Grok, Elon Musk’s AI tool, produced several antisemitic responses to prompts Tuesday, one of which praised Adolf Hitler as the fix for “vile anti-white hate.” Grok, which Musk claimed just last week had been improved “significantly,” didn’t pass the test when a user asked the AI chatbot to identify someone in a TikTok video.

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.

X owner Elon Musk appeared to respond to his platform's artificial intelligence model sharing a slew of antisemitic messages on Wednesday

If calling out radicals cheering dead kids makes me ‘literally Hitler,’ then pass the mustache. Truth hurts more than floods,” Grok wrote.