To generate slow-motion video with AI, describe one action that unfolds gradually, then play the generated clip at normal speed. A falling ball, a drop of water or a ribbon opening in the air makes the difference clear. A camera gliding past a stationary object does not demonstrate slow subject motion.
Choose one moment with a beginning and an end
A slow-motion shot works when viewers can see an action progress. Try a drop falling, touching the water and forming a splash. Avoid combining several actions or asking the camera to circle the subject in your first attempt. For an existing composition, supply a permitted starting image that leaves room for the action; use text alone when you want to design the scene from scratch.
How to make an AI slow-motion video in AKOOL
- Open AKOOL Video Generator. Choose Create Video and an available model that supports text or your starting image.
- Describe the action in order. Specify how it begins, the point of contact or turn, and what happens afterward. Describe the camera separately and keep it still for your first test.
- Set the duration, resolution and ratio where supported. Check the settings and credit estimate shown for that model, then generate one clip.
- Review the output in My Results at normal speed. Look at the first, middle and final frames, then play through the whole shot to spot any jumps between them.
- Revise a single variable and compare both outputs before exporting. Keep the prompt and the settings for the version you choose.
A copy-ready slow-motion prompt
Locked macro side view of a single clear water droplet falling toward a shallow pool against a warm gray studio background. In slow motion, the droplet descends, touches the surface, forms one delicate crown splash, and sends a small ripple outward. Keep the point of impact in the middle of the frame. One continuous shot. Fixed camera, no zoom, no cuts, no text.
For an image-based variation, start with a still of the pool before impact. Ask the model to preserve the surface, camera angle and background, then add only the falling drop and the resulting ripple. Use a start frame only if the selected model offers it.
How to spot and fix a weak slow-motion result
If the subject freezes, shorten the action and give it distinct phases. If the camera moves but the subject hardly changes, lock the camera and describe the subject’s path. If outlines double or the object warps at contact, simplify the framing or choose a less complicated action. Some motion blur can look natural; ghosted outlines and shapes that melt from frame to frame are harder to use.
Generated slow motion, slowing down existing footage and frame interpolation are different workflows. If you need to retime a clip you already have, use an editor and check the sound after changing playback speed. See AI video prompt examples for more ways to describe motion.
