AI giant Anthropic has said it plans to become a public company in the US. The company behind the popular chatbot Claude said on Monday it had filed confidential paperwork with the US Securities and Exchange Commission in order to make an initial public offering (IPO) this year. Once public, people will be able to buy and trade shares in the firm on the stock market, though the company said the price and number of shares to be offered "have not yet been set". Anthropic's stock market plans,