I walked through the wine department at my local Costco this week and did something that probably annoyed everyone shopping behind me. I photographed every bottle of red wine on the shelves.
Then I gave the photos to ChatGPT, Claude and Gemini with exactly the same assignment: Act as my expert sommelier. I drink about 50 bottles of red wine a year. Build me a starter cellar for the next 10 to 15 years, with wines I can drink now and others that will actually improve with age. Consider Costco’s prices, don’t be impressed by famous labels, and tell me exactly what to buy.
The results were surprisingly different.
Three AIs, Three Very Different Costco Bills
Gemini was the minimalist. It recommended just 64 bottles at an estimated cost of $1,430.34.
ChatGPT more than doubled the budget, recommending 102 bottles for $4,054.98.
Claude went much bigger: 192 bottles totaling $5,266.08.
But the more interesting result wasn’t how much the AIs wanted me to spend. It was where they agreed.
Three Wines They All Agree On
All three found serious value in less-famous European wines rather than simply filling the cellar with expensive Napa Cabernet. AI was really good at identifying gems, but it wasn’t flawless. ChatGPT got six vintages wrong and Gemini recommended two wines that weren’t in the photographs.
Château Corbin, a Saint-Émilion Grand Cru Classé
One bottle that kept appearing was Château Corbin, a Saint-Émilion Grand Cru Classé priced at just $29.99. Claude and Gemini both made it one of their five strongest buys, while ChatGPT called it an “exceptional” value.
Attilio Ghisolfi Barolo Bussia and 2022 Haut-Batailley
Another standout was Attilio Ghisolfi Barolo Bussia at $36.99 as well as the well-scored 2022 Haut-Batailley (James Suckling (95) and Wine Spectator (94) scores). ChatGPT recommended buying an entire case of the Barolo and called it its best value for aging. Claude also recommended 12 bottles and ranked it among its five strongest buys. Gemini picked it as the bottle most likely to be significantly better in 10 years.
Wines the AIs Didn’t Like
The biggest surprise was what the AIs didn’t like: A recognizable label didn’t impress the bots.
Caymus Cabernet Sauvignon, priced at $66.99, was specifically rejected by all three as a cornerstone of a long-term cellar. ChatGPT said there were better aging opportunities for the money, while Claude and Gemini were even more skeptical about its long-term development.
Stag’s Leap Wine Cellars Artemis Cabernet Sauvignon at $64.99 didn’t fare much better. Gemini and Claude both said to skip it (Claude pointed out that a $59.99 Pauillac was the better buy), and ChatGPT limited it to six bottles.
So what am I actually buying?
I’m not following any one AI’s shopping cart. But when three independent models looking at the same Costco shelves keep circling the same bottles, that’s where I’m paying attention.
And I’m definitely buying the Barolo, and I surprised my wife with a bottle of Haut-Batailley Pauillac 2022.
(Note: Pricing reflects the South San Francisco Costco warehouse on Sept. 28, 2026. Prices and inventory vary by location.)
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