In a memo to OpenAI employees, CEO Sam Altman said the board hasn't received an official offer from Elon Musk regarding a potential purchase. "Elon has a history of making claims that don't hold up," ...

Russia has said it is yet to receive anything official from the US on its peace plan, after Ukraine's Volodymr Zelensky said he was ready to work with the Trump administration on its "vision" to bring ...