The company said Monday it has confidentially filed for a US initial public offering, joining rival Anthropic in lining up for a market debut as investors search...

June 8 : ChatGPT-maker OpenAI confidentially filed for a U.S. initial public offering on Monday, joining rival Anthropic in a push toward the stock market as investors seek…

ChatGPT-maker OpenAI has filed confidentially for an initial public offering, the company said Monday in a blog post. The filing comes a little more than