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.

Grok 4 is xAI’s most advanced model yet, but early praise is clashing with old scandals and fresh tests of its limits.

A Turkish court has banned Elon Musk’s AI chatbot Grok from operating in Turkey. The decision on Wednesday followed allegations that the chatbot posted offensive content about President Recep Tayyip Erdogan,