OpenAI files confidential IPO papers after Anthropic (opens in new tab)

OpenAI said Monday it confidentially submitted a draft S-1 registration statement to the U.S. Securities and Exchange Commission, a preliminary step toward a possible initial public offering by the San Francisco company behind ChatGPT. The company did not disclose the planned offering size, share price or listing date, and said it had not decided when to proceed. OpenAI's filing followed Anthropic’s June 1 disclosure that it had confidentially filed to go public, while SpaceX has started an I...