Grok 4 debuts with bold claims and new voices, but antisemitic scandal casts long shadow over Musk's AI moment.

Elon Musk’s AI chatbot Grok is under fire after generating graphic rape threats and praising Hitler, raising serious concerns over content moderation and AI safety.

AI's new AI, Grok 4, outperforms competitors but faces scepticism due to high cost and recent safety concerns, challenging market acceptance.