Anthropic has closed a massive $65 billion funding round at a $965 billion post-money valuation, positioning the AI company for what could be its final private fundraising before going public. The Series H round drew participation from major venture firms including Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, Capital Group, Coatue, and D1 Capital Partners. The round also attracted institutional heavyweights like Baillie Gifford, Blackstone, Brookfield, D.E. Shaw Ventures, DST Global, and Fidelity Management & Research, along with strategic chip partners Samsung, SK Hynix, and Micron. A portion of the funding—$15 billion—includes previously committed investments, including the $5 billion Amazon announced in April.
The funding comes as Anthropic continues to show explosive growth. The company disclosed that its run rate revenue exceeded $47 billion earlier this month, with The Wall Street Journal reporting that Anthropic expects a 130% revenue surge that would bring it to its first operating profit. Brad Gerstner, founder and CEO of Altimeter Capital, said in a statement that "Claude's latest advancements have driven large-scale adoption among the world's most demanding organizations," adding that the momentum positions Anthropic "to lead the next phase of AI innovation."
Anthropic plans to deploy the capital toward advancing its safety and interpretability research, expanding compute infrastructure to meet growing demand for its Claude AI assistant, and scaling its products and partnerships. The funding announcement coincided with the release of Claude Opus 4.8, which the company says offers improved capabilities in agentic tasks, advanced coding, and features emphasizing honesty and self-correction. The startup is also reportedly preparing to more broadly launch models comparable to its powerful cybersecurity model called Mythos, which has only been released in limited fashion due to safety concerns.
The company has seen particularly strong adoption among enterprise customers using Claude Code, its AI-powered coding tool. According to TechCrunch, investor demand was so intense that one institutional investor pledged as much as $5 billion just to secure a meeting with Anthropic CFO Krishna Rao. Earlier reports indicated that the company was initially targeting a $50 billion round, but investor enthusiasm pushed the final total significantly higher.