Nodaro DocsDuration
The Duration node holds a length in seconds. It sets the Target Length of Generate Script, and the length of Generate Video and Generate Video Pro runs.
The Duration node holds a length in seconds, from 1 to 600, with 60 as the default. It sets the length of a script in Generate Script, and the length of a video in Generate Video and Generate Video Pro. It never runs a model and costs nothing.
Settings
| Setting | What it does |
|---|---|
| Duration (seconds) | A length from 1 to 600 seconds. The default is 60. |
What it connects to
| Node | Input | What happens |
|---|---|---|
| Generate Script | Duration | Sets Target Length (seconds), from 5 to 600. |
| Generate Video | Settings | Sets Duration (seconds) to the nearest length the model makes. |
| Generate Video Pro | Settings | Sets the total length of the video, kept within the node's range of 4 to 120 seconds. |
The connected length replaces the length set in the node. The Settings input of the video nodes also takes Aspect Ratio, Provider and Motion nodes. Generate Image takes no Duration node, because a still image has no length.
How a video node fits the length
- Generate Video runs the nearest length. A video model makes only some lengths, so the clip runs at the length nearest to the Duration node's value. A tie goes to the shorter length. For example, 60 seconds runs as 15 seconds on Seedance 2, which makes 4 to 15 seconds. On VEO 3.1, which makes 4, 6 or 8 seconds, 60 seconds runs as 8 and 7 seconds runs as 6.
- Generate Video Pro takes the total length. The value is the length of the whole stitched video, kept within 4 to 120 seconds, the range of its own Duration (seconds) setting.
- The price follows the length that runs. The video node's Run button, the workflow total and the credits held when the run starts all use the fitted length.
- The video node shows it. A chip on the node shows the length it runs, such as 15s. Its duration control shows the Duration node as its source and cannot be changed there.
Where to set a length
| Result | Setting |
|---|---|
| One generated clip | Duration (seconds) in Generate Video, or a Duration node on its Settings input. The choices depend on the model. |
| A long, stitched video | Duration (seconds) in Generate Video Pro, or a Duration node on its Settings input. |
| A whole scripted video | Target Length (seconds) in Generate Script, from 5 to 600 seconds, or a Duration node on its Duration input. |
Which length to choose
| Result | Suggested length |
|---|---|
| A social reel | 15 seconds |
| A short-form video | 30 to 60 seconds |
| An explainer video | 60 to 180 seconds |
| A single generated clip | 4 to 15 seconds, depending on the model |
Tips
- Set many clips in one place. Connect one Duration node to the Settings input of several video nodes, and change their length once.
- Plan scenes with the length. A 60-second script with 10 scenes gives about 6 seconds per scene, which suits most video models.
- Check the model's lengths. Every video model page lists the lengths the model can make.
Frequently asked questions
Does the Duration node set the length of my clips?
Yes, when it is connected to the Settings input of Generate Video or Generate Video Pro. Generate Video runs the nearest length its model makes, so 60 seconds runs as 15 seconds on Seedance 2 and as 8 seconds on VEO 3.1. On Generate Video Pro, it is the total length of the video.
Why is a video not exactly the length I set?
Many video models offer fixed lengths, such as 4, 6 or 8 seconds. A length from a Duration node runs as the nearest length the model makes, and a tie goes to the shorter one. The chip on the video node shows the length it runs.
How long should a scripted video be?
About 15 seconds for a social reel, 30 to 60 seconds for a short-form video and 60 to 180 seconds for an explainer. Set it as Target Length in Generate Script, or connect a Duration node to its Duration input.
Does the Duration node cost credits?
No. It only holds a value and never runs a model. A video node that it is connected to is priced at the length that node runs.
Related
Generation settings nodes
Generate Video
Generate Video Pro
Generate Script
Video models
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Aspect Ratio
The Aspect Ratio node holds one frame shape, such as 16:9 or 9:16. Wired into the Settings input of Generate Image or a video node, it sets their ratio