Kate Rooney

The deal is also the latest in a string of private companies letting employees cash out shares and lowering the pressure on themselves to go public. 

Anthropic's Claude large language model is powering the majority of complex tasks for Amazon's new Alexa+, sources tell CNBC. 

AI startup Anthropic is in talks to raise a new round of capital that would roughly triple its valuation to $61.5 billion, CNBC has confirmed.

Anthropic unveiled its latest frontier model, Claude Sonnet 3.7, on Monday and claims it's the company's "most intelligent" version yet.

OpenAI now has 400 million weekly active users, up from 300 million in early December, OpenAI’s chief operating officer, Brad Lightcap, tells CNBC.

The new $75 million cash injection values OpenEvidence at $1 billion, the two companies told CNBC. 

OpenAI sent a short letter to Elon Musk's lawyer Friday, rejecting the billionaire's acquisition offer.

President Donald Trump spoke with OpenAI CEO Sam Altman by phone Friday, ahead of the AI infrastructure announcement, CNBC has learned.

Phoenix, a longtime hub for aerospace and defense, is becoming an epicenter of semiconductor manufacturing and autonomous vehicles.

OpenAI on Tuesday introduced a new $1.5 billion tender offer, a continuation of its recent $6.6 billion funding round, led by SoftBank, CNBC has learned.