We got early access to WeChat's new AI assistant "Xiaowei" and ran an initial test. Xiaowei says it's built by the WeChat team， runs on their in-house Chinese LLM WeLM， with DeepSeek handling some responses. Users activate it manually. From there， Xiaowei can set calendar events， send messages， make calls， generate playlists， and spin up mini-programs - WeChat's lightweight in-app tools. It can wake up Meituan for food delivery or http://JD.com for shopping， but the final payment - including transfers and red packets - requires the user to tap through manually. Privacy： chat messages are read for the current session only - not saved， not used for training. Context memory can be disabled manually. The stakes are high. Tencent's top LLM development trails ByteDance and Alibaba， making WeChat - 1B+ users - its most critical AI launch surface. Alipay is already testing AI agents with vehicle booking and food delivery.