India, Nov. 18 -- Microsoft Corp. and Nvidia Corp. plan to invest in Anthropic AI under a new tie-up that requires the Claude maker to use Microsoft Azure, in yet another high-profile AI deal amid fears of a bubble.

According to the Microsoft-Nvidia-Anthropic deal, Nvidia and Microsoft will invest $10 billion and $5 billion, respectively, in Anthropic which in turn will buy $30-billion worth of Azure compute capacity, according to a statement on Tuesday. Separately, Nvidia and Anthropic will establish "deep technology partnership" that includes collaboration on design and engineering.

"We are very excited to get additional capacity that we can use both to train our models to support Microsoft first party products and sell together," Ant...