AI research and development firm Anthropic has closed a massive $13 billion Series F funding round, catapulting its post-money valuation to $183 billion. The company says the capital will be used to accelerate enterprise adoption of its AI products, expand its global footprint, and deepen its research into AI safety, an area central to its mission.
The round was co-led by Iconiq Capital, Fidelity Management & Research Company, and Lightspeed Venture Partners, according to a blog post from Anthropic. The funding attracted a wide array of heavyweight backers, including institutional investors, venture capital firms, sovereign wealth funds, private equity groups, and asset managers. Notable participants include Altimeter, Baillie Gifford, BlackRock, Blackstone, Coatue, D1 Capital Partners, Insight Partners, Ontario Teachers’ Pension Plan, and the Qatar Investment Authority, among others.
Krishna Rao, Anthropic’s Chief Financial Officer, stated:
We are seeing exponential growth in demand across our entire customer base. This financing demonstrates investors’ extraordinary confidence in our financial performance and the strength of their collaboration with us to continue fueling our unprecedented growth.
This latest round follows Anthropic’s $3.5 billion Series E in March 2025, which valued the company at $61.5 billion. The new valuation reflects the company’s rapid ascent in the AI sector, driven by surging enterprise interest and widespread adoption of its API services.
Over the past year, Anthropic has seen its annual recurring revenue (ARR) skyrocket from $1 billion to $5 billion, fueled by increased usage of its AI models and tools across industries. The company now serves over 300,000 business customers, and the number of large accounts, defined as clients generating more than $100,000 in run-rate revenue, has grown nearly sevenfold in the past 12 months.
A key driver of this growth is Claude Code, Anthropic’s developer-focused AI product. The company reports that Claude Code alone is generating more than $500 million in run-rate revenue, with usage increasing tenfold in just the last three months. The tool has become a favorite among developers for its intuitive interface and powerful coding capabilities.
Despite its success, Anthropic acknowledges the challenges of sustaining momentum in a competitive landscape that includes rivals like OpenAI, Cursor, and others. In a candid internal memo reported by Wired, CEO Dario Amodei admitted that while he’s not enthusiastic about accepting funding from sovereign wealth funds tied to authoritarian regimes, the realities of scaling a global AI company make it difficult to exclude “bad people” from investing.
