Gen-4 Turbo

Act-Two enables animation of any character by transferring movements, expressions, and speech from a driving performance video onto a static image or reference video of your character. By selecting the Gen‑4 Video model and then the Act‑Two icon in Runway’s web interface, you supply two inputs; a performance video of an actor enacting your desired scene and a character input (either a single image or a video clip), and optionally enable gesture control to map hand and body movements onto character images. Act‑Two automatically adds environmental and camera motion to still images, supports a range of angles, non‑human subjects, and artistic styles, and retains original scene dynamics when using character videos (though with facial rather than full‑body gesture mapping). Users can adjust facial expressiveness on a sliding scale to balance natural motion with character consistency, preview results in real time, and generate high‑resolution clips up to 30 seconds long.

Runway Gen-4 is a next-generation AI model that transforms how creators generate consistent media content, from characters and objects to entire scenes and videos. It allows users to create cohesive, stylized visuals that maintain consistent elements across different environments, lighting, and camera angles, all with minimal input. Whether for video production, VFX, or product photography, Gen-4 provides unparalleled control over the creative process. The platform simplifies the creation of production-ready videos, offering dynamic and realistic motion while ensuring subject consistency across scenes, making it a powerful tool for filmmakers and content creators.