INTRODUCTION

The number is $852 billion.

That is what ChatGPT’s parent company, OpenAI, was valued at in its last private funding round. And this week, it took the most significant step toward becoming a public company that anyone can invest in — filing confidentially with the United States Securities and Exchange Commission to begin the IPO process.

CNBC confirmed on Wednesday, May 21, 2026, that OpenAI is working with Goldman Sachs and Morgan Stanley — two of the most powerful investment banks in the world — to prepare its IPO prospectus. The filing could happen as early as Friday, May 22. A public market debut is being targeted as early as September 2026.

If the listing goes through at the valuation being discussed — above $1 trillion — it would be one of the largest IPOs in the history of financial markets.

For ordinary investors who have watched the AI revolution unfold from the sidelines, this is the moment they have been waiting for. For the AI industry, it is a test that no model can run for you.

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BACKGROUND

To understand what OpenAI’s IPO means, you have to understand what kind of company is actually going public.

OpenAI was founded in December 2015 as a nonprofit. Its founding mission was explicit: develop artificial intelligence safely and ensure its benefits are distributed broadly to humanity, not captured by a single company or investor. Elon Musk, Sam Altman, Greg Brockman, and others put their names and money behind that mission.

For the first several years, OpenAI operated as a research lab. It published papers. It released tools for free. It existed at the margins of the tech industry’s awareness.

Then came GPT-3 in 2020 — and the world started paying attention. Then DALL-E. Then ChatGPT in November 2022 — which became the fastest-growing consumer application in history, reaching 100 million users in two months. Then GPT-4. Then a $10 billion investment from Microsoft. Then another round. And another.

By early 2026, the picture looked very different from the nonprofit research lab of 2015.

OpenAI had restructured into a capped-profit company. It had taken $122 billion in a single funding round — the largest venture funding round in history — at an $852 billion post-money valuation. Amazon committed $50 billion. Nvidia committed $30 billion. SoftBank committed $30 billion. These are not small bets.

The company was generating $2 billion in revenue per month by early 2026. Annualized, that is $24 billion in revenue — from a company that did not have a commercial product four years ago.

CFO Sarah Friar confirmed in January 2026 that OpenAI’s annualized revenue rate had exited 2025 above $20 billion. The growth trajectory was not slowing. It was accelerating.

And then, on May 20, 2026, a California jury took less than two hours to unanimously reject Elon Musk’s entire lawsuit against OpenAI — a case that had hung over the company’s IPO plans like a legal cloud. With that cloud gone, the last major structural obstacle to going public had been removed.

The decision to file came quickly.

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MAIN UPDATE

Here is exactly what has happened and what it means.

CNBC confirmed on Wednesday, May 21, 2026 — citing a source familiar with the matter who asked not to be named — that OpenAI is preparing to confidentially file a draft of its IPO prospectus as soon as Friday, May 22, 2026.

Goldman Sachs and Morgan Stanley are the lead banks advising on the process. Both firms declined to comment publicly. OpenAI’s response, through a spokesperson, was four words: “Our focus remains on execution.”

The filing being prepared is a confidential S-1 — a draft prospectus submitted to the SEC under the JOBS Act, which allows large private companies to begin the regulatory review process without immediately making their financial details public. The confidential filing does not mean the IPO is happening this week. It means the clock has started. Once the SEC reviews the draft and provides comments, OpenAI will file a public S-1 — and that is when the full financial picture becomes visible to everyone.

The target date for the actual public debut is as early as September 2026.

The valuation being discussed in financial circles is above $1 trillion — higher than the $852 billion private valuation from the March 2026 funding round. Whether the market will support that number is the central question every investor and analyst is now trying to answer.

Here are the financial facts that are publicly known as of today.

OpenAI raised $122 billion in its most recent funding round — the largest single venture capital raise in history. The post-money valuation from that round was $852 billion. The company has stated it was generating $2 billion in monthly revenue by early 2026. Annualized, that implies approximately $24 billion in revenue — but the company has not released audited annual figures publicly. The actual 2025 full-year revenue was estimated at approximately $13.1 billion, reflecting growth concentrated in the second half of the year.

