Amazon turns to AI to help customers find clothes that fit when shopping online

After recently turning to generative AI to enhance its product reviews, e-commerce giant Amazon today shared how it’s now using AI technology to help customers shop for apparel online. The company explains it’s now using large language models, generative AI, and machine learning to power four AI-powered features that will help customers find clothing that fits — an ongoing challenge when shopping online and the leading cause for apparel returns.

According to a study by Coresight Research, the average return rate for clothing ordered online is 24.4%, which is 8 percentage points higher than the overall online return state. In addition, retailers and brands said online returns had grown over the past two years. Often, that’s in part because today’s consumers will buy an item in multiple sizes or colors and then return those that don’t work out, as the process of home try-ons and shipping items back has become easier.

To address this challenge, Amazon has introduced AI into the online shopping experience in four ways: in personalized size recommendations, a “Fit Insights” tool for sellers, AI-powered highlights from fit reviews left by other customers, and reimagined size charts.

With the personalized size recommendations, Amazon Fashion used AI to develop a deep learning algorithm that will help customers find their best-fitting size across a variety of styles.

This system works by considering the size relationship between brands’ size systems, the product’s reviews, and the customer’s own fit preferences. The information is combined in real-time to make suggestions of the best-fitting size for a customer and adapts as the customer’s size needs change. The company also uses AI to help them discover the styles that fit them best. However, this feature can be imperfect if a family member regularly shops for another (like their son or daughter) online, as it confuses the system as to what size the customer is versus the child.

Another new feature, “Fit Review Highlights,” could help to combat that problem, however. This feature is an extension of the newly added AI-generated Customer Review Highlights introduced in August 2023, which provide a short paragraph summary that details the customer sentiment and product features, as well as provides key product attributes as clickable buttons.

Image Credits: Amazon

With the Fit Review Highlights, Amazon extracts information about the apparel’s fit from the customer reviews, including things like size accuracy garment fit on specific body areas, and fabric stretch. Large language models extract details from the customer reviews and then AI summarizes the findings into an easy-to-read highlight personalized to the user, Amazon explains. This could help save users time as they wouldn’t have to read through hundreds of reviews to get a sense of the item’s fit.

The retailer is also now leveraging AI to improve size charts across the site. With large language models, Amazon Fashion is extracting and cleaning product size charts from multiple sources and then transforming the data into standardized sizes. This process will remove duplicate information and auto-correct missing or incorrect measurements, leading to more accurate charts — and therefore, fit.

Sellers, too, will gain access to AI-powered insights. With a Fit Insights Tool from Amazon Fashion, sellers are provided with an understanding of customer’s fit needs so they can improve how they communicate sizing to customers — e.g. “true to size,” or if an item runs smaller or larger, for instance.

This information can also be used to guide their future manufacturing efforts, Amazon notes. In this case, large language models are used to extract and aggregate customer feedback on fit, style, and fabric in addition to returns, size chart analyses, and customer reviews. Machine learning is also used to identify errors in the brand’s size charts, if any.

Image Credits: Amazon

These features are only a handful of AI advances that Amazon has employed AI to improve the shopping experience on its site in recent months. Beyond the customer review highlights, Amazon also debuted generative AI tools to help sellers write their product descriptions and enhance their product images. The latter could boost click-through rates by 40%, the retailer estimated at the time. Outside of Amazon Web Services, the company has also brought AI to other consumer products, including Alexa and Fire TV.

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