Catenaa, Tuesday, November 18, 2025- Microsoft and Nvidia plan to invest a total of $15 billion in Anthropic under a new tie-up that includes a $30 billion commitment by the Claude maker to use Azure.
Nvidia will commit as much as $10 billion to Anthropic and Microsoft up to $5 billion, the companies said on Tuesday, without sharing more details, including on the timeline.
The announcement underscores the AI industry’s insatiable appetite for computing power as companies race to build systems that can rival or surpass human intelligence.
It also ties major OpenAI backer Microsoft, as well as key AI chip supplier Nvidia, closer to one of the ChatGPT maker’s biggest rivals.
“We’re very excited to get additional capacity that we can use both to train our models to support Microsoft first-party products and to sell together,” Anthropic CEO Dario Amodei said in a YouTube video accompanying the announcement.
The move comes just weeks after OpenAI unveiled a $38 billion deal to buy cloud services from Amazon in its first big push to power its AI ambitions after a restructuring that gave the ChatGPT maker greater operational and financial freedom.
OpenAI CEO Sam Altman has said the startup is committed to spending $1.4 trillion to develop 30 gigawatts of computing resources – enough to roughly power 25 million US homes.
Still, three years after ChatGPT’s debut, investors are increasingly uneasy that the AI boom has outrun fundamentals. Some business leaders have noted that circular deals – where one partner props up another’s revenue – add to the bubble risk.
A few large investors have recently dumped some of their AI holdings, stoking fears that a market selloff is imminent.
Both Microsoft and Nvidia stocks were down on Tuesday by 2.8% and 2% respectively.
