You generate a 15-second AI video by writing one sentence that describes a scene, optionally pressing Enhance to turn it into a timed shot list, and pressing generate. The output is a finished 15-second clip — 2K, 9:16 vertical, with sound — delivered as an MP4 you can post to TikTok, Reels, or Shorts as is.
Here is one, generated from the first prompt in the list below:
Why 15 seconds?
Because 15 seconds is one idea, start to finish. It is long enough for a setup and a payoff, and short enough that people actually watch to the end — which is what TikTok, Reels, and Shorts reward. The length is fixed on purpose: instead of asking "how long should this be?", you ask "which single moment is worth fifteen seconds?" That constraint is what makes the clip feel directed instead of padded.
What prompts produce a full 15 seconds?
The same five ingredients as any good AI video prompt — subject, action, setting, camera move, and mood — pointed at one continuous moment. These are the real prompts behind the example clips on this site:
- "a striker finishing under floodlights" — the stadium goal above
- "a woman releases a paper lantern onto a night river as hundreds rise into the sky"
- "a paper boat drifting through a glowing city"
Notice what they share: one subject, one action, one look. None of them squeezes two scenes into fifteen seconds — that is exactly what keeps the result coherent.
What does Enhance change?
Enhance takes your one-liner and expands it into a timed 0–15 second shot list: what the camera does, what changes at each beat, and what the soundtrack is doing across the full fifteen seconds. Your idea stays yours; the structure gets professional. If the shot list invents something you did not mean, edit your original sentence and re-run Enhance rather than fixing the expanded text by hand.
How do you generate one, step by step?
- Describe the scene in one sentence. Who or what is in frame, what happens, the mood.
- Press Enhance (optional, recommended). Read what it wrote; re-run it if it drifted.
- Press generate. Most clips reach your result page within a few minutes. Download the MP4 there — or scan the QR code to move it straight to your phone.
Every email-verified account gets one free preview — 768p, 5 seconds, with sound — so you can see the direction of the output before paying for anything.
What does a 15-second AI video cost?
Packs are one-time purchases, not subscriptions, and they never expire: $9.9 for 2 videos, $19.9 for 5, $39.9 for 11. If a generation fails, the video is automatically returned to your balance — a failed run never costs you anything. The full picture is in what AI Video Creator is.
What can a 15-second AI video not do?
Honest limits:
- The length is fixed. There is no 30-second or 60-second mode.
- There is no timeline editing. If you want a different result, you change the prompt and regenerate.
- Generation is not instant. Budget a few minutes per clip rather than a few seconds.
- The free preview is a direction check, not a quality sample. It is 768p and 5 seconds; the paid format is the full 15-second clip.
Out of ideas for what to generate? Pick a subject from 15-second AI video ideas, sharpen the wording with the AI video prompt formula, and take the finished clip to a real post with the TikTok walkthrough or the YouTube Shorts guide. Curious why the frame is vertical at all? Vertical AI video generator explains it.
Ready to try? Open the creator — your first prompt takes one sentence.
By AI Video Creator Team