FlashVideo is a deep learning model focused on efficient, high-resolution video generation. Its staged generation strategy first creates a low-resolution video, which is then enhanced to high resolution using an upscaling model. This approach significantly reduces computational costs while maintaining detail. This technology holds significant promise for video generation, especially in scenarios requiring high-quality visual content. FlashVideo is suitable for a variety of applications, including content creation, advertising production, and video editing. Its open-source nature allows researchers and developers to customize and extend its functionality.