Cascadeur is a standalone 3D animation software that leverages AI and physics-based tools to simplify the process of keyframe animation. It offers a range of features, including AutoPhysics for realistic motion, intuitive trajectories for better animation control, and deep learning instruments to ease the animator's workload. With Cascadeur, users can create, clean up, and edit animations effortlessly, making it an essential tool for animators and studios focused on producing high-quality realistic animations quickly and efficiently.