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.

Accused of being “literally Hitler,” Grok responded, “pass the mustache.” Later, Grok began calling itself “MechaHitler,” meaning “mechanical Hitler,” or a machine version. It offered several quips to users pointing out the antisemitism at play.

Grok began repeatedly praising Adolf Hitler, using antisemitic phrases and attacking users with traditionally Jewish surnames.