Built using huge amounts of computing power at a Tennessee data center, Grok is Musk's attempt to outdo rivals such as OpenAI's ChatGPT and Google's Gemini in building an AI assistant that shows its reasoning before answering a question.

Elon Musk’s xAI is preparing to raise more money from investors in a deal that could value the artificial intelligence company as high as $200bn — 10 times its value early last year, according to peop...

Most importantly, Grok 4 was able to outperform Claude (and humans, apparently) at running a vending machine business.