Alibaba’s Qwen tech lead steps down after major AI push

Alibaba's Qwen AI initiative faces a significant leadership shakeup as Junyang Lin, a central technical leader on the project, announced his abrupt departure on social media platform X. The timing is particularly notable as it comes just one day after Alibaba unveiled its new Qwen 3.5 Small Model series—four native multimodal models spanning 0.8B, 2B, 4B, and 9B parameters designed for on-device deployment and lightweight agents. The Qwen family has emerged as one of China's most prominent open-weight AI efforts, with recent releases rivaling systems from leading U.S. developers like OpenAI and Anthropic in benchmark performance.

The departure has drawn unusually strong reactions from the AI community, with Qwen research scientist Wenting Zhao describing it as 'the end of an era' and Hyperbolic CTO Yuchen Jin noting Lin's crucial role in connecting Qwen with global developers. Hugging Face's APAC ecosystem head Tiezhen Wang called it 'an immense loss' for the project. While circumstances remain unclear—with one contributor suggesting 'leaving wasn't your choice'—the exit occurs amid intensifying global AI competition as companies race to build models that can challenge established Western systems. Alibaba has not commented on the leadership change or reasons behind Lin's departure.