Elon Musk has launched Grok 4 and claims that the model is designed to solve PhD-level problems. Moreover, it can also solve "difficult, real-world engineering questions where the answers cannot be ...

AI raised $10 billion through loans and cash investments in July, split evenly between debt and equity. In June it sold $300 million worth of shares in a secondary stock offering.

Built using huge amounts of computing power at a Tennessee data center, Grok is Musk’s attempt to outdo rivals such as OpenAI ...