Musk Unveils Grok 4 AI Chatbot After Antisemitism Controversy

Elon Musk’s artificial intelligence startup xAI is rolling out Grok 4 just months after releasing its previous iteration, underscoring the frenetic pace of AI development.

Flanked by members of the xAI team and clad in a leather jacket, the billionaire demoed the new bot via a video livestream late Wednesday night. Available immediately, Grok 4 is “smarter than almost all graduate students, in all disciplines, simultaneously,” according to Musk. It includes improved voice conversations and the company touted benchmarks showing the new AI system scoring higher than OpenAI and others.

“At times it may lack common sense, and it ...