Anthropic has secured a $13 billion Series F funding round, elevating its post-money valuation to $183 billion. The company intends to use the new capital to expand enterprise adoption, enhance safety research, and support international growth.

The funding round was co-led by Iconiq, Fidelity Management & Research Company, and Lightspeed Venture Partners. Additional investment came from a variety of institutional investors, including Altimeter, Baillie Gifford, BlackRock, Blackstone, Coatue, D1 Capital Partners, Insight Partners, Ontario Teachers’ Pension Plan, and Qatar Investment Authority.

“We are seeing exponential growth in demand across our entire customer base,” stated Anthropic CFO Krishna Rao in a company blog post. He added that the financing demonstrates investors’ confidence in Anthropic’s financial performance and their collaboration to fuel its growth.

Anthropic previously raised $3.5 billion at a $61.5 billion post-money valuation in March 2025. The current fundraise follows reports that the company was considering raising between $3 billion and $5 billion at a $170 billion valuation.

The AI startup has experienced significant growth, with its annual recurring revenue increasing from $1 billion to $5 billion throughout 2025, driven by increased API usage and enterprise adoption. Anthropic reports serving over 300,000 business customers, with the number of large accounts (each representing over $100,000 in run-rate revenue) growing nearly sevenfold in the past year.

Claude Code, Anthropic’s developer-focused product, is generating over $500 million in run-rate revenue, with usage increasing more than tenfold in the last three months, according to the company.

CEO Dario Amodei addressed the challenge of sustaining growth and competition in a memo reported by Wired, noting his discomfort with accepting investments from sovereign wealth funds of dictatorial governments, while acknowledging the practical need to include such investors.