Anthropic Accuses DeepSeek, Moonshot AI, and MiniMax of Industrial-Scale Claude Model Theft Using 24,000 Fake Accounts

Anthropic dropped a bombshell on the artificial intelligence industry Monday, publicly accusing three prominent Chinese AI laboratories — DeepSeek, Moonshot AI, and MiniMax — of orchestrating coordinated, industrial-scale campaigns to siphon capabilities from its Claude models using tens of thousands of fraudulent accounts. The San Francisco-based company said the three labs collectively generated more than 16 million exchanges with Claude through approximately 24,000 fake accounts, all in violation of Anthropic's terms of service and regional access restrictions. The campaigns, Anthropic said, are the most concrete and detailed public evidence to date of a practice that has haunted Silicon Valley for months: foreign competitors systematically using a technique called distillation to leapfrog years of research and billions of dollars in investment.

"These campaigns are growing in intensity and sophistication," Anthropic wrote in a technical blog post published Monday. "The window to act is narrow, and the threat extends beyond any single company or region. Addressing it will require rapid, coordinated action among industry players, policymakers, and the global AI community." The disclosure marks a dramatic escalation in the simmering tensions between American and Chinese AI developers — and it arrives at a moment when Washington is actively debating whether to tighten or loosen export controls on the advanced chips that power AI training. Anthropic, led by CEO Dario Amodei, has been among the most vocal advocates for restricting chip sales to China, and the company explicitly connected Monday's revelations to that policy fight. To understand what Anthropic alleges, it helps to understand what distillation actually is — and how it evolved from an academic curiosity into the most contentious issue in the global AI race. At its core, distillation is a process of