Imagine this: you're shopping for groceries online, only to discover that the same item can cost you up to 20% more depending on who you are. A recent study has revealed that Instacart, a leading online grocery delivery service, is employing artificial intelligence (AI) to charge varying prices for the same products—leaving consumers in the dark about what they should really be paying.
According to an investigation conducted by Consumer Reports and the Groundwork Collaborative, which was made public on Tuesday, Instacart displays different prices for identical household staples across well-known retailers such as Albertsons, Costco, Kroger, Safeway, and Target. The report highlights a concerning trend where customers are unwittingly participating in extensive AI-driven pricing experiments.
The findings raise significant concerns about corporate pricing strategies. The organizations involved in the study pointed out that "Corporate practices like these increase prices for American families. When prices become opaque, it limits the ability of shoppers to compare costs effectively. Furthermore, when pricing becomes unpredictable, budgeting for groceries becomes a challenge."
One of the intriguing aspects of this report is how Instacart utilizes AI to assess customer price sensitivity—essentially, determining how much a grocery store can charge for an item before a shopper decides against purchasing it. This approach differs from dynamic pricing, which alters prices in real-time based on supply and demand dynamics.
Evidence from leaked emails between Instacart and Costco further supports these claims. These emails were inadvertently shared with Consumer Reports when they sought comments regarding the findings. As of now, Costco has not provided a response to CNN's inquiries about this situation.
This revelation comes at a time when many Americans are already grappling with soaring grocery prices, influenced by factors such as tariffs, strict immigration policies, and extreme weather conditions affecting food production.
Instacart was chosen for this study because it stands out as the most prominent e-commerce grocery service, boasting over 250 million orders in just the first three quarters of 2025.
To illustrate the issue, the study involved 437 participants who purchased precisely the same items through Instacart and compared those prices with in-store offerings. The results were striking: every volunteer shopper involved in the tests encountered variations in prices due to algorithmic pricing strategies.
For example, in a single Safeway location in Washington, D.C., a dozen eggs were priced anywhere from $3.99 to $4.79 on Instacart. In another instance, a box of Safeway's private label Corn Flakes exhibited a staggering 23% price difference, ranging from $2.99 to $3.69.
The implications of these AI-driven pricing tactics could add up significantly for regular users of Instacart. The report estimates that shoppers relying on the service might experience a potential annual expense difference of around $1,200 due to these price fluctuations.
In response to these findings, Instacart told CNN that each retailer's pricing strategy is clearly displayed on its app and website, allowing customers to see price differences between online and physical stores. They explained that prices listed on the app often reflect higher costs due to labor and other associated fees.
An Instacart spokesperson elaborated, "Just as retailers have traditionally tested prices in their brick-and-mortar stores to gauge consumer preferences, a select group of ten retail partners—those who already apply markups—conduct similar testing online through Instacart." They emphasized that these "limited, short-term, and randomized tests" are designed to help retailers determine which essential items can remain affordable for shoppers.
So, what do you think? Is it fair for companies to use AI in this manner, potentially leading to increased costs for consumers? Or is this just a reflection of a competitive market trying to adapt to consumer behavior? Share your thoughts below!
