Amazon uses generative AI to automatically synthesize thousands of customer reviews into a short paragraph on each product page, helping shoppers quickly understand the overall sentiment without reading individual reviews.

The feature launched in testing in June 2023 and rolled out to a subset of U.S. mobile users in August 2023, before expanding across product categories. It appears under a "Customers say" section on product detail pages, labeled with a disclaimer stating the text is "AI-generated from the text of customer reviews." The tool only draws from verified purchases. Some sellers have raised concerns that AI summarization may oversimplify or distort sentiment, particularly for products with mixed reviews.