Elon Musk on Wednesday unveiled Grok 4, a new version of his X platform's AI chatbot. The update comes a day after the bot posted antisemitic content on the social media network. Musk introduced the new model in a livestream on X late Wednesday, calling Grok 4 "the smartest AI in the world."

The unusual behavior of Grok 4, the AI model that Musk's company xAI released late Wednesday, has surprised some experts.

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.”

Grok 4 has a favorite source on some hot-topic issues, citing Elon Musk's opinions without being instructed to do so.

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.

Grok 4 aligns its answers with Elon Musk's when it comes to controversial issues, users have discovered shortly after the company launched the new model.

Elon Musk's xAI faced internal backlash after Grok's antisemitic posts. Workers demanded answers — and one said they would quit.

AI's latest Grok 4 large language model appears to search for owner Elon Musk's opinions before answering sensitive questions about

Elon Musk has launched xAI’s Grok 4—calling it the “world’s smartest AI” and claiming it can ace Ph.D.-level exams and outpace rivals such as Google’s Gemini and OpenAI’s o3 on tough benchmarks