Hugging Face ‘numbat’ repo claims leaked Anthropic model, but the weights look synthetic

A Hugging Face repository under the username "numbat" claimed to contain leaked weights of an Anthropic model, but analysis suggests the weights appear synthetic rather than authentic, according to Crypto Briefing. The incident underscores verification challenges facing large-scale AI model hosting platforms, where unverified uploads can quickly attract attention and potentially spread misinformation. No specific model size, parameter count, or download figures were disclosed in the report, and Anthropic has not been confirmed as the source of the weights. The episode highlights reputational and operational risks for platforms like Hugging Face, which hosts hundreds of thousands of models across open-source communities. Watch for whether Anthropic or Hugging Face issues formal statements, and whether the repo is removed or validated by independent researchers.