This week, Elon Musk unveiled Grok 4, which he called "the world's most powerful AI assistant." The optics were appalling; the same week, the older version of Grok repeatedly attacked Black and Jewish people and declared itself "MechaHitler." It also ...

Elon Musk promised social media users would "notice a difference" Friday when asking questions to Grok, an AI-assisted chatbot, on the billionaire's X platform — and notice they did. On July 8 ...