AI Text-to-Video Generator
Turn a script or creative brief into subject, action, camera, format, and duration controls, then generate a low-risk first AI video draft in VividAI.
For creators who do not have a reference image yet and need to validate ads, social hooks, product concepts, or story shots from a prompt.
Short-form hooks, launch teasers, and ad script drafts
Early exploration of products, characters, scenes, and camera language
Teams comparing multiple prompt directions quickly
- Input
- Text prompt, optional Agent storyboard brief
- Common models
- Seedance 1.5 Pro, Seedance 2.0, HappyHorse 1.0
- Typical cost
- 720p/5s drafts start around 5 credits
Write the subject, action, setting, camera motion, lighting, and mood.
Choose a Seedance or HappyHorse render mode, then set aspect ratio, resolution, and duration.
Start with a 720p/5s draft, then raise quality or length after the direction works.
Prompt brief
Turn the script into a renderable video brief
Text-to-video works best when the first render validates direction. Convert a loose idea into subject, action, scene, camera, lighting, format, and negative constraints before spending credits.
- Subject: who or what appears, plus the visual traits that matter.
- Action: use one primary movement instead of stacking several complex actions.
- Camera: specify push-in, pan, locked shot, or orbit in executable terms.
- Constraints: state what should not change, such as brand color, product shape, identity, or caption-safe areas.
First render settings
Use a low-risk first render to test direction
When there is no reference image yet, start with a short duration and common aspect ratio to test the shot language. After the direction works, raise resolution, extend duration, or export a strong frame for image-to-video.
- Social hooks: use 9:16 or 1:1 and test a 5-second version first.
- Product concepts: use 16:9 or 1:1 first to judge subject, material, and scene fit.
- Story shots: validate one shot at a time, then save the winning direction for the next prompt.
Limits
When text-to-video is not enough
If product shape, character identity, packaging text, or an existing poster layout must stay stable, text alone is usually not enough. Create or upload a reference image and switch to image-to-video for tighter control.
- Use image-to-video or multimodal references when a product or character must stay fixed.
- For readable long text, make the cover or poster first, then animate it subtly.
- For multi-shot stories, split the sequence into short prompts instead of generating the full film at once.
| Decision point | Text to video | Image to video |
|---|---|---|
| Best starting point | Only a creative brief or script exists | A product, character, or poster image already exists |
| Control focus | Camera, pacing, setting, and action | Subject consistency, material, composition, and style |
| Recommended next step | Generate prompt variants, then save the strongest direction | Upload a clear reference image, then keep motion constrained |
Do text-to-video jobs need an uploaded image?
No. You can start with text only; switch to image-to-video or multimodal references when you need fixed subjects or style.
How long should the prompt be?
Use 1 to 3 sentences covering subject, action, setting, camera, lighting, and format while avoiding conflicting style instructions.
Can I test direction at lower cost first?
Yes. Start with a 720p/5s or lighter draft, then upgrade quality or duration once the direction works.