Montage Help CenterDescribe the video you want
The box at the bottom of New video is where you tell Montage what to make. Here is what it holds, and how to write in it.
Written by Ben (Founder) · Updated November 5, 2026What is in the box
| Part | What it does |
|---|---|
| The words | Your description. The box says Say it like you would to an editor. |
| + | Add footage (videos, music or pictures), or From the Library: a style or a component. |
| The AI model | Haiku, Sonnet or Opus. On the Free plan, Haiku only. Choose the AI model. |
| The shape | Vertical (9:16), Square (1:1) or Horizontal (16:9). On a phone it starts on Montage chooses: the shape of your first video. |
| The mic | Speak instead of typing. Click it again to stop. |
| Under the box | What the video should cost: « About 3 credits ». With Opus: « Opus may use more credits ». |
How to write it
- Say what the video is for. « A 30-second ad for my bakery, for Instagram. »
- Say what to keep and what to drop. « Keep the part where I explain the recipe. Cut the mistakes. »
- Say how it should look and sound. « Big white captions, calm music, my logo at the end. »
Upload every take you might use, not only the good ones: Montage reads them all.
Use a style. Pick one with + › From the Library, or press Use this style on a style: the box writes « Make a video in the … style. » for you. What a style is.
After the first version
You do not have to get it right the first time. Once the video is made, ask for changes in Ask or comment on the picture. After the first version, Haiku makes the changes, unless you pick another model.
Questions
Does a longer description cost more?
A little: the estimate counts your words, the words spoken in your footage and your pictures. The footage counts much more than the description.
What if I don’t know what I want?
Say what you filmed and who will watch it. Montage makes a first version, and you change it from there.