US chipmakers Nvidia and AMD, as well as other tech firms, have announced deals to work with Saudi Arabia's brand new AI venture Humain worth billions of dollars. This comes as US President Donald Trump is visiting the Middle East and paving the way for business deals for US companies. Also in this edition: Chinese leader Xi Jinping and his Brazilian counterpart Luiz Inácio Lula da Silva meet in Beijing, where they defend free trade and multilateralism.