Elon Musk and xAI employee announced on Wednesday night the launch of the startup's next flagship AI model, Grok 4.

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 series of posts on X, the AI chatbot Grok apologized for what it admitted was “horrific behavior.” The posts appear to be an official statement from xAI, the Elon Musk-led company behind Grok, as opposed to an AI-generated explanation for Grok’s posts.

A former professor and the founder of his own AI company, Howard noticed that if he asked Grok about the Israeli-Palestinian conflict, the chatbot seemed to cross-check Elon’s tweets before regurgitating an answer.

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.”

Elon Musk's plans to ship an overseas power plant to Memphis for an xAI supercomputer raise both interest and environmental concerns.

Elon Musk's AI venture, xAI, has lost one of its top engineering leaders to rival AI heavyweight OpenAI. Uday Ruddarraju, who played a pivotal role in building the core infrastructure of Musk's xAI, confirmed his exit recently.

Elon Musk's xAI said Grok's behavior was due to an update that caused it to prioritize engagement, even if posts contained "controversial opinions."