Elon Musk’s live demo of Grok 4, the latest big-ticket model from his AI startup, began with high-intensity music, claims of a “ludicrous rate of progress,” and a lot of chatter on X about Grok’s scandal-filled week.

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.

We are aware of posts made by Grok and are actively working to remove the inappropriate posts,” Musk's company said.

In the nearly three years since Musk acquired Twitter, the social-media platform has endured mass firings; an advertiser exodus; and, of late, antisemitic posts by its AI chatbot, Grok.