Anthropic accused Alibaba Group and operators affiliated with its Qwen AI lab of using almost 25,000 fraudulent accounts to generate more than 28.8 million Claude exchanges between April 22 and June 5. In a June 10 letter to U.S. Senators Tim Scott and Elizabeth Warren, Anthropic called it the largest known attack of its kind against the company. The San Francisco AI company said the activity involved “distillation,” a technique used to train a less capable model on outputs from a stronger sy...

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