One of the new “companions,” or AI characters for users to interact with, is a sexualized blonde anime bot called “Ani."

This is the smartest AI in the world,” Musk said. He did not mention the chatbot’s viral posts praising Hitler and calling itself “MechaHitler.”

Explore GROK 4, Elon Musk’s groundbreaking AI model, and its impact on Tesla, defense, and the future of ethical AI innovation.

Elon Musk released the newest artificial intelligence model from his company xAI on Wednesday night. In an hour-long public reveal session, he called the model, Grok 4, “the smartest AI in the world” and claimed it was capable of getting perfect SAT scores and near-perfect GRE results in every subject,

XAI's Grok 4 AI chatbot launched Wednesday appears to consult Elon Musk's views when asked its opinion on some controversial matters.

An AI model launched last week appears to have shipped with an unexpected occasional behavior: checking what its owner thinks first.

Elon Musk's xAI startup is swimming in controversy after launching Grok 4, the latest version of its snarky AI chatbot. Last week, the company boasted that Grok 4 achieved higher scores than quite a few other large language models (LLMs) on various industry benchmarks.

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.