Walmart Swears It Prices Products. The Patents Price You

The country's biggest retailer swears it will never price you personally. Its own patent filings describe exactly how it would.

"Walmart says one thing in its damage-control letters to customers, another to its investors behind closed doors, and a different thing entirely to the United States Patent and Trademark Office."

— Lindsay Owens, president and CEO of Groundwork Collaborative

The price tag has long been the last neutral fact in the American economy. It did not ask your income, your ZIP code, or your kid's age. It was the same number whether you were a landlord or a line cook, and that quiet universality is one of the reasons Walmart built an $833 billion company on the promise: Every Day Low Price, for everyone, always.

Last month, the company's chief executive decided that promise needed restating. In a letter to customers published September 25, CEO John Furner reaffirmed Walmart's "Every Day Low Prices" strategy and added a line that reads like a prayer in the new economy: "We price the product, not the person." The letter came after a Senate Judiciary subcommittee hearing called "Big Tech Has Reinvented the Ripoff," where economists and advocates spent a morning describing how airlines, hotels, and online retailers quietly charge different people different prices for the same item.

But the same month, in front of investors behind closed doors, Walmart's US chief executive, Dave Guggina, offered a number that is harder to pray away. "When customers engage with Sparky, their average order value jumps 40%," he said. Sparky is the AI shopping assistant Walmart launched last year.

Translation: the company that swears it does not price people is publicly touting a shopping assistant that, in the company's own words, adds 40 percent to the average bill.

Walmart has spent the past three weeks managing that gap. On Monday, Dan Bartlett, the company's executive vice president of corporate affairs, published a letter calling the watchdog's concerns "mischaracterizations" and "unfounded conclusions." "The facts are straightforward," Bartlett wrote. "We price products, not people. Walmart does not and will not use an individual customer's personal information, income, shopping history, urgency or willingness to pay to set an individualized price. We do not engage in dynamic pricing, raising prices in response to a hot afternoon or an approaching snowstorm, for example."

He addressed the assistant directly, too: "We do not use AI to upcharge our customers."

It is a clean denial, and it is worth holding in your head for a moment, because on the same day a nonprofit called Groundwork Collaborative released a report with a name that does the arguing for it: "The Walmart Watchtower: Patents Speak Louder Than Pledges."

The report is a line-by-line reading of more than a dozen patents Walmart holds or has applied for, each one describing a tool for reading a customer and adjusting the deal. Read together, they sketch a system, not a stray idea.

Some of the technology is already patented, according to the report. It can estimate a child's age from a family's purchase history and steer families toward specific products and price points as they grow. It can run pricing experiments on shoppers, pushing the same price up little by little over time to find how far it can go before the customer notices or leaves. It can withhold coupons from customers the store judges likely to pay full price. It can change the price of an item based on what is already in your cart. And it can set the price you see in a search on Walmart's own site based on your purchase history, where you live, and other identifying characteristics, with the report's example showing one customer charged $90 while another sees the same item at $110.

The pending applications go further. They describe using facial recognition, in-store cameras, Wi-Fi signals, and even heart-rate or glucose data to measure how a shopper reacts to a product. They describe monitoring a customer's social media to decide between a coupon and full price. They describe tracking daily routines: kids' sports practices, exercise classes, work, visits to friends and relatives.

A store that can estimate your child's age from your purchase history is not a store with a stray patent. It is a store that already knows when the crib business is over.

Walmart's response, so far as the record shows, is that none of it means anything. Patents are not proof of intent, Bartlett wrote; the company "does not and have committed not to" pursue individualized pricing. The digital shelf labels, the glowing e-ink prices now spreading through its stores, "do not identify customers, nor do they independently set prices."

That is the argument. It has a serious problem, which is that it requires you to believe a company spends years building high-tech pricing tools, hires experts to run them, and files patents to protect them, only to let all of it collect dust.

"Corporations don't spend years building high-tech pricing tools, hiring experts, and filing patents just to let them collect dust," Owens wrote. "They do it because they see a path to higher profit, one that runs right through everyday consumers' budgets."

Owens, who leads Groundwork, has spent the year building the case that the era of the common price is ending. She testified at the Senate hearing in August that set up this whole fight, and in late September she published a book, "Gouged," arguing that "Every Day Low Price" was always a marketing slogan, not a moral commitment, and that AI has simply removed the last labor cost of personalizing the price: the price gun.

There is a reason "dynamic pricing" used to be an airline word. Airlines, hotels, and ride apps price the person. They have always done it, and most of them admit it; the trick is that you can accept the $417 ticket when the algorithm thinks you are a last-minute business traveler. Retail was different, at least in theory. The grocery store's whole social contract was that the milk costs the same for everybody. That universality is what allowed a discount chain to tell tens of millions of customers a week that they were smart to be there.

The Watchtower report suggests that contract is up for renegotiation, with the terms already drafted.

Groundwork followed its August testimony with a 12-point "Shopper's Bill of Rights" in late September, a proposed set of guardrails: no pricing that uses personal data, no secret price experiments, disclosure of what an AI shopping assistant can see. Owens said the new patent analysis is meant to let "Americans decide for themselves," and she has pressed Walmart to publish what Sparky can see, how that information shapes its recommendations and purchases, and whether sensitive consumer data could be "exposed, misused, or used against shoppers."

No answer had been given as of Tuesday.

There is a comfortable version of this story, and Walmart would like you to live in it. The patents are defensive. The 40 percent is coincidence. The same price will always be the same price, because a discount supermarket ran the experiment in the 1960s and it worked.

The less comfortable version is that the patent office does not do damage control, and that a company which has already told investors its new assistant jumps the average order by 40 percent has a hard time explaining, afterward, what the number meant.

The price tag survived two centuries as the one number that did not need context. It is now becoming a profile: what you have bought, where you live, how fast your heart moves past the end cap. The country's biggest retailer has spent a quarter-century selling the comfort of the same price for everyone. Its own paperwork now suggests the next step is much simpler.

Figure out who you are. Then set the price.