Chinese leader Xi Jinping endorsed the building of open-source AI models during a speech that implicitly criticized US moves to protect its lead in AI semiconductors and models. He cast China as a champion of openness and equality, saying that the country should oppose overstretching the concept of national security in the field of AI. The US and China have taken different approaches to building AI models, with Silicon Valley building largely proprietary models while China has released many open-source models. Chinese AI executives have expressed concern that they will struggle to close the gap with the US due to restrictions on access to the world's best chips and chip-making equipment.