Anthropic AI announced a deal to provide its Claude AI model for use by Deloitte employees. File Photo by Katia Christodoulou/EPA

Oct. 7 (UPI) -- Deloitte will begin using AnthropicAI's Claude assistant for hundreds of thousands of its global employees.

The global professional service giant Deloitte announced Monday that more than 470,000 of its workers around the world will gain access to Anthropic's artificial intelligence assistant Claude in San Francisco-based Anthropic's biggest deployment to date.

"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.

Anthropic revealed its latest Claude Sonnet 4.5 AI model last month and announced it closed out a $13 billion round of funding for a $183 billion valuation.