Anthropic said Monday it raised $3.5 billion in its latest funding round, giving the Amazon- and Google-backed AI startup a $61.5 billion post-money valuation.

Lightspeed Venture Partners led the funding round, Anthropic said, and other investors included Cisco Investments, Salesforce Ventures, and Fidelity Management & Research Company.

Anthropic said with this latest investment, it “will advance its development of next-generation AI systems, expand its compute capacity, deepen its research in mechanistic interpretability and alignment, and accelerate its international expansion.”

The news comes a week after Anthropic announced Claude 3.7 Sonnet, its “most intelligent model to date and the first hybrid reasoning model on the market,” and Claude Code, “a command line tool for agentic coding.” Anthropic says the products “mark an important step towards AI systems that can truly augment human capabilities.”