The OpenAI Anthropic IPO race now defines the biggest financial moment in artificial intelligence history. Both frontier labs filed confidential S-1 registration statements with the SEC in June 2026, setting the stage for simultaneous public offerings that could each shatter records. No two rival technology companies have ever raced to Wall Street at valuations this size, this close together, at this speed.
Background on the OpenAI Anthropic IPO Race
Anthropic fired the starting gun first. The company raised $65 billion in a Series H round led by Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, and others, pushing its post-money valuation to $965 billion. Days later, on June 1, 2026, Anthropic filed its confidential IPO prospectus with the SEC. OpenAI followed on June 8. The ChatGPT maker submitted its own draft S-1, last valued at $852 billion after closing a $122 billion funding round in March — the largest single funding round in Silicon Valley history. A third giant, SpaceX, simultaneously ran its own IPO roadshow at a $1.75 trillion valuation, creating an AI-and-tech listing cluster Wall Street has not seen since the dot-com era.
Key Details of the OpenAI Anthropic IPO Race
OpenAI works with Goldman Sachs and Morgan Stanley as lead underwriters, targeting a listing window as early as September 2026. The company generates $2 billion in monthly revenue, growing four times faster than Alphabet and Meta did at comparable stages. Enterprise contracts now account for more than 40% of that revenue. However, OpenAI remains loss-making. Its CFO Sarah Friar publicly acknowledged the company is not yet profitable and carries enormous infrastructure costs. Analysts at HSBC estimate OpenAI may need over $207 billion in additional capital through 2030. Anthropic paints a brighter near-term picture. Its annual recurring revenue exploded from $1 billion in early 2025 to $47 billion by May 2026 — a 47-fold surge in 18 months. The company targets its first profitable quarter in Q2 2026, projecting approximately $559 million in operating income on $10.9 billion in revenue.
Industry Impact
The dual filings send shockwaves across every corner of the technology sector. Investment bankers privately warn both companies that whoever lists first gains a structural advantage. The first mover sets pricing terms, captures the largest pool of institutional capital, and defines how analysts categorize the entire AI sector. Secondary market data already reveals the tension. Anthropic surged to a $1 trillion valuation on Forge Global, outpacing OpenAI at roughly $880 billion. Anthropic’s secondary market appreciation runs at 123% year-to-date versus OpenAI’s 11.3%. Meanwhile, Crunchbase data shows AI captured 80% of all global venture funding in Q1 2026 — $242 billion out of $300 billion total. OpenAI and Anthropic alone absorbed 43% of all global startup capital in the first half of 2026, according to a Crunchbase H1 report. This concentration of capital raises pointed questions about market saturation and whether public investors will absorb two near-simultaneous trillion-dollar offerings.
What Comes Next for the OpenAI Anthropic IPO Race
Both companies still carry significant risk heading into public markets. OpenAI faces active legal challenges, and its full S-1 will disclose audited financials for the first time. Analysts at FutureSearch peg OpenAI’s post-IPO market cap closer to $860 billion — nearly matching its last private valuation, leaving limited upside for public investors. Anthropic carries its own complexities. The company pays SpaceX $1.25 billion per month for compute capacity through May 2029, and litigation against the Trump administration over its Pentagon blacklisting remains unresolved. Reuters reported in late June that OpenAI now considers waiting until 2027 to go public, citing internal milestones easier to complete as a private company. Anthropic, by contrast, hired UK law firm Freshfields to accelerate its IPO advisory work. Timing remains fluid and fiercely competitive on both sides.
Conclusion
The OpenAI Anthropic IPO race rewrites the rules of how frontier AI companies access capital. For the first time, retail investors and index funds will gain direct exposure to the two most powerful private AI labs on earth. The public S-1 filings will force both companies to disclose revenue, margins, and risk factors under full SEC scrutiny — ending years of speculation. Whether their sky-high private valuations survive that transparency test is the defining question of the 2026 technology market. The answer arrives in months, not years.
Related: OpenAI Halves AI Inference Costs in Software Breakthrough
Originally reported by TechCrunch. Analysis by the FastCustomAI Editorial Team.