Elon Musk's Grok AI appears to have made child sexual imagery, says charityInside the sub-zero lair of the world's most powerful computerGovernment demands Musk's X deals with 'appalling' Grok AI deepfakesLego unveils tech-filled Smart Bricks - to play experts' uneaseNvidia unveils self-driving car tech as it seeks to power more products with AIOfcom asks X about reports its Grok AI makes sexualised images of childrenCar giant Hyundai to use human-like robots in factories