Tencent begins testing AI assistant Xiaowei inside WeChat

Tencent confirmed Monday it has started limited “grayscale” testing of Xiaowei, an AI assistant embedded inside WeChat for a small user group.yahoo
Xiaowei accepts text and voice input, letting users operate WeChat features and summon mini-programs for tasks like ordering food or hailing rides.thenextweb
The assistant runs primarily on WeChat’s proprietary WeLM language model, with some queries routed to DeepSeek, as Tencent targets a Q3 public rollout.yahoo

Tencent Tests Xiaowei AI Assistant Inside WeChat

Tencent confirmed on Monday that it has begun limited testing of a new AI assistant called Xiaowei inside WeChat, embedding artificial intelligence directly into China’s dominant super app as the company works to close a gap with domestic rivals in an intensifying AI race.

A Command Layer for a Billion Users

WeChat, known as Weixin in China, issued a statement on June 22 confirming that Xiaowei has been made available to a small group of users in what the company describes as “grayscale” testing. The assistant accepts both text and voice input and is designed to act as a command layer atop WeChat’s sprawling mini-program ecosystem — the lightweight apps through which users order food, hail rides, book medical appointments, and make payments without leaving the platform.thenextweb

Users with test access can activate Xiaowei by tapping a dedicated icon in the upper-left corner of WeChat’s main interface. The assistant can operate native WeChat functions such as adjusting settings and sending messages, while also summoning mini-programs for tasks like buying coffee or generating images.bjd

Under the Hood: WeLM and DeepSeek

Xiaowei primarily runs on WeLM, a large language model developed by the Weixin team, while routing certain queries to DeepSeek, according to a separate statement from Tencent’s customer service division. Tencent described its approach as using “multiple AI models, including proprietary and high-quality open-source models”.zaobao

The Xiaowei name is not new — Tencent launched a voice assistant under the same brand in 2017 — but the current iteration is purpose-built for controlling WeChat’s app functions rather than serving as a general-purpose voice tool.letsdatascience

Catching Up in China’s AI Race

Tencent is targeting a wider public rollout in the third quarter of 2026 and is preparing regulatory compliance measures ahead of launch. The move comes as competitors ByteDance and Alibaba have already integrated AI assistants into their own platforms. When the Financial Times first reported Tencent’s AI assistant plans on June 2, the company’s shares surged as much as 10.5 percent in a single session — its largest one-day gain since January 2021.letsdatascience

By placing Xiaowei inside an app with more than a billion daily users rather than launching a standalone chatbot, Tencent is betting that distribution advantage can offset its later start in the generative AI market.thenextweb