Anthropic, the AI startup behind Claude, has reached a post-money valuation of $380 billion after securing $30 billion in a Series G funding round. Led by GIC and Coatue, this was the second-largest private tech fundraising round, only topped by OpenAI's $40 billion round last year. The round was co-led by DE Shaw Ventures, Dragoneer, Founders Fund, ICONIQ and MGX.