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

James Gunn's Superman is an intentionally silly comic book movie loaded with fantastical elements, but the most unrealistic element involves journalism.

Elon Musk’s artificial intelligence company xAI issued a lengthy apology Saturday for a series of violent and antisemitic posts from its Grok chatbot this week, blaming a system update.