Alibaba's Qwen Lab Linked to Major Claude Distillation Campaign

• •Alibaba's Qwen lab used 25,000 fake accounts for 29 million Claude exchanges.
• •This campaign is the largest distillation effort reported, surpassing previous attacks.
• •U.S. lawmakers are considering sanctions against Chinese firms involved in AI model exploitation.

On October 19, 2026, Anthropic reported to Congress that Alibaba's Qwen lab executed a significant distillation campaign involving nearly 25,000 fake accounts, generating approximately 29 million exchanges with Claude between April and June 2026. This operation reportedly surpassed the combined activity of previous distillation efforts by DeepSeek, MiniMax, and Moonshot AI, which had collectively produced over 16 million exchanges. The U.S. government has flagged distillation as a national security concern, with proposed legislation to sanction Chinese firms involved in unauthorized access to AI model outputs. The scale of the Alibaba-linked campaign raises alarms about the potential misuse of AI technologies and the implications for U.S. AI labs. Market reactions included a drop in Alibaba's American depositary receipts following the news. Anthropic's ongoing efforts to protect Claude from such attacks include new defenses against distillation, although they admit they have not fully achieved their goals.