Anthropic has accused Alibaba of orchestrating a significant campaign to clone its AI model, Claude, by utilizing nearly 25,000 fraudulent accounts to engage in over 28.8 million exchanges with the system. This allegation, detailed in a letter to U.S. Senators ahead of a Senate hearing on AI, highlights concerns about industrial-scale AI theft from U.S. companies. Anthropic claims that the attacks, which occurred between April 22 and June 5, targeted Claude’s advanced capabilities, including agentic reasoning and software engineering. The letter warns of a growing circumvention economy in China that enables such illicit activities, undermining U.S. investments in AI research and development. The situation escalates following past accusations against other Chinese firms using similar tactics to extract capabilities from American models. Alibaba has not yet responded to the claims.
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Anthropic Accuses Alibaba of Largest Attack to Clone Claude Using 25,000 Fraudulent Accounts
Hacker News· logickkk1· Sunday, June 28, 2026
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