McDonald’s faces antitrust lawsuit over AI pricing tool

The pricing tool McDonald’s offers its franchisees is at the center of an antitrust lawsuit filed on October 2, 2026, in a federal court in Chicago. The plaintiff, Michael Thomas, argues that the system uses nonpublic sales and pricing information from different restaurants to guide prices and could thereby encourage coordination that raises prices for consumers.

The complaint also seeks to have the case proceed as a nationwide class action. For now, however, there has been no judicial decision on the merits: claims about how the tool works and its effects are allegations in the complaint, not facts established by a court.

What the lawsuit challenges

According to the complaint, the platform collects transaction data and uses it to recommend prices at restaurants in the United States. The plaintiff’s argument is that sharing nonpublic commercial information among franchisees that may compete in the same market could weaken the independence of their pricing decisions and affect competition.

Thomas says he noticed differences in the cost of his usual order—a Quarter Pounder with Cheese, French fries, and a Coca-Cola—at locations near his home in DeKalb, Illinois. The complaint attributes a possible price-increasing effect to the system, but differences between establishments, on their own, do not demonstrate that there was coordination or that the tool caused those variations.

The request asks the court to certify a class of consumers, order the payment of damages, and restrict the implementation of agreements that, according to the plaintiff, would limit competition. These measures are requests by the plaintiff; available sources do not indicate that they have been granted.

McDonald’s response

McDonald’s calls the lawsuit inaccurate and says it will defend itself. Its position is that franchisees set prices and that the available tools are optional: they can provide information to help manage the business, but, according to the company, they do not automate, coordinate, or set prices.

The company has also described its tool as an informational resource that franchisees may or may not use. In its coverage, the Associated Press reported that McDonald’s said it has used an AI-enhanced pricing tool for more than a decade, and that its recommendations may take into account factors such as a restaurant’s sales, its location, and competitors’ prices. The company says it was already collecting information and making recommendations before using that tool.

The difference between the two accounts is central to the litigation: the plaintiff questions whether the exchange of data and the recommendations can effectively coordinate business decisions; McDonald’s denies that the system has that effect and says each franchisee retains the final decision.

Business and regulatory scope

The case concerns McDonald’s operations in the United States and that country’s antitrust laws. Its relevance to other companies will depend on what is proven about the tool’s design and use, the type of data shared, and the franchisees’ actual decision-making latitude. Filing the lawsuit, by itself, does not determine that the model is illegal or establish a precedent.

For companies that offer pricing systems to franchise networks or independent businesses, the controversy focuses on a specific question: how commercial data and recommendations are combined without replacing—or appearing to replace—the individual decisions of each operator. The proceedings will have to clarify whether the alleged practices occurred and whether they violate the applicable law.