- Can I upload my video and slow it down here?
- No, and this is the most important thing to understand before you spend a credit. This tool generates new footage from a written description; it does not accept a file and retime it. If you already have a clip and want it played back slower, that is a different job — a speed change in an editor — and no generative model is involved. Use this when the slow-motion shot does not exist yet and shooting it is impractical, which is the situation it is genuinely good for.
- Is this real high-speed footage?
- No. A high-speed camera captures hundreds or thousands of real frames per second and plays them back at normal speed. This generates a clip that renders motion at a slow-motion cadence — the look, not the capture method. In practice the difference shows up most in fine, fast-moving detail like individual water droplets or shattering material, where generated output can be softer or less physically consistent than a real high-speed plate. For a two-second ad opener at feed resolution that is usually invisible; for a hero product film it is not.
- How long can a clip be, and what resolution?
- Between 4 and 15 seconds per generation, at 480p or 720p, in 9:16, 16:9, 1:1, 4:3, 3:4 or 21:9. Because slow motion covers very little real-world time, a short generation goes further here than it does on a normal shot — a 5-second clip is plenty for a single stretched moment. Cost scales with duration and resolution, 480p runs at roughly half the credit rate of 720p, and the exact cost is shown before you run it.
- Why does my clip look like normal speed?
- Almost always because the described action has no fast component to slow down. Slow motion is only legible when the audience knows how fast the event should have been — a splash, an impact, a burst. Something that moves slowly in life, like a slow camera drift across a table, looks identical at any playback rate. Add a physical event to the prompt and specify hard lighting, and the cadence becomes visible.
- Is it free?
- Generating requires a paid plan — Creator or higher — and the Free plan does not include tool generation. Each render draws credits based on the duration and resolution you choose, and the cost is shown before you commit, so you can compare a 4-second 480p test against a 15-second 720p final before spending anything.