By Daily Mail (U.S.) | Created at 2026-06-09 15:22:26 | Updated at 2026-06-12 22:00:38
3 days ago
The maker of ChatGPT has filed for an initial public offering, joining rival Anthropic in a push toward a stock market listing as it looks to tap into insatiable investor demand for AI shares.
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," the tech titan said in a statement.
Reuters 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 completes the scene for a trio of trillion-dollar-valuation companies debuting this year, which together are seen as the most consequential test of investor appetite for high-growth technology stocks in decades.
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 $75billion offering at a $1.75trillion valuation.
Anthropic, the company behind the viral coding assistant Claude Code, said on June 1 it had confidentially filed for a US initial public offering, weeks after raising $65 billion in a funding round that valued it at $965 billion.
"OpenAI is keeping options open as Anthropic edged ahead with its filing after a monster funding round," said Michael Ashley Schulman, a partner at Cerity Partners.
On prediction markets, where traders wager on the outcome of future events, most participants had expected OpenAI to file for an IPO before Anthropic.
OpenAI boss Sam Altman, 41, married his younger lover Oliver Mulherin at an intimate ceremony in Hawaii last year
The IPOs of 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, whose boss Sam Altman, 41, married younger beau Oliver Mulherin at an intimate ceremony in Hawaii in 2024, said earlier this year that the company was raising $110 billion at an $840 billion valuation from a roster of heavyweight backers including SoftBank, Amazon and Nvidia.
At the time it also disclosed that ChatGPT had more than 900 million weekly active users and over 50 million consumer subscribers.
The IPO filing follows OpenAI renegotiating its partnership with Microsoft opens new tab, one of its earliest investors, which allowed the AI pioneer to forge new partnerships with firms such as Amazon.com and Alphabet.
This early investment, totaling $13 billion since 2019, helped pave the way for OpenAI's rapid rise and powered growth at Microsoft's Azure cloud-computing business.
In March, OpenAI said it was generating $2 billion in monthly revenue and growing roughly four times faster than companies that defined the internet and mobile eras, including Alphabet and Meta.
That compares with about $1 billion in quarterly revenue at the end of 2024.
OpenAI told investors during its most recent fundraising round that it did not expect to be profitable until 2030, according to a source familiar with the matter.
SpaceX, Elon Musk's rocket company, which has recently pivoted into providing massive AI compute infrastructure, filed for an IPO that would rank as the largest in history if completed
Yet the industry OpenAI launched has quickly become crowded and investors are scrutinizing whether the AI sector's meteoric rise can be sustained.
Anthropic has emerged as one of its biggest rivals, with soaring demand for Claude AI from software developers to handle their computer programming, and some firms deploying its top-shelf model Mythos to unearth vulnerabilities in their code.
While the blockbuster offerings could inject fresh momentum into the US IPO market, some bankers warn they might also soak up capital that could otherwise flow to smaller deals.
'What OpenAI does not want is for the public market capital to exhaust itself,' said Gil Luria, managing director of DA Davidson.
'Not only are SpaceX and Anthropic ahead of it in line to IPO, large public competitors could also raise tens of billions of dollars each in public market secondary issuances, as Google just completed last week.'
