Grok 4 is xAI’s most advanced model yet, but early praise is clashing with old scandals and fresh tests of its limits.

Elon Musk’s artificial intelligence company is taking down antisemitic comments and other “inappropriate posts” made by its Grok chatbot, including some praising Adolf Hitler

Elon Musk ripped into his own newly improved artificial intelligence chatbot Grok after it declared that the biggest threat facing Western civilization was “misinformation.” The billionaire Tesla and xAI chief had announced a new version of Grok on Wednesday night,

The AI chatbot Grok, which is produced by Elon Musk’s xAI, wrote numerous antisemitic social media posts Tuesday after the artificial intelligence company released a revamped version of it over the weekend. The posts ranged from alleging "patterns" about Jewish people to praising Hitler.

Linda Yaccarino is stepping down as CEO of X after two years leading Elon Musk’s social media company. Yaccarino’s departure comes one day after the company’s Grok chatbot began pushing antisemitic tropes in responses to users. It’s not clear that the events were connected.