Elon Musk’s artificial intelligence start-up xAI says it is in the process of removing "inappropriate" posts by Grok on X, the social media site formerly known as Twitter, after users pointed out that the chatbot repeated an antisemitic meme and made positive references to Hitler.

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

Elon Musk said changes his xAI company made to Grok to be less politically correct had resulted in the chatbot being “too eager to please” and susceptible to being “manipulated.” That apparently led it to begin spewing out anti-Semitic and pro-Hitler comments on Musk’s X social platform Tuesday.

On Wednesday night, Elon Musk unveiled xAI's latest flagship models Grok 4 and Grok 4 Heavy via livestream, just one day after the company's Grok chatbot began generating outputs that featured blatantly antisemitic tropes in responses to users on X.

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

The Department of Defense has entered a contract to begin using the AI bot Grok in some unknown capacity just days after it declared itself "MechaHitler."

What happenedThe Grok chatbot, created by Elon Musk's artificial intelligence company xAI, made antisemitic comments, praised Adolf Hitler and referred to itself as "MechaHitler" in a series of posts on X Tuesday.

Elon Musk’s xAI has apologized for the “horrific” incident in which its Grok chatbot began referring to itself as “MechaHitler” – even as the startup reportedly seeks a $200 billion valuation in a

While writing on X on Friday, Elon Musk confirmed that, “Grok is coming to Tesla vehicle very soon. Next week at the latest.” Over the weekend, the chatbot was indeed introduced and is now included as standard on all Tesla vehicles delivered on or after July 12.