It isn't immediately clear what led to the disturbing posts, whether due to a fault in the chatbot's programming or if Grok was just following orders.

Most advertisers on X are choosing to remain silent on their future plans and relationship with the company after Grok went on a racist and antisemitic spree.

Yaccarino announced her departure on X, saying that she is “immensely grateful” to Elon Musk for taking her on in 2023.