Alibaba’s Qwen team faces leadership changes as Junyang Lin departs, impacting the development of Qwen 3.5 small models. Colleagues highlight his significa
Lin’s Departure from Alibaba’s Qwen Project
Junyang Lin, a central technical leader on Alibaba’s Qwen team, announced his departure from the project on Tuesday, just a day after the company unveiled its new Qwen 3.5 open-weight small models. Lin joined Alibaba in July 2019 and became a key member of the Qwen team in April 2023, according to his LinkedIn profile.
Impact of Lin’s Departure on Qwen Project
Lin’s sudden departure has drawn strong reactions from colleagues and industry partners. Wenting Zhao, a research scientist on the Qwen team, described Lin’s role as central to the project’s progress and thanked him for driving advancements in open source AI and engineering. Yuchen Jin, chief technology officer of AI infrastructure startup Hyperbolic, recalled late-night collaborations with Lin during model launches. Tiezhen Wang, head of APAC ecosystem at Hugging Face, also described the departure as an immense loss for the Qwen project.
Qwen 3.5 Small Model Series
Despite the unexpected departure, Alibaba introduced the Qwen 3.5 Small Model series on Monday, featuring four models with 0.8B, 2B, 4B, and 9B parameters. These native multimodal models are designed for on-device AI deployment and lightweight agents. The launch received attention from figures in the AI community, including Elon Musk, who praised the models' intelligence density on X.
Uncertainty Surrounding Lin’s Departure
The reasons for Lin’s departure remain unclear. Lin did not respond to a request for comment, and the circumstances surrounding his move are still under investigation. Alibaba did not provide specific reasons for the leadership structure changes or the departure of Lin. However, his departure comes at a critical time as global competition among AI developers intensifies, with companies like Alibaba, Google, and Anthropic racing to create models that rival those from leading U.S. developers.
Conclusion
Lin’s departure from Alibaba’s Qwen team has significant implications for the project’s ongoing development and future trajectory. As the tech landscape continues to evolve, the impact of this change on the Qwen project will be closely monitored by both industry insiders and the broader tech community.
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