Runway Gen-4.5 is the world’s top-rated video model, offering unprecedented visual fidelity and creative control. It produces cinematic and highly realistic outputs while providing limitless creative freedom and precise control over every aspect of generation. (View Highlight)
Runway Gen-4.5 pushes the frontier of video generation even further. It represents significant advances in both pre-training data efficiency and post-training techniques. Gen-4.5 sets new standards for dynamic, controllable action generation, temporal consistency and precise controllability across diverse generation modes. With 1,247 Elo points, Gen-4.5 currently holds the top position in the Artificial Analysis Text to Video benchmark, surpassing all other models. (View Highlight)
Gen-4.5 maintains the speed and efficiency of Gen-4, delivering breakthrough quality without compromising performance. Available at comparable pricing across all subscription plans, Gen-4.5 makes world-leading video generation accessible to creators and organizations at every scale. We’ll also be bringing all existing control modes (Image to Video, Keyframes, Video to Video and more) to Gen-4.5. (View Highlight)
Gen-4.5 achieves unprecedented physical accuracy and visual precision. Objects move with realistic weight, momentum and force. Liquids flow with proper dynamics. Surface details render at great fidelity. And fine details like hair strands and material weave remain coherent across motion and time. (View Highlight)
Despite the leap in capabilities, the model exhibits several limitations common to video generation models:
• Causal reasoning: effects sometimes precede causes (e.g., a door opening before the handle is pressed).
• Object permanence: objects may disappear or appear unexpectedly across frames (e.g., a cup vanishing after being occluded).
• Success bias: actions disproportionately succeed (e.g., a poorly aimed kick still scoring a goal). (View Highlight)
