Life Time75%VASA Fitness75%EōS Fitness58%
4Planet Fitness58%Mountainside Fitness67%Planet Fitness25%
5LA Fitness25%LA Fitness67%Life Time17%

Questions about gyms in Phoenix

How AI assistants recommend gyms

ChatGPT, Claude and Gemini named Mountainside Fitness most often, in 83% of 36 answers, then EōS Fitness (83%) and Life Time (56%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

Not always. ChatGPT named EōS Fitness most often (92% of its answers), Claude EōS Fitness (100%) and Gemini Mountainside Fitness (100%). 9 of the 17 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 73% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for gyms, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend gyms shows what an owner can work on. Nothing can guarantee that an assistant names you.

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 Phoenix, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/gyms/phoenix"><img src="https://aigrow.gg/badges/index/2026-11/gyms/phoenix.svg" width="312" height="100" alt="Named by AI assistants: Gyms in Phoenix, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant. 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. 1What is the best gym in Phoenix?
  2. 2I want to join a gym in Phoenix. Which ones would you recommend?
  3. 3Which gym in Phoenix is good for beginners?
  4. 4Where can I find a gym in Phoenix 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 the United States. From the AI Source Map: 11 answers.

See every site for this category
reddit.com
Read in 91% of the answers
wikipedia.org
Read in 73% of the answers
equinox.com
Read in 64% of the answers

AI Visibility Index

Elsewhere in the Index

Gyms elsewhere
AtlantaAustinBostonChicagoDallasDenver
Also in Phoenix
DentistsLawyersAccountantsPlumbersReal estate agenciesRestaurants

Not on this list? See what ChatGPT says about your business

Gyms, Phoenix: see whether the assistants name you, or someone else.

Free, no account, no card. About a minute.

Read the method

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