Free Video Tool
Runway Prompt Generator
Build a Runway Gen-4.5 prompt with text-to-video or image-to-video direction, subject motion, scene motion, camera work, timing, and positive constraints.
Runway Prompt Generator FAQ
How should I write a Runway Gen-4.5 prompt?
For text to video, describe the visible scene and how it moves. For image to video, let the input image define the look and focus on motion, camera work, and temporal progression.
Should I use negative prompts in Runway?
Runway recommends positive phrasing. Describe the result you want, such as a locked camera or one person walking alone, instead of listing what the model should avoid.
How long should a Runway Gen-4.5 shot be?
Gen-4.5 supports durations from 2 to 10 seconds. Keep short clips to one readable action and reserve longer durations for a controlled progression of related actions.