Instacart Caught Using AI to Charge Wildly Different Prices for the Same Item

Research by Groundwork Collaborative, Consumer Reports and More Perfect Union found Instacart ran dynamic-pricing experiments that produced identical-basket price dispersion averaging 7% at the same store/time and up to 23% for some customers across a 437-shopper sample (examples include Safeway Seattle carts priced $114.34–$123.93 and a Target Minnesota sample split into seven price groups ranging $81.24–$86.78). The report links the tests to Instacart’s 2022 acquisition of AI firm Eversight and CEO comments about using AI to gauge price sensitivity; retailers contacted said they were unaware of the experiments while Instacart says it scraped prices, added fees to cover costs and that tests have ended. The results suggest material consumer cost increases (research estimates roughly $1,200/year extra for a four-person household at observed fluctuation levels), highlight profit-driven inflationary pressure, and raise reputational and potential regulatory risks as dynamic pricing spreads across grocery retailers.

Analysis

Research from Groundwork Collaborative, Consumer Reports and More Perfect Union documents systematic dynamic-pricing experiments by Instacart across 437 shopper sessions, finding identical-basket price dispersion averaging 7% and reaching as much as 23% for some customers. Concrete examples include Safeway Seattle baskets priced at $114.34, $119.85 and $123.93, and a Target Minnesota sample split into seven price groups ranging $81.24 to $86.78 for the same items.

The report ties the experiments to Instacart’s 2022 acquisition of AI firm Eversight and cites a 2024 CEO remark that AI pricing helps identify category-level price sensitivity; Instacart says it scraped retailer prices, added fees to cover costs and that tests have ended, while retailers such as Target insist they were unaware and deny direct pricing relationships. The study estimates exposure could cost a four-person household roughly $1,200 annually at observed fluctuation levels and cites company-level margin uplift estimates of 2–5% per sale.

Implications include near-term reputational and regulatory risk for Instacart (CART) and public scrutiny of platform-retailer data arrangements, plus broader industry adoption risk as Kroger, Walmart and others deploy dynamic pricing in stores. The combination of algorithmic price experimentation and rising corporate pricing power raises potential inflationary pressure and litigation or enforcement catalysts that could affect valuations and volume dynamics across the online and brick-and-mortar grocery ecosystem.

Key Decisions for Investors

• Reduce or avoid incremental exposure to CART until management provides verifiable evidence tests have ended and until regulatory risk and potential litigation are clearer, monitor company statements and any FTC/state inquiries closely
• Maintain neutral to cautious positions in TGT, WMT and KR while tracking retailer disclosures and contract terms with delivery platforms, as pass-through pricing, consumer backlash or litigation could affect same-store traffic and margins
• Consider tactical hedges for consumer staples/retail beta in portfolios in case of broader regulatory action or reputational-driven volume shifts, and favor companies with transparent pricing controls and direct-to-consumer capabilities