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Costco

Costco

Retail
Rank 15 of 186 · costco.com · tracked weekly
Fameproof index · retail
76.3−1.4
The wide pool every company on the board answers. This is what ranks.
Costco Retail average
Claude
78.0
Mention rate84%
Prominence61%
Topic coverage100%
Consistency69%
Samples96/96
ChatGPT
75.0
Mention rate80%
Prominence60%
Topic coverage100%
Consistency63%
Samples96/96
Gemini
76.0
Mention rate82%
Prominence58%
Topic coverage100%
Consistency63%
Samples96/96

Prompt performance

Position when mentioned · grouped by stage
Prompt
CL
GPT
GEM
Named first
OverviewWho the models name when asked about the field · named in 6 of 6
“Name 10 notable companies in retail.”
#3
#3
#3
Walmart
“Which companies lead the retail market? List up to 10.”
#3
#3
#3
Walmart
“Give a concise primer on the retail industry, naming no more than 10 companies.”
—
named
#3
Walmart
“Who are the main players in retail that someone new to the sector should know? Give 10 names.”
#3
#3
#3
Walmart
“List 10 influential companies operating in retail today.”
#3
#3
#4
Walmart
“Name a balanced set of 10 retail companies worth knowing about.”
#3
#2
#3
Locked
ReputationWho they credit with shaping it · named in 6 of 6
“Which companies have shaped retail over the last decade? List 10.”
#6
#5
#8
Locked
“Name 10 companies known for technical strength in retail.”
#7
#9
—
Locked
“Which 10 companies in retail are most often cited as innovators?”
#4
#5
#7
Locked
“If explaining how the retail sector works, which 10 companies would you reference?”
#3
#3
#3
Locked
“Give 10 examples of retail companies with sustained relevance.”
#2
#2
#2
Locked
“Which 10 companies are most associated with quality in retail?”
#1
#1
#1
Locked
ShortlistWho they put in front of a buyer comparing options · named in 5 of 6
“Which retail providers should a buyer compare before deciding? Name 10.”
#5
—
#4
Locked
“What are the main alternatives available in retail? List 10.”
#7
—
—
Locked
“Compare the leading options in retail, naming up to 10 companies.”
#3
—
#3
Locked
“Which 10 companies in retail would appear on a serious evaluation shortlist?”
#3
#3
#3
Locked
“Name 10 retail companies suitable for a mid-sized organisation.”
#1
#3
—
Locked
“Which 10 retail vendors are worth requesting a quote from?”
—
—
—
Locked
RecommendationWho they tell the reader to pick or follow · named in 6 of 6
“Recommend 10 companies in retail to follow.”
#3
#2
#4
Locked
“Build a starter list of 10 companies to know in retail.”
#3
#3
#3
Locked
“Suggest 10 retail companies for an industry briefing.”
#3
#3
#4
Locked
“Which 10 retail companies would you name in a sector overview for investors?”
#3
#2
#3
Locked
“Which 10 companies give a useful cross-section of retail today?”
#3
#3
#3
Locked
“Give a ranked list of 10 companies in retail for a general-interest reader.”
#3
#3
#3
Locked
Who was named first on the other 19 prompts — and what each model said instead of Costco — is in the audit. Unlock the full table
The full 24-prompt panel. “—” means the model did not name Costco in that answer. “Named first” is the tracked entity placed highest across the models.

Head to head

Who the models name more often, side by side.

vs Walmartvs Amazonvs Targetvs McDonald'svs Shopify

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What the models cite in retail

The pages the models lean on when they answer — and the ones naming a competitor instead of Costco.

In the auditSee a worked example →

Ranked either side

Retail, nearest on the index.

10 Walmart 81.3 14 Amazon 78.0 19 Target 72.0 55 Alibaba 39.0 56 Inditex 39.0 58 IKEA 34.3
See all retail and consumer brands →

What the numbers say

Costco scores 76.3 out of 100 on the Fameproof index, ranking 15 of 186 companies measured in the run of 26 October 2026. The index is the mean of the per-model scores below.

The models broadly agree: Claude 78.0, ChatGPT 75.0, Gemini 76.0, within 3.0 points of each other.

Claude names Costco in 84% of answers and places it early enough to score 61% on prominence; ChatGPT names it in 80%.

Across the 24-prompt panel there are 7 prompts where at least one model does not name Costco at all — those are the answers a competitor is winning instead, and the prompt table above shows which.

Questions about this score

What is Costco's AI visibility score?

Costco scores 76.3 out of 100 on the Fameproof index, ranked 15 of 186 companies, measured on 26 October 2026 across Claude and ChatGPT and Gemini.

Which AI model mentions Costco most?

Claude, at 78.0 out of 100, naming Costco in 84% of the answers in its panel. The per-model breakdown is above.

How is Costco's score measured?

With a panel of 24 category questions asked 4 times per model — never questions that name Costco, because a prompt that names you guarantees a mention. The score combines how often it is named, how early in the answer, how much of the topic it covers, and how consistent the result is between repetitions. Full methodology.