OpenAI, the company behind ChatGPT, filed a confidential draft S-1 registration statement with the U.S. Securities and Exchange Commission (SEC) on Monday, positioning itself for a potential public offering that could rank among the largest in market history.
Key Takeaways
- OpenAI filed a confidential S-1 with the SEC on June 8, 2026, at an $852 billion post-money valuation with no confirmed IPO date.
- The filing follows Anthropic’s June 1 confidential S-1 and a May 2026 jury win clearing OpenAI’s Public Benefit Corporation restructuring.
- Goldman Sachs and Morgan Stanley are lined up as underwriters, with a September 2026 debut reported but not confirmed by OpenAI.
OpenAI Confirms the Filing
The company acknowledged the submission in a statement that circulated widely across social media. “We recently submitted a confidential S-1,” OpenAI said. “We expect it to leak, so we’re just announcing it.” The company added that the filing should not be read as a sign that a listing is near, stating it “has not decided on timing yet” and may stay private for some time while retaining the option to list sooner if conditions allow.
The move came one week after Anthropic filed its own confidential S-1 on June 1, 2026, making the two dominant U.S. AI developers simultaneously moving toward public markets.
Path to This Point
OpenAI launched in 2015 as a nonprofit. It added a capped-profit subsidiary in 2019, then restructured again into a Public Benefit Corporation to support larger capital raises. That restructuring faced a legal challenge from co-founder Elon Musk, alleging mission drift. A jury ruled in OpenAI’s favor in May 2026, clearing what had been one of the most prominent obstacles to a public offering.
In March 2026, OpenAI closed a $122 billion funding round at an $852 billion post-money valuation. Participants included Softbank, Amazon, Nvidia, and Microsoft. Cumulative private funding now exceeds $170 billion.
Revenue and Burn Rate
OpenAI is generating roughly $2 billion per month in revenue, with approximately $13.1 billion in revenue reported for the prior year. ChatGPT claims more than 900 million weekly active users and around 50 million paying consumer subscribers.
The company is not profitable. It continues to burn capital at a high rate due to compute infrastructure, data centers, and model training costs. Analysts project heavy losses continuing for the foreseeable future, with free-cash-flow breakeven potentially years away.
IPO Mechanics and Timeline
A confidential S-1 filing allows the SEC to review the draft privately. No public timeline is set once the confidential submission is made. The standard sequence runs: SEC review, public S-1 filing, roadshow, pricing, and listing. Goldman Sachs and Morgan Stanley are reported as lead underwriters.
Earlier reports had pointed to a possible September 2026 debut, but OpenAI’s statement leaves that window open rather than confirmed.
Competitive Context
Anthropic, valued at roughly $965 billion in its most recent private round, filed its own confidential S-1 a week earlier. SpaceX filed earlier still, targeting a multi-trillion-dollar valuation. Together, these companies represent the largest cluster of high-value private companies testing public-market appetite simultaneously.
OpenAI faces competition from Google’s Gemini, Elon Musk’s xAI, Meta, and a growing field of Chinese AI developers. Public investors will scrutinize margins, infrastructure costs, and the long-term economics of building and operating frontier AI models at scale.
OpenAI’s ‘Built to Benefit Everyone’ Manifesto
Alongside the S-1 filing, OpenAI published a manifesto-style document outlining its long-term vision, including a stated goal of giving every person on Earth access to a personal AGI system. The company also disclosed an internal target: by March 2028, it believes AI systems could be handling a significant portion of its own research workload alongside human researchers. OpenAI framed the IPO not as an end goal but as the start of what it called a third phase, one focused on making advanced AI affordable and accessible at scale rather than concentrating capability among a small number of institutions.
What Investors Should Watch
The public S-1, once filed, will disclose audited financials, detailed risk factors, and ownership structure. That document will be the first time investors can assess OpenAI’s books with regulatory-grade transparency. Until then, the company remains on a confidential track with no committed listing date.
