How much firmer the claim got
According to CNBC, White House adviser Michael Kratsios wrote on X on Wednesday that he has information that Moonshot AI distilled Anthropic's Fable model while developing K3, alleging the company built a sophisticated internal platform to run large-scale distillation against US models and could switch between access methods to avoid detection.[1]
What changed is the level of detail, not the evidentiary status. On 24 July I argued in this column that FLUX 3 and K3 carried different burdens of proof and that the K3 claim remained open as a question of access and timing. This week's statement adds a described mechanism to that question but does not say what the information consists of, who examined it, or in what proceeding it was set out. Naming a method is not showing that the method was used.[1], [2]
The only quantified account belongs to another period
The report says Anthropic stated in February that Claude's capabilities were being distilled at industrial scale by DeepSeek, Moonshot and MiniMax through roughly 24,000 fake accounts generating 16 million exchanges. That is the only quantified public account available, but it covers a period months before K3 and names three separate companies.[1]
Account-level measurement of that kind can show access and volume; it cannot show what a model was trained on. Closing the distance between the two would take an examination establishing that the outputs entered the training data. The same report carries a competing account: the joint letter published on Friday by more than twenty companies describes distillation — using one model's outputs to train or improve another — as a widely used technique, and Shashi Bellamkonda of Info-Tech Research Group notes that Nvidia used distillation while training its Llama Nemotron models. The existence of a competitive model is not proof that it was distilled from one particular source.[1]
What would close the gap
The report describes no lawsuit or regulatory proceeding over the K3 allegation. OpenAI and Anthropic ban distillation in their terms of service, which raises a contract question rather than establishing copying. Two kinds of document would settle it: a filing or regulatory action with exhibits attached, or an independent examination with access to K3's training data. If neither becomes public by the end of the year, the allegation stays a political statement, and repeating it will not make it stronger.[1]