By Manya Saini and Pritam Biswas June 8 (Reuters) - OpenAI confidentially filed for a U.S. initial public offering recently, the ChatGPT maker said on Monday, joining rival Anthropic in a push toward a stock market listing as it looks to tap into insatiable investor demand for AI shares.

OpenAI has confidentially filed for an initial public offering, setting it up for what may be the most highly anticipated market debut in recent history and a massive payday for early investors.

Going public will allow OpenAI, valued at $852 billion, to inject more cash into its business as the AI race quickens.

OpenAI Confirms Confidential IPO Filing, With Big Stakes for the AI Boom

Two years ago, Apple and ChatGPT were partners. Now it looks like they're breaking up — and the evidence is in the new, AI-powered Siri.

OpenAI announced Monday afternoon that it has filed for an initial public offering of stock, just a week after its chief rival, Anthropic did the same.“We recently submitted a confidential S-1,” the ChatGPT maker said in a post on X,

A private family tragedy has become part of a much larger public reckoning over artificial intelligence. A Canadian mother’s lawsuit

The ChatGPT maker confidentially filed for an offering, but said ‘it may be a while’ before it goes public

OpenAI, the maker of ChatGPT, filed confidentially for an IPO, joining artificial intelligence rivals in tapping public markets to fund ambitious growth plans.

ChatGPT developer OpenAI has published a new security report alleging that, in essence, its own tools are being deployed against it. The company's June 2026 threat report is title