Can AI compare Amazon, Walmart, and Costco prices?

Yes—AI can compare prices across Amazon, Walmart, and Costco, but Costco is usually the trickiest of the three.

AI shopping tools can often compare public listings on Amazon and Walmart, especially when they can match the same item by title, barcode, or image. Costco is harder because pricing can differ between online and warehouse locations, some offers may require a membership sign-in, and bulk pack sizes can make simple total-price comparisons misleading.

For the most accurate result, compare price per unit as well as total price, and verify Costco prices in the warehouse or on the official site before deciding. Exact prices and availability can change, so it’s worth checking the current listing before you buy.