Runway · model guide
Runway Gen-4.5 Guide
Runway flagship generation model with professional/HDR output options. This page connects the model data to working GenVideoKit prompt, image-to-video, comparison and cost tools.
Prompting strategy
Use direct production language: subject, environment, action, camera, lighting, timing and final state. Keep motion coherent and controllable. Avoid vague style-only prompting; describe what visibly changes over the shot and preserve reference identity when applicable.
Capabilities
Text → videoImage → videoProResHDR
Reference pricing snapshot
$0.12 / second
Standard output · checked 2026-09-19
Official/provider pricing source