The fast-growing artificial intelligence sector just marked another major milestone Monday, when Anthropic—the developer of the popular Claude chatbot—announced it has confidentially filed for an initial public offering with U.S. regulators. The move comes as generative AI firms across Silicon Valley race to secure massive capital to support the breakneck expansion of an industry that continues to reshape global technology.
A confidential initial filing allows a company to share its offering documentation with the U.S. Securities and Exchange Commission (SEC) for preliminary review, keeping sensitive financial performance and internal business data private until much later in the IPO process. In an official statement, Anthropic confirmed the filing and noted that the option to go public will become available once the SEC completes its review. The company added that the timeline, number of shares to be offered, and per-share price range will remain undetermined for now, with the final offering ultimately contingent on prevailing market conditions and other unforeseen factors.
The IPO announcement comes only days after Anthropic closed a massive new private funding round that raised $65 billion in fresh capital and pushed the company’s valuation to $965 billion. The figure puts the OpenAI rival just shy of the historic $1 trillion valuation threshold, cementing its status as one of the most valuable and influential players in the global generative AI landscape. Unlike many competitors that prioritize consumer-facing tools, Anthropic has built its market reputation by focusing on delivering enterprise-grade generative AI solutions to business clients, a strategy that has driven steady commercial growth. Currently, Anthropic’s valuation already outpaces that of OpenAI, which carried an $80 billion valuation in a March 2024 funding round and is also preparing its own imminent IPO filing.
Founded in 2021 by former OpenAI executives Dario Amodei, Daniela Amodei and a team of fellow industry veterans, Anthropic has carved out a distinct niche in the crowded AI race by positioning itself as a safety-first alternative to leading platforms. The company’s Claude large language model ecosystem, which includes the widely used Claude Code developer coding assistant, has helped push Anthropic’s projected annual revenue to $4.7 billion, a rapid climb for a company less than four years old.
Despite its strong commercial momentum, Anthropic has faced significant growing pains alongside its success. A global shortage of advanced AI chips and server infrastructure has left the company struggling to meet soaring market demand for its products, with a number of users recently voicing complaints that their usage quotas are exhausted far too quickly, forcing them to pay steep premium fees to continue accessing services.
To address its pressing computing capacity gap, Anthropic has struck a series of major supply deals in recent months, securing multiple gigawatts of additional computing power from industry leaders including Amazon, Google and Broadcom. Most notably, the company signed a surprise partnership last month with billionaire tech entrepreneur Elon Musk, who is currently locked in a high-profile legal battle with OpenAI and its founding leadership. Under the agreement, Musk will lease Anthropic access to his underutilized Colossus data centers, located in Memphis, Tennessee at the facility built for his xAI AI lab—creator of the Grok chatbot—for $1.25 billion per year.
Both Anthropic and OpenAI’s upcoming public offerings are set to follow SpaceX, another Musk-led company that absorbed xAI earlier this year, to public markets. SpaceX’s IPO is on track to begin trading as soon as June 12, with the company targeting a roughly $175 billion valuation in what will become the largest IPO in global history if it proceeds as planned.
Beyond infrastructure challenges, Anthropic is also navigating an ongoing legal conflict with the U.S. Department of Defense. The Pentagon recently designated Anthropic a supply chain risk after the company refused to grant the U.S. military unrestricted access to its core AI models. Anthropic has pushed back against the designation, calling it unconstitutional retaliation for the firm’s decision.