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,

It isn't immediately clear what led to the disturbing posts, whether due to a fault in the chatbot's programming or if Grok was just following orders.

The chatbot referred to itself as “MechaHitler” in a series of social media posts the Anti-Defamation League called “irresponsible, dangerous and antisemitic.”