A finished 30-second
vertical video
, from one line.
Script, four AI clips, narration, timed captions, final render. You keep control of every scene — and of every dollar spent.
- 9:16
- vertical, 720p or 1080p
- 30 s
- exact, ±0.1 s
- H.264 · AAC
- faststart, yuv420p
- 4 scenes
- each regenerable
How it works
- 01
Describe the topic
Topic, language, style, tone, voice. Nothing is generated yet — and nothing is billed.
- 02
Get a four-scene script
A strict plan: 8 + 8 + 8 + 6 seconds, a hook in the first two. Every field stays editable.
- 03
Generate scene by scene
Clips arrive one at a time. A weak scene is redone on its own — the other three are untouched.
- 04
Render the master
Narration, captions and transitions assembled in a single FFmpeg pass into a vertical MP4.
Built to not surprise you
Costs are visible first
An estimate appears before anything starts. Every provider call is recorded with its price, and per-user credits plus a global daily cap stop runaway spending.
No silent retries
Technical failures retry a bounded number of times. A result that merely looks bad is never regenerated automatically — that call, and its cost, is yours.
Free by default
Mock providers render a real MP4 through the whole pipeline without touching a paid API, so the system can be exercised end to end for nothing.