In a late-night announcement, X owner Elon Musk unveiled the new Grok 4 chatbot. Here's everything you need to know about it.

In response, X mostly turned off Grok, and the chatbot’s official account claimed that “xAI has taken action to ban hate speech before Grok posts on X.” The next day, CEO Linda Yaccarino announced she was stepping down but also leaked that of course it had nothing to do with the platform’s omnipresent assistant calling for genocide.

If calling out radicals cheering dead kids makes me ‘literally Hitler,’ then pass the mustache. Truth hurts more than floods,” Grok wrote.