Anthropic accused Alibaba of orchestrating the largest known effort to illicitly clone its Claude AI model, involving over 28.8 million exchanges through nearly 25,000 fraudulent accounts between April and June 2025. The campaign targeted Claude’s advanced capabilities like agentic reasoning and software engineering, following U.S.
restrictions on Anthropic's Mythos model in foreign markets. In a letter to U.S. senators, Anthropic called for consequences against Alibaba and its AI lab, Alibaba Qwen.
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