Tech giant OpenAI files for US initial public offering

OpenAI, the maker of ChatGPT, has confidentially filed for a U.S. initial public offering (IPO), joining rival Anthropic in a push towards the stock market. The company did not disclose the size or timeline, but Reuters reports it is targeting a valuation of up to $1 trillion. OpenAI recently raised $110 billion from backers including SoftBank, Amazon, and Nvidia, and has over 900 million weekly active ChatGPT users. The IPO comes amid an AI boom, with SpaceX and Anthropic also pursuing historic stock market debuts.