Anthropic Files for IPO, Eclipsing OpenAI in Valuation Race
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The Race to the Public Market
The long-simmering tension between the titans of generative AI has shifted from the lab to the balance sheet. Anthropic officially notified the U.S. Securities and Exchange Commission (SEC) on Monday that it has submitted a draft registration statement to begin the process of going public.
The move is a strategic strike in the ongoing rivalry with OpenAI. While both companies have flirted with the idea of an IPO for months, Anthropic has managed to seize the first-mover advantage in the public filing process. More strikingly, the filing follows a massive fundraising round that has propelled Anthropic to a post-money valuation of $965 billion, officially leapfrogging OpenAI’s $852 billion valuation to become the most valuable startup in the world.
For now, the granular details of the business remain shielded. Anthropic opted for a confidential submission, a common tactic for high-growth tech firms that allows them to iron out financial disclosures and risk factors with regulators before the general public—and their competitors—can scrutinize the numbers. This means the market is still waiting on the specific breakdown of Anthropic’s burn rate, executive compensation packages, and the precise nature of its revenue streams.
A Complex Web of Infrastructure and Alliances
The timing of the filing is not coincidental. It arrives just as the broader AI ecosystem enters a phase of intense infrastructure consolidation. Most notably, the announcement comes less than two weeks before SpaceX is slated to launch its own IPO on June 12. The intersection of these two events reveals a deeper, more symbiotic relationship between the companies than previously acknowledged.
Industry sources and internal deal structures point to a massive operational partnership: Anthropic is currently paying SpaceX $15 billion annually to leverage SpaceX’s proprietary data center capabilities. This deal ensures that Claude, Anthropic’s flagship LLM, has the compute horsepower necessary to scale against Google’s Gemini and OpenAI’s GPT series. By securing this infrastructure, Anthropic has effectively decoupled its growth from the traditional cloud provider dependencies that have plagued other AI startups.
The Strategic Landscape
This IPO attempt occurs against a backdrop of legal and corporate volatility. OpenAI recently emerged victorious in a high-profile legal battle with Elon Musk, with a judge dismissing claims based on the statute of limitations. While OpenAI focused on legal defense and internal governance shifts, Anthropic focused on capital accumulation and infrastructure scaling.
The sheer scale of these valuations—approaching the trillion-dollar mark—suggests that investors are no longer betting on whether AI will be useful, but rather which entity will own the primary “operating system” of the coming decade. If Anthropic successfully navigates its debut, it could set a precedent for how AI labs transition from venture-backed research projects into permanent fixtures of the S&P 500.
Market Implications
Wall Street is likely to view the Anthropic IPO as a litmus test for the “AI bubble.” A successful listing at a near-trillion-dollar valuation would validate the aggressive spending on GPUs and data centers that has defined the last three years. However, the confidential nature of the filing suggests that Anthropic is keenly aware of the scrutiny it will face regarding its path to profitability.
As the June 12 SpaceX IPO looms, the combined market activity of these two entities could trigger a massive reallocation of capital within the tech sector, potentially starving smaller AI startups of the funding necessary to compete with these emerging giants.
