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.

In a late-night announcement, X owner Elon Musk unveiled the new Grok 4 chatbot. Here's everything you need to know about it.

Elon Musk's new AI chatbot, Grok 4, is raising eyebrows for its unusual behavior. The chatbot, released Wednesday by Musk's company xAI, sometimes searches Musk's views online before answering questions.

Users of Elon Musk’s AI, Grok, say the chatbot’s responses have shifted to the right, and one expert said the explanation lies in a change to its internal instructions. People are accusing Grok of a conservative bias,

Grok, the chatbot developed by Elon Musk’s xAI, was updated over the weekend with instructions to “assume subjective viewpoints sourced from the media are biased” and “not shy away from making claims which are politically incorrect” — part of Musk’s ongoing attempt to shape the bot’s point of view.