Purchase Rate Improves by Over 80% via Yahoo! Search 'Shopping AI Assistant' 'Find Products with AI' Feature Powered by Product Comparison Service 'mybest' Data on Product Verification and Selection

mybest Inc. (Headquarters: Chuo-ku, Tokyo; Representative Director and CEO: Toru Yoshikawa; hereinafter "mybest"), which operates the product comparison service "mybest", has been providing data since October 2025 to the "Find Products with AI" feature, which allows users to search for products while talking with the AI of the Yahoo! Search "Shopping AI Assistant (*1)" provided by LY Corporation (hereinafter "LY Corporation"). We are pleased to announce that the purchase rate of users who transitioned to the product purchase page via this feature has been confirmed to improve by over 80% (*3) compared to other routes (*2) within Yahoo! Search. *1: Displayed in web searches on the "Yahoo! JAPAN" app (iOS version, Android version), the smartphone browser version of "Yahoo! JAPAN", and the "LINE" app. *2: A feature in "Yahoo! Search" that directly displays stores carrying the product and product specs in the search results. *3: The measured data is an aggregated result based on the number of purchases at Yahoo! Shopping stores. - Background With the spread of generative AI, attention to the "accuracy" and "reliability" of information is increasing. Since its founding, mybest has accumulated comparison data based on expert knowledge by purchasing and verifying products in-house. We have continued to provide information rooted in actual usability and lifestyle scenes, rather than just specs. Starting in October 2025, we began providing mybest's product verification data and data on how to choose products to the "Find Products with AI" feature of LY Corporation's Yahoo! Search "Shopping AI Assistant". - Purchase Rate Record: Improved by Over 80% Compared to Other Routes When measuring the purchase rate of users who transitioned to the product purchase page via the "Find Products with AI" feature of the "Shopping AI Assistant", it was confirmed that it improved by over 80% compared to other routes within Yahoo! Search. We believe that the polite inquiries from the AI, backed by verification data and expert knowledge, are supporting the user's experience of "choosing with conviction." *Measurement period: January 24, 2026 - February 3, 2026 *Purchase rate = Number of purchases ÷ Number of unique browsers that transitioned to the product purchase page *The measured data is an aggregated result based on the number of purchases at Yahoo! Shopping stores. - The Role Played by mybest's Data In the "Find Products with AI" feature of the "Shopping AI Assistant", mybest's data is utilized in the following ways. - Highly accurate product proposals by presenting selection criteria mybest's "important points when choosing" and "verification results based on actual use" are reflected in the design of the AI's questions, and are utilized as materials for judging product selection. - Contributing to the suppression of misinformation generation By referencing highly reliable data, it contributes to improving the accuracy of AI proposals. - Future Outlook We will continue to support the realization of the "best choice experience" for users by providing high-quality data in the generative AI domain. In addition to expanding the categories of the "Shopping AI Assistant," we will continue to provide value to both users and companies by having mybest's data utilized in more purchasing scenes. Furthermore, mybest has accumulated a vast amount of data useful for product selection through its own verification. For example, mybest's greatest strength is possessing "data you wouldn't know unless you actually use it," such as the fact that the quick-drying speed of a hair dryer is determined not by the air volume or high temperature, but by whether the warm air reaches a wide area, or that the actual capacity of a mobile battery may be lower than the stated capacity, making it important to choose based on measured values. In the future, we will not stop at providing data within mybest's own services, but will further strengthen data integration with various companies, taking on the role of an information infrastructure that supports "convincing choices" in every purchasing scene. - About "Shopping AI Assistant" In this feature, a generative AI acts as a concierge, presenting selection points and up to 3 questions. Based on the user's answers, it proposes up to 5 products that meet the conditions, and if the user wants to narrow it down further, they can narrow the candidates down to a maximum of 3 through additional questions. By utilizing mybest's verification data, it realizes proposals based on "differences when actually used" and "selection criteria" that were difficult to obtain through conventional searches, providing an experience like shopping in a real physical store (*1). Initially launched with 29 home appliance categories, over 200 categories including food, cosmetics, furniture, and fashion were added in February 2026, and it currently supports a total of 16 genres and 276 categories. It is widely attracting attention, such as being selected 4th as "Generative AI Shopping" in the "2026 Hit Forecast" of the December 2025 issue of "Nikkei Trendy". *1 Even when searching for target categories, the "Answer questions and find products" button may not be displayed depending on the search keywords. October 2, 2025 Press Release mybest Begins Data Integration with "Shopping AI Assistant" Feature Supporting Product Selection Provided by Yahoo! Search - mybest Inc. With the mission of "Realizing the 'best choice experience' using the Internet", we develop and operate "mybest", one of the largest product comparison services in Japan, used by over 30 million monthly unique users. Currently, we are expanding to 8 countries and regions outside of Japan, and we aim to realize the "best choice experience" and "change the world." - Location: Sumitomo Fudosan Tsukiji Building, 7-17-1 Tsukiji, Chuo-ku, Tokyo - Representative: Toru Yoshikawa - Founded: October 2016 - Business Activities: Operation of the product comparison service "mybest", which compares and verifies products and services in all genres, such as home appliances, daily necessities, cosmetics, and fashion, to support users in making the best choices. - Corporate site: https://my-best.com/company/ - Product Comparison Service "mybest" "mybest" is one of Japan's largest product comparison services specialized in the area of "choice". Based on thorough in-house verification and fair selection criteria from experts' voices, it provides recommended information on products and services, supporting each individual's best "choice". Moving forward, by cross-referencing our rich product database with user information, we will realize personalized choice experiences for each user, aiming for a world where users can more easily encounter their best choices by using "mybest before you buy."