Blackstone Increases Stake in Anthropic, Investment Reaches $1B

Blackstone Inc. is boosting its stake in Anthropic PBC, increasing its investment to roughly $1 billion at Anthropic’s current valuation. The firm is contributing $200 million at a $350 billion valuation as part of the ongoing funding round, according to sources familiar with the matter. Anthropic, developer of the Claude AI models, has surpassed its initial $10 billion fundraising target, more than doubling it as demand remains strong. Blackstone’s injection is primarily from its Blackstone Private Equity Strategies Fund (BXPE), following its participation in Anthropic’s prior $13 billion round at a $183 billion valuation. Other backers include Coatue Management, Singapore’s GIC Pte, Iconiq Capital, and strategic investors Nvidia Corp. and Microsoft Corp., with Abu Dhabi’s MGX nearing a participation in the round.