The company’s costs are also enormous. OpenAI is paying Anthropic’s competitor structure interesting money — and separately, compute costs across its infrastructure partners run into billions per year. The company has not confirmed when it expects to be profitable, though CFO Sarah Friar has said it is working toward that milestone.

For context on the competitive pressure: Anthropic told investors this week that it is projecting $10.9 billion in Q2 2026 revenue alone — and is on track for its first quarterly operating profit ever. Anthropic is also considering a public listing, with October 2026 the most frequently cited window. The race between OpenAI and Anthropic to file first is not just a financial decision — it is a strategic one. Whoever goes public first sets the valuation comparable. Whoever goes second will be measured against that baseline.

OpenAI is moving first.

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IMPACT ANALYSIS

OpenAI going public changes things — for investors, for the AI industry, for every person who uses ChatGPT.

For individual investors, the immediate question is simple: can I buy OpenAI stock? Right now, the answer is no. The confidential S-1 filing is the first step, not the last. A public S-1 must still be filed. The SEC must complete its review. Roadshows must happen. A pricing date must be set. The earliest realistic window for retail investors to purchase OpenAI shares is September 2026 — and that assumes no delays.

For institutional investors — pension funds, mutual funds, hedge funds — the OpenAI IPO is one of the most significant events they have been preparing for in years. The company’s growth rate, market position, and the sheer scale of AI adoption make it a generational investment opportunity. The question is whether the valuation at IPO will leave room for returns — or whether the $1 trillion entry price is already too high.

For the AI industry, the IPO raises the stakes for every competitor. A publicly traded OpenAI will face quarterly earnings pressure that a private company does not. It will need to demonstrate not just revenue growth but a path to profitability. That pressure could change how OpenAI prioritizes products, pricing, and research — possibly making it more commercial and less experimental than it has been as a private company.

For users of ChatGPT, the impact is indirect but real. A public company answerable to shareholders is a different beast from a research lab with a mission statement. Decisions about data, privacy, product features, and safety will increasingly be made with an eye on the quarterly numbers. That is not automatically bad — but it is different.

There is also a number in the IPO story that most casual observers have missed. Anthropic — OpenAI’s most direct competitor — is paying SpaceX $1.25 billion per month for GPU compute. That detail, revealed in SpaceX’s own IPO filing this week, illustrates just how expensive it is to run frontier AI systems at scale. OpenAI’s compute costs are in the same ballpark. Both companies need massive, continuous revenue just to keep the lights on.

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FUTURE OUTLOOK

The OpenAI IPO will not be the end of this story. It will be the beginning of a new chapter.

Once public, OpenAI will be required to disclose quarterly financial results, executive compensation, legal risks, and operational details that have never been public before. That transparency will change how the company is perceived — and how it competes.

The most immediate question after listing is valuation sustainability. CNBC published a detailed analysis this week warning that cheap AI could derail both OpenAI’s and Anthropic’s IPO valuations. The concern is specific: Chinese AI models now account for 60% of all AI usage on OpenRouter, a major API platform, according to data published this week. These models are significantly cheaper than OpenAI’s and Anthropic’s offerings, and in many use cases, the quality difference is narrowing. If enterprise customers shift to cheaper models — even partially — the revenue growth that justifies a $1 trillion valuation becomes harder to defend.

The response from OpenAI has been to accelerate its agentic AI products — tools like ChatGPT Agent that do more than answer questions, but take actions on behalf of users. The theory is that agentic AI creates stickier, higher-value use cases that are harder to replace with cheaper alternatives.

Whether that theory holds up under public market scrutiny, quarterly by quarterly, is the test that no model can run in advance.

For investors in India considering the OpenAI IPO, the practical reality is straightforward. Retail investors in India cannot directly purchase shares in a US IPO without an international brokerage account. Platforms like IBKR, Vested, or Winvesta allow Indian investors to participate in US markets. Demand from India for ChatGPT-related investment will likely be significant — India has one of the highest rates of ChatGPT usage outside the United States.

The IPO window is September 2026, at the earliest. Watch for the public S-1 filing — that is when the full financial picture becomes available, and when the real due diligence begins.

