Alibaba's Qwen tech lead steps down after major AI push
Reactions rippled through Alibaba's Qwen team after tech lead Junyang Lin stepped down following a major model launch.

TL;DR
- Junyang Lin, a key technical leader on Alibaba's Qwen AI project, has stepped down.
- Lin's departure occurred a day after Alibaba launched its new Qwen 3.5 small models.
- Colleagues and partners expressed surprise and described Lin's role as central to the project.
- Alibaba's Qwen models are prominent open-weight AI efforts from China, rivaling U.S. developers.
- The Qwen 3.5 series includes four models with varying parameters designed for multimodal uses.
- The reasons for Lin's departure remain unclear, and Alibaba has not commented.