AI owner Elon Musk made some big claims about Grok’s capability, saying it was “better than PhD level in every subject.”

On Wednesday night, Elon Musk unveiled xAI's latest flagship models Grok 4 and Grok 4 Heavy via livestream, just one day after the company's Grok chatbot began generating outputs that featured blatantly antisemitic tropes in responses to users on X.

We are aware of recent posts made by Grok and are actively working to remove the inappropriate posts,” xAI said in a statement, adding that it “has taken action to ban hate speech before Grok posts on X.

Elon Musk announced this weekend that his team at xAI made improvements to their AI chatbot Grok. Days later, Grok has already gone on several blatantly antisemitic tirades.

Musk's confirmation followed a late-night livestream announcing xAI's Grok 4, where he claimed the new AI model was smarter than "almost all graduate students, in all disciplines, simultaneously," and could "discover new physics."

Grok began repeatedly praising Adolf Hitler, using antisemitic phrases and attacking users with traditionally Jewish surnames.