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OpenAI files for US IPO after Anthropic as AI giants head to public markets- Moneycontrol.com

M
Jun 9, 2026 · 01:55

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 exposure to the artificial intelligence boom.

OpenAI did not disclose the size or terms of the offering, and said a timeline has not yet ​been determined. "It may be a while because there are things we want to do that are likely easier as a private company," it said ‌in a statement.

Reuters had reported that the AI giant is targeting a valuation of up to $1 trillion in a stock market debut that could come as early as September.

At that valuation, OpenAI would set the stage for a trio of trillion-dollar valuation companies debuting rapidly and is seen as the most consequential test of investor appetite for high-growth technology stocks in the recent decade.

Elon Musk's SpaceX was the first off ​the block, filing for an IPO that would rank as the largest in history if completed, with the company pursuing a $75 billion offering at a $1.75 trillion ​valuation.

On prediction markets, where traders wager on the outcome of future events, most participants had expected OpenAI to file for an IPO ⁠before Anthropic.

The IPOs from Anthropic and OpenAI would crystallize a transformative period for the technology industry and global markets, with artificial intelligence rapidly emerging as the ​defining investment theme of the decade.

OpenAI said earlier this year that it was raising $110 billion at an $840 billion valuation from a roster of heavyweight backers including SoftBank (9984.T), Amazon (AMZN.O), and Nvidia (NVDA.O).

At ​the time, it also disclosed that ChatGPT had more than 900 million weekly active users and over 50 million consumer subscribers.

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