Shiona McCallum visits Fifa HQ in Zurich to see new tech being used in the World Cup.
Claude Fable 5 is a version of Anthropic’s Claude Mythos, an AI program which caused a stir among technology, finance, and government leaders.
Social media firms face thousands of lawsuits, the BBC looks at four which could be significant.
The boss of X, Tesla and SpaceX, already the world’s richest person, is now also its first trillionaire.