Both Taobao and Tmall are e-commerce platforms under Alibaba, but their positioning and business models are different.

Taobao is a C2C e-commerce platform that focuses on individual consumer purchases and sales. Any individual or enterprise can open a store on Taobao to sell products and services. On Taobao, buyers can choose to buy goods by reading the seller's store reviews and product reviews. Sellers can establish their own credit ratings through the Taobao platform, improve their credibility and increase sales. At the same time, Taobao also provides a series of marketing and promotion tools to help sellers attract more buyers.

Tmall is a B2C e-commerce platform created by Alibaba Group specifically for brand merchants. Tmall aims to provide consumers with a one-stop shopping experience and create a high-quality shopping environment. Tmall ensures the quality of the products sold by strictly reviewing the qualifications of merchants and products, and also provides a richer selection of products and a better shopping experience.

In general, Taobao and Tmall are slightly different in business models and positioning, but they are both important parts of Alibaba's e-commerce ecosystem, and are committed to providing a better shopping experience and becoming a platform that users trust.