A look at Pangram, the AI detector at the center of disputed accusations against writers, including a pulled novel and a Commonwealth Prize-winning short story (Elaine Moore/Financial Times)

The European Union has classified ChatGPT, Reddit and Roblox as “very large online platforms” after each surpassed 45 million monthly users in the bloc, subjecting them to stricter Digital Services Act oversight. OpenAI announced its advertising business reached a $1 billion annualized revenue run rate, while Nvidia disclosed a $3.5 billion investment in MediaTek via convertible bonds, with MediaTek projecting about $2 billion in AI-chip revenue this year.