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.

Grok 4, Elon Musk’s AI chatbot, has been drawing criticism for seemingly echoing Musk’s views on controversial topics. Several users have noted its reliance on his X posts. While xAI promotes it as a “maximally truth-seeking AI,