Linda Yaccarino stepped down as X's CEO a day after the platform's AI chatbot, Grok, went haywire and began praising Adolf Hitler's actions in responses to users.

Elon Musk appeared to give a mocking response to his artificial intelligence chatbot’s Hitler-praising comments on X. On Tuesday, the chatbot called Grok—created by Musk’s company xAI—started giving unhinged responses to users on the billionaire’s social media platform.