Grok 4 is xAI’s most advanced model yet, but early praise is clashing with old scandals and fresh tests of its limits.

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.

Authorities said the chatbot generated responses insulting the strongman president, modern Turkey's founder Mustafa Kemal Ataturk and religious values.

In recent weeks, X owner Elon Musk has discussed making changes to the platform's AI program, Grok, seemingly due to the fact that the program was giving

White House press secretary Karoline Leavitt's attempt on X to promote Donald Trump's response to the Texas flood that swept through a girls' camp and has led to an estimated 27 deaths earned her a response from Elon Musk's "Grok" chatbot.

Elon Musk announced improvements to his AI chatbot Grok, aiming to challenge ideological bias in existing platforms. He plans to retrain Grok with a more accurate human knowledge base, enhancing its cognitive abilities and positioning it as a truthful alternative to other AI models.

The xAI founder said the very notion humans actually once managed an economy will seem very quaint in the future, like 'cavemen throwing sticks into a fire'.