Deloitte on Monday announced a deal to bring Anthropic's artificial intelligence assistant Claude to its more than 470,000 employees around the globe.

The rollout will be Anthropic's largest enterprise deployment ever, building on a partnership the two companies first unveiled last year .

Deloitte, which offers consulting, tax and audit services, is one of the 300,000 business customers Anthropic has amassed in the four years since the startup's founding.

"We are both investing a significant amount in this partnership, whether that's financial or whether it is just simply the engineering resource that we're going to put into this as well," Paul Smith, Anthropic's chief commercial officer, told CNBC in an interview.

The companies declined to disclose the financial details of

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