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EXPERT INSIGHTS

• CNBC (May 21, 2026, citing a confidential source): Confirmed OpenAI is preparing to file a draft IPO prospectus confidentially with the SEC “as soon as Friday,” working with Goldman Sachs and Morgan Stanley as lead advisers. The company is targeting a public debut “as early as September 2026.”
• OpenAI spokesperson (official response, May 21, 2026): “Our focus remains on execution.” The company declined to comment on the specific timeline or financial terms being discussed.
• Sarah Friar, CFO of OpenAI (January 2026 blog post and CNBC interview): Confirmed OpenAI’s annualized revenue rate had exited 2025 above $20 billion, and said it is “good hygiene” for a company of OpenAI’s size to “look and feel and act like a public company.” She declined to confirm a specific IPO timeline.
• Investing.com analysis (May 21, 2026): Reported that OpenAI is targeting a public listing valuation “above $1 trillion” — significantly above the $852 billion post-money valuation from its March 2026 funding round. The gap between private valuation and IPO target reflects expected market demand.
• CNBC analysis (May 22, 2026): Published a detailed warning that “cheap AI could derail both $800B+ IPO valuations” — pointing to Chinese model pricing and OpenRouter usage data showing Chinese AI at 60% of global API usage as the key risk factor for both OpenAI and Anthropic’s public market ambitions.
• Polymarket prediction market (May 22, 2026): After OpenAI’s confidential S-1 news, the market-implied probability of OpenAI listing before Anthropic jumped to 85%. Anthropic’s odds of listing first fell to 28%.
• TECHi financial analysis: Noted that “OpenAI forward-looking revenue figures are estimates derived from the $20 billion year-end 2025 ARR base; they are not derived from a filed prospectus” — a reminder that until the public S-1 lands, all revenue figures are company-provided estimates, not audited financials.

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KEY TAKEAWAYS

• CNBC confirmed on May 21, 2026 that OpenAI is preparing to confidentially file its IPO prospectus with the SEC as early as Friday, May 22 — working with Goldman Sachs and Morgan Stanley as lead advisers.
• OpenAI’s last private valuation was $852 billion, from a $122 billion funding round — the largest single venture capital raise in history. The IPO target valuation is above $1 trillion.
• The company is generating approximately $2 billion in monthly revenue as of early 2026, with annualized revenue above $24 billion. Full-year 2025 revenue was estimated at $13.1 billion, with growth concentrated in the second half.
• A public market debut is being targeted as early as September 2026 — but retail investors cannot buy shares until after the public S-1 is filed and the IPO pricing is confirmed.
• Elon Musk’s lawsuit against OpenAI was unanimously rejected by a California jury on May 20, 2026 in under two hours — removing the last major legal obstacle to the IPO.
• Anthropic is also racing to go public, targeting October 2026. The company that files first sets the valuation comparable — giving OpenAI a strategic reason to move quickly.
• The biggest risk to the IPO valuation: Chinese AI models now account for 60% of all AI API usage on OpenRouter, offering similar quality at significantly lower prices than OpenAI’s products.
• Indian retail investors who want to participate in the OpenAI IPO will need an international brokerage account — platforms like IBKR, Vested, or Winvesta allow access to US market listings.

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CONCLUSION

For years, ChatGPT was the product everyone used and no one could invest in.

That is about to change.

The confidential S-1 filing confirmed this week means the clock has officially started. Goldman Sachs and Morgan Stanley are in the room. The SEC is about to start reading the numbers. And if everything goes to plan, by September 2026, anyone with a brokerage account will be able to own a piece of the company that changed how the world uses artificial intelligence.

Whether the price will be right is the question only the public prospectus can answer. A $1 trillion valuation for a company with $24 billion in revenue and enormous compute costs is a bet on future growth, not current profitability.

But then again — people said the same thing about Amazon in 1997.

What do YOU think — would you buy OpenAI stock at a $1 trillion valuation? Drop your thoughts below. Share this with one person who has ever asked about investing in AI. Follow AI Today’s News to stay ahead every day.