Anthropic accuses Alibaba of using nearly 25,000 fraudulent accounts to make 28.8 million exchanges with Anthropic's artificial intelligence model Claude, calling it the largest known distillation attack.Anthropic's head of policy, Sarah Heck, says the campaign ran from late April to early June and sought to extract the model's architecture and task-execution logic so other teams could reproduce Claude's capabilities.Anthropic urges
Congress to tighten export controls on advanced chips, allow US firms to share warnings and penalize entities that carry out distillation, while
Alibaba contests export curbs, has sued the
US government and has not commented on the new accusations.