Runway is a leading AI platform for video and image generation in 2026, powered by advanced models like Gen-4.5 (top-rated for motion and fidelity) and GWM-1 world simulation. It offers text-to-video, image-to-video, lip sync, and creative tools via web app, with credit-based pricing starting from free limited access. Ideal for filmmakers, creators, and enterprises, though outputs can vary and higher plans are needed for heavy use.