Lin Junyang, the head of Alibaba Group's Qwen artificial intelligence model division, has resigned.

Lin announced his departure on X, stating, "Bye my beloved Qwen," without elaborating on the reasons.

This resignation follows a surge in Qwen's user base. The AI model's mobile application reached 203 million monthly active users in February, a substantial increase from 31.05 million in January. Qwen now ranks third globally, trailing only OpenAI's ChatGPT and ByteDance's Doubao app.

The recent user growth is attributed to aggressive campaigns by Chinese tech giants during the Lunar New Year holidays to attract new users.