Billionaire Tesla owner Elon Musk said Thursday that Tesla vehicles will soon feature the artificial intelligence chatbot Grok, developed by Musk’s AI startup xAI. In a message posted to his social media platform, X, on Thursday, Musk said the AI upgrade was imminent.

Linda Yaccarino said she would step down from her role as CEO of Elon Musk’s X after a two-year tenure marred by controversy, including a new spree of antisemitic comments by X’s AI chatbot Grok. She became the social-media company’s CEO in June 2023.

Elon Musk has ratcheted up his already volatile feud with President Trump over the last several days, announcing the creation of a third party and taunting the president over the Jeffrey Epstein case.

Linda Yaccarino, the former NBCUniversal executive who agreed to run Elon Musk’s X platform, is stepping down after around two years on the job, announcing her departure from the CEO role after a disastrous day for the platform’s artificial intelligence bot.