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 AI chatbot Grok 4, launched by xAI this week, is drawing attention for how closely it mirrors its creator’s political views. The model, introduced in a livestreamed event, appears to consult Musk’s posts on his social platform X when tackling controversial topics,

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