The AI video generation tool from Runway, Gen-2, has undergone an epic update, allowing users to easily generate 4K high-definition videos through text input. This update utilizes a mixed training model that combines text, images, and video to enhance video quality and reduce training costs. The revolutionary features of Gen-2 have transformed the way creative software operates, impacting the film and creative industries. Users can now experience high-quality video creation on their mobile devices, expanding the possibilities for creative endeavors, including fashion ads, MV shots, and sci-fi films.