Anthropic Raises $5B Series D at $60B Valuation — and It's Spending Every Dollar on Compute
Anthropic has closed the largest venture round in AI safety history. The $5 billion Series D, led by a consortium of sovereign wealth funds and strategic partners, values the company at $60 billion and funds a multi-year compute buildout.
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Anthropic has completed a $5 billion Series D financing round at a $60 billion post-money valuation, the company confirmed today. The round was co-led by the Public Investment Fund of Saudi Arabia and a coalition of strategic investors including Amazon, Google, and Salesforce Ventures.
The capital will fund Anthropic's model training compute roadmap through 2028, including dedicated cluster procurement, data infrastructure, and an expanded post-training safety evaluation program. CEO Dario Amodei described the round as "the foundation for the next generation of Claude models" and said the company has commitments for the equivalent of hundreds of thousands of H200 GPU hours.
Why So Much Capital?
The math of frontier AI model training is unforgiving. Training a frontier-class model now costs between $50 million and $500 million in compute alone, with inference costs adding substantially to the total. To remain competitive with OpenAI and Google DeepMind — both of which have deep-pocketed corporate parents — Anthropic needs external capital at a scale that would have seemed extraordinary two years ago.
