US accuses Kimi K3 AI model maker Moonshot AI of 'stealing' Anthropic's Fable model

The White House has accused Chinese startup Moonshot AI of stealing from Anthropic to build Kimi K3, the open-weight model that knocked tech stocks around last week. Michael Kratsios, who runs the White House Office of Science and Technology Policy, posted on X on Wednesday that the US government has information showing Moonshot distilled Anthropic's Fable model to create K3. The more damning part of his claim is what came next: Moonshot allegedly built an internal platform specifically to run this at scale, one that could switch between different ways of accessing US models so the activity stayed invisible.Kratsios stacked a second charge on top. He said Moonshot acquired servers fitted with Nvidia GB300 chips and used them in Thailand, likely for training. Those chips belong to the Blackwell generation, which Washington does not allow Chinese firms to buy anywhere in the world.