Anthropic, the artificial intelligence startup behind the Claude chatbot, has confidentially filed for an initial public offering, positioning itself to become one of the largest technology listings in history and escalating its rivalry with OpenAI as the race for AI dominance accelerates.
The filing, announced Monday, came sooner than many investors expected. The company said the submission to the U.S. Securities and Exchange Commission remains under review and that no final decisions have been made regarding the number of shares to be sold or the offering price.
"This gives us the option to go public after the SEC completes its review," Anthropic said in a statement. "The number of shares to be offered and the price have not yet been set."
The move follows a landmark fundraising round that vaulted Anthropic to the top of the AI startup rankings. Just days before the IPO filing, the company completed a Series H financing round that raised $65 billion and valued the firm at approximately $965 billion, according to Axios.
The financing round was led by major investors including Altimeter Capital, Dragoneer, Greenoaks and Sequoia Capital. The valuation places Anthropic within striking distance of the $1 trillion threshold, a level previously associated only with the world's largest public technology companies.
NBC News reported that Anthropic had originally been expected to pursue a public listing later in the year, making the earlier-than-anticipated filing a notable development in the battle among leading AI firms for capital, customers and market share.
Anthropic's latest funding round included substantial commitments from infrastructure and cloud-computing partners. According to reports, the package includes approximately $15 billion in previously committed investments, including $5 billion from Amazon, one of the company's largest strategic backers.
The company said proceeds from the recent fundraising will be directed toward expanding computing capacity, scaling its Claude family of AI products and continuing research into AI safety and interpretability, two areas that have become central to Anthropic's corporate identity.
Chief Financial Officer Krishna Rao said the company is experiencing unprecedented demand for its products.
"This funding will help us serve the historic demand we are experiencing, stay at the research frontier and bring Claude to more of the places where work happens," Rao said in a company statement.
Anthropic also disclosed that its annualized revenue run rate surpassed $47 billion earlier this month, underscoring the rapid commercialization of generative AI technologies. The figure reflects growing enterprise adoption as businesses increasingly integrate AI systems into customer service, software development and workplace productivity.
Founded in 2021 by former OpenAI executives, including siblings Dario Amodei and Daniela Amodei, Anthropic has emerged as one of the most influential companies in the sector. Its Claude chatbot competes directly with OpenAI's ChatGPT, while also challenging offerings from Google and Meta.
