AI owner Elon Musk made some big claims about Grok’s capability, saying it was “better than PhD level in every subject.”

Elon Musk’s artificial intelligence startup xAI is rolling out Grok 4 just months after releasing its previous iteration, underscoring the frenetic pace of AI development.

Social media posts on the X account of the Grok chatbot developed by Elon Musk’s company xAI were removed on Tuesday after complaints from X users and the Anti-Defamation League that Grok produced content with antisemitic tropes and praise for Adolf Hitler.