Anthropic has raised $65 billion in a new funding round that values the company at $965 billion after investment.
This places the artificial intelligence firm among the world’s most valuable private technology companies ahead of a possible stock market debut.
The Series H round drew backing from investment firms including Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, Capital Group, Coatue and D1 Capital Partners.
Investors such as Baillie Gifford, Blackstone, Brookfield, DST Global and Fidelity Management & Research also joined the round.
The funding package also includes $15 billion in previously committed investments from large cloud companies, including $5 billion from Amazon announced earlier this year.
Samsung, SK Hynix and Micron joined the round as strategic infrastructure partners.
With the funding, Anthropic plans to expand computing capacity, grow its Claude products and continue research into safety and interpretability.
The company announced the funding on the same day it released Claude Opus 4.8, its latest model focused on coding, advanced reasoning and what it described as stronger honesty and self-correction abilities.
Anthropic has expanded rapidly since its last fundraising round in February, helped by rising demand from business customers using Claude Code and other enterprise tools. The company said its annualised revenue run rate passed $47 billion earlier this month.
“Claude is increasingly indispensable to our growing global community of customers, and we work tirelessly to make tools like Claude Code and Cowork more helpful, more powerful, and more adaptable to their needs,” said Krishna Rao, chief financial officer of Anthropic.
“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.”
The company also said it recently signed new agreements with Amazon, Google, Broadcom and SpaceX to secure more computing power as demand for Claude grows.
Under those agreements, Amazon will provide up to five gigawatts of additional capacity, while Google and Broadcom will supply next-generation TPU infrastructure. SpaceX will also provide access to GPU capacity through its Colossus systems.
Anthropic revealed that Claude is now available across Amazon Web Services, Google Cloud and Microsoft Azure, with AWS remaining its main cloud and training partner.
“Claude’s latest advancements have driven large-scale adoption among the world’s most demanding organisations. This momentum positions Anthropic to lead the next phase of AI innovation and capture the enormous opportunity ahead,” said Brad Gerstner, founder and CEO of Altimeter Capital.
Marc Stad, managing partner at Dragoneer, said, “The technological progress we are seeing right now is breathtaking. And we believe that we are still in the earliest days of both the development and commercialisation of this technology.”
Neil Mehta, founder and managing partner at Greenoaks, added, “Rarely has a company’s culture, mission, and commercial momentum reinforced each other so completely. We are honoured to deepen our partnership.”
With competition increasing among leading artificial intelligence companies seeking more users, stronger computing infrastructure and fresh investment before entering public markets, Anthropic’s latest raise will strengthen its place.
Earlier this year, OpenAI secured a funding round valued at $852 billion after investment, while Elon Musk’s xAI, now merged with SpaceX, has reportedly targeted a $2 trillion valuation ahead of a future public offering.
