An IT Times hands-on test, authorized for publication by 36Kr, found that AI shopping assistants from Taobao, JD, and Douyin/Doubao could recommend products but often failed on complex coupons, thresholds, and split-payment calculations. Taobao could read the user's current coupons, while JD AI购 could not access specific cart items. Doubao confused original and post-discount prices and overlooked incompatible coupon rules. In a separate consumer case, Doubao, Qwen, and DeepSeek produced substantially different estimates for the same shopping guide, with the reported maximum error reaching 500 yuan against the actual payment.