Alibaba’s Qwen Tech Lead Steps Down Following Major Model Release

Alibaba’s fast-growing AI division is facing an unexpected leadership change just days after rolling out its newest models.

Junyang Lin, one of the most prominent technical leaders behind the company’s Qwen AI project, announced on X that he was “stepping down” from the team. He did not share further details about the decision. According to his LinkedIn profile, Lin joined Alibaba in July 2019 and moved to the Qwen team in April 2023, where he became a central figure in the project’s development.

The timing raised eyebrows across the AI community. Lin’s departure came only a day after Alibaba unveiled its Qwen 3.5 Small Model series a launch that marked another major step in the company’s push to compete at the highest levels of global AI development.

A Critical Moment for Qwen

Since its debut in April 2023, the Qwen model family has grown into one of China’s most prominent open-weight AI initiatives. After receiving regulatory clearance, Alibaba opened the models to public use in September 2023. Recent versions have delivered benchmark performances that frequently rival offerings from leading U.S. AI firms.

On Monday, Alibaba introduced four new Qwen 3.5 small models ranging from 0.8B to 9B parameters. The company described them as native multimodal systems built for flexible deployment, including on-device AI applications and lightweight agent-based use cases.

The release attracted attention well beyond China. Elon Musk commented on X that the models demonstrated “impressive intelligence density,” highlighting the growing global interest in Alibaba’s AI efforts.

Strong Reactions From the Community

Lin’s exit prompted an unusually emotional response from colleagues and partners, many of whom credited him as instrumental to Qwen’s success.

Wenting Zhao, a research scientist on the Qwen team, described the moment as “the end of an era,” thanking Lin publicly for his leadership in advancing open-source AI and engineering within the project.

Yuchen Jin, CTO of AI infrastructure startup Hyperbolic, said Lin played a key role in connecting Qwen with the broader developer ecosystem, recalling intense late-night collaboration during model launches.

Tiezhen Wang, head of APAC ecosystem at Hugging Face, also called the departure “an immense loss” for the Qwen initiative.

Chen Cheng, another contributor, wrote that he was “heartbroken” by the news and appeared to suggest the move may not have been entirely voluntary. In a post directed at Lin, he wrote, “I know leaving wasn’t your choice,” noting that they had been working together on releases just hours earlier.

Adding to the uncertainty, Binyuan Hui, another Qwen team member, updated his X profile to read “formerly MTS @Alibaba-Qwen,” though it remains unclear whether he has also left the company.

Unanswered Questions

Neither Lin nor Alibaba has publicly clarified the circumstances surrounding the departure. The company has not commented on the leadership structure of the Qwen team or the reasons behind the change.

The development comes at a time of intensifying global competition in artificial intelligence, as companies race to build systems capable of rivaling those from OpenAI, Google, and Anthropic.

For now, Lin’s sudden exit leaves open questions about the future direction of Qwen and about Alibaba’s broader strategy in the increasingly competitive AI landscape.