At present, a multitude of investors are eagerly vying to snap up shares in artificial intelligence firms. This week, Anthropic posted a warning on its official website, indicating that numerous private equity and secondary market investment platforms are operating without authorization. These platforms are falsely asserting that they can enable the trading of Anthropic's shares. The company explicitly identified several platforms, such as Open Doors Partners, and emphasized that any share or equity interest sales or transfers initiated by these entities are null and void. Such transactions will neither be acknowledged nor recorded in the company's shareholder register. There are rumors that Anthropic's most recent funding round has pegged the company's valuation at a staggering $900 billion, reflecting exceptionally high market enthusiasm for subscription. Presently, its shares are among the most difficult to acquire.