Anthropic Valuation Surges to $350 Billion on Microsoft, Nvidia Investments
Anthropic's valuation reached approximately $350 billion on November 19, 2025, following new investment commitments from Microsoft and Nvidia, according to Bloomberg. Microsoft pledged up to $5 billion while Nvidia committed up to $10 billion, substantially exceeding the AI startup's September valuation of $183 billion. The investments mark a strategic expansion for Microsoft beyond its existing OpenAI partnership and establish Nvidia's first deep technical collaboration with Anthropic.