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Costco in the Krillo Index

When shoppers in the United States ask ChatGPT and Gemini where to buy musical instruments, is Costco named? This is the answer from our latest monthly measurement, November 2026.

#24

of 64 stores measured

4/34

buying questions where AI names it; the category median is 1

0

questions where AI recommends it outright

Measured with ChatGPT and Gemini, the same questions for every store in this category, asked in the language of the market. Read how we measure.

Around Costco

#22The Ukulele Site1/34 #23Uke Republic1/34
#24Costco4/34
#25Memphis Drum Shop4/34 #26Sam Ash4/34
See the full ranking for Musical instruments

What AI says about Costco

“Costco / Walmart / Target Useful for inexpensive beginner or kids’ keyboards, though the selection is usually more limited.”

ChatGPT, asked: Where can I buy a keyboard piano online in the United States?

“Best for Entry-Level Value & Returns: Costco”

Gemini, asked: Where can I safely order a digital piano online in the US?

“Costco.com: Excellent customer-friendly returns if you are a member, though keyboard selection is smaller.”

ChatGPT, asked: Which US website lets me return a keyboard most easily if it doesn't work out?

Quoted word for word from the answers in our measurement. What AI says about your store decides which buying questions it names you for.

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