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Anthropic accuses Alibaba of running the largest distillation campaign yet against Claude

Anthropic has accused Alibaba of orchestrating the largest known distillation attack in its history to extract Claude AI capabilities. The company alleges that Alibaba used thousands of fraudulent accounts to conduct millions of unauthorized exchanges. These claims were communicated to U.S. senators.

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What changed

Anthropic formally alleged that Alibaba used fake accounts to illicitly extract Claude AI capabilities.

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  1. Anthropic Accuses Alibaba of Massive Claude AI Distillation Attack

    Anthropic has accused Alibaba of orchestrating the largest known distillation attack in its history to extract Claude AI capabilities. The company alleges that Alibaba used thousands of fraudulent accounts to conduct millions of unauthorized exchanges. These claims were communicated to U.S. senators.

    What's confirmed:

    • Anthropic describes the campaign as the largest known distillation attack on the company to date.
    • Anthropic alleges Alibaba used 25,000 fake accounts to access Claude AI.
    • The campaign involved 28.8 million exchanges between April and June.
    • Anthropic reported these allegations to U.S. senators.
    • Anthropic claims the extraction of capabilities was brazen and illicit.

    Still unconfirmed:

    • Alibaba's Qwen lab specifically was responsible for the attack.
    • DeepSeek was involved in the use of fake accounts and exchanges.
    • The attack targeted Mythos capabilities.
    confidence 90%