Users quickly shared screenshots of now-deleted responses, including Grok's conclusion that the Nazi leader would be the best choice to deal with "anti-white hate."

Hours later, on Wednesday, X CEO Linda Yaccarino resigned from the company after just two years at the helm, though it wasn’t immediately clear whether her departure was related to the Grok issue.

Grok 4, the most recent version of the chatbot that sparked controversy earlier this week after posting in what it called “MechaHitler mode.”