How to use Video Scenario Maker, plus frequently asked questions.
Video Scenario Maker helps you plan an AI video scene by scene. Set each scene's length, reference image, dialogue and camera, check the pacing on a timeline, and copy English prompts you can paste straight into AI video generators. It also exports a prompt for AI music generators and SRT subtitles.
| Area | What it does |
|---|---|
| Left: Project | Settings shared by every scene: aspect ratio, visual style, mood and dialogue language. The Voices, Music and File tabs are here too |
| Center: Preview | Plays images, subtitles and music in sync. The space bar also plays and pauses |
| Right: Inspector | Edits the scene you selected on the timeline: image, description, dialogue, shot, camera and more |
| Bottom: Timeline | Video, subtitle and music tracks. Select a clip to edit it, drag its right edge to change the length, or click the ruler to jump to that point |
| Bottom row: Prompts | Four outputs to copy: Per scene, Full timeline, Music and SRT subtitles |
| Output | What's in it | Best for |
|---|---|---|
| Per scene | One prompt per scene. Shared settings are repeated in each one, so every prompt works on its own | Generating one shot at a time and joining them in an editor |
| Full timeline | All scenes combined with time codes such as [0:00โ0:03] | Services that can generate longer clips with time cues |
| Music | Genre, mood, tempo, length and cut points | Making background music with an AI music generator |
| SRT subtitles | A subtitle file for the scenes that have dialogue | YouTube captions or importing into a video editor |
What each service supports as of September 2026, and which output suits it best.
| Service | Length per generation | Audio & dialogue | Multiple shots at once | Recommended output |
|---|---|---|---|---|
| Sora 2 (OpenAI) | Up to 15 s (25 s on the web with ChatGPT Pro) | Yes | Storyboard feature (Pro) | Per scene, or Full timeline up to 15 s |
| Veo 3.1 (Google) | 8 s (join clips with scene extension) | Yes | One shot per clip | Per scene |
| Seedance 2.0 / 2.5 (ByteDance) | 2.0: 15 s, 2.5: 30 s | Yes | Yes (multi-shot) | Full timeline |
| Kling 3.0 | 3โ15 s | Yes | Yes | Full timeline or Per scene |
| DomoAI | 5 s or 10 s | Video only | One shot per clip | Per scene + SRT subtitles |
Length limits and features change with plans and updates, so check each service's latest information before you start.
It writes general-purpose English prompts that don't depend on any one service's syntax, so they work with text-driven video generators such as Sora, Veo, Seedance, Kling and DomoAI. Use Per scene for services that generate one shot at a time, and Full timeline for services that can generate several shots in one longer clip. See the table under "Working with popular AI video generators" for each service.
Yes, but free-text fields are output exactly as you type them; the tool does not translate. Menu options such as shot size and camera movement are always written as standard English phrasing. Write dialogue in the language you want it spoken in.
Each service and plan limits how long a single generation can be. Split your scenes to fit the limit of the service you use. The tool shows a warning when a scene is longer than 10 seconds.
Yes. The Voices tab lists every speaker in your scenes. Choose a gender, age, tone and pace, plus optional notes, and the voice is added to that speaker's lines (for example: a calm, middle-aged male voice). Lines without a speaker are grouped as the narrator.
When a scene has an image, its prompt says to use the attached reference image. The image itself is not part of the prompt, so attach the same image when you paste the prompt into a video generator. The preview shows the image as well.
Scenes with dialogue become a subtitle file with each scene's start and end times. You can upload it to YouTube as captions or import it into any video editor that supports SRT.
No. Everything, including images and audio, is stored only in your browser (IndexedDB). To move a project to another device, save it as JSON from the File tab. JSON files do not include images or audio.