Walmart Denies AI-Powered Personalized Pricing as Author Alleges Patent Evidence

Walmart escalated a public dispute over its pricing technology Monday, issuing a blunt denial that it uses artificial intelligence or customer data to set individualized prices — a direct rebuttal to allegations in a new book that the retailer is building the infrastructure to do exactly that.

In an open letter, Executive Vice President Dan Bartlett declared the company “prices products, not people,” insisting Walmart does not and will not use personal information, shopping history, or willingness to pay to customize prices for individual shoppers. He also rejected the notion of dynamic pricing tied to real-time conditions like weather or time of day.

The letter targets Lindsay Owens, author of “Gouged,” published Sept. 29, and president of the progressive economic group Groundwork Collaborative. Owens argues Walmart’s own patent filings reveal a strategy to profile customers and vary prices based on behavior and demand. On Monday, Groundwork released a new analysis of those patents, which Owens says shows “an arsenal of technologies” designed to track consumers and feed new pricing models.

At the center of the clash are two technologies Walmart has deployed at scale: electronic shelf labels (ESLs) and Sparky, a generative AI shopping assistant. Bartlett said the digital labels — which replace paper tags and allow remote price updates — do not identify shoppers or set prices autonomously. He characterized the speed of price changes as operational efficiency, not evidence of dynamic pricing.

On Sparky, Bartlett said higher average order values among users reflect better product discovery, not price manipulation. He added that data shared with the assistant is not used to alter the prices customers see.

Owens countered that Walmart’s public assurances conflict with language in patent applications and presentations to investors. She raised specific concerns about what consumer data Sparky accesses, how it shapes recommendations, and whether sensitive information could be exposed. Her group’s patent analysis, released Monday, is intended to let “Americans decide for themselves.”

The confrontation highlights a widening gap between retail’s technological capabilities and public trust. Electronic shelf labels are already widespread in Europe and expanding across U.S. chains including Kroger and Amazon Fresh, primarily for labor savings and accuracy. But their ability to change prices instantly has long fueled speculation about dynamic pricing — a practice common in airlines and ride-hailing but rare in grocery.

Personalized pricing, where different customers see different prices for the same item based on data profiles, remains largely theoretical in brick-and-mortar retail. It faces significant legal hurdles, including the Robinson-Patman Act’s prohibitions on price discrimination and a patchwork of state consumer-protection laws. The Federal Trade Commission has also signaled scrutiny of “surveillance pricing” models.

Walmart’s “Every Day Low Prices” strategy, reaffirmed by CEO John Furner in a Sept. 25 letter, has historically relied on stable, transparent pricing as a competitive differentiator against Amazon’s algorithmic fluctuations. The company’s patents may represent defensive filings or exploratory research rather than deployed systems — a common practice among large tech-driven retailers.

Groundwork Collaborative’s patent analysis went live Monday morning, adding a new layer of documentary evidence to a debate that has so far relied on competing interpretations of intent.