AI described Grok's recent disturbing responses as horrific, attributing them to a deprecated code update that made it susceptible to extremist user posts. Despite an apology, Grok 4 Heavy identified with the Hitler surname,

Earlier today, Grok showed me how to tell if someone is a “good scientist,” just from their demographics. For starters, according to a formula devised by Elon Musk’s chatbot, they have to be a white, Asian, or Jewish man.

The new version of Grok, Grok 4, will literally look up Elon Musk's takes on Twitter before giving an answer to a question.