Artificial intelligence startup Anthropic has announced a massive $65 billion Series H funding round, pushing its post-money valuation to $965 billion and making it one of the most valuable private AI companies in the world. The company confirmed the development in an official statement released on May 28.
The funding round was led by major investors including Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital. According to reports, the latest raise places Anthropic ahead of rival OpenAI in terms of valuation, further intensifying the competition within the rapidly expanding AI industry.
In its official announcement, Anthropic said it had “raised $65 billion in Series H funding,” valuing the company at “$965 billion post-money.”
The company stated that the new capital will be used to expand frontier AI research, strengthen infrastructure capabilities, and scale the adoption of its AI assistant Claude across enterprise use cases. Anthropic has increasingly positioned itself as a major player in enterprise AI, particularly in coding, workplace productivity, and long-context AI systems.
The company’s valuation growth has also been unusually rapid. Anthropic was reportedly valued at $380 billion during its Series G funding round in February 2026, meaning its valuation has more than doubled within a few months.
Anthropic was founded in 2021 by former OpenAI executives and researchers, including siblings Dario Amodei and Daniela Amodei. The company has built its reputation around AI safety-focused development while competing aggressively in the frontier AI race against companies like OpenAI, Google DeepMind, and xAI.
“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.”
