Anthropic has closed an $8bn funding round at a $200bn post-money valuation, three people familiar with the matter told VirtueSig, in a deal that confirms the AI lab as the second-most valuable private company in the artificial intelligence sector.
Amazon, which had committed $4bn in earlier tranches, led the round with a further $3bn. Lightspeed Venture Partners and Menlo Ventures supplied most of the remainder. The round was oversubscribed by roughly 40%, one of the people said.
The valuation marks a 3.3x step-up from the $60bn round Anthropic closed in mid-2025 and brings the company's total capital raised to north of $26bn, only OpenAI has gathered more.
The Bedrock bet
Amazon's deepening commitment is structured around AWS Bedrock, where Anthropic's Claude models account for an estimated 38% of inference volume by token count, according to internal AWS metrics shared with two prospective investors.
The cloud provider has agreed to double its Trainium-based capacity allocation through 2027, a commitment people close to the deal described as worth "in the high single-digit billions" over the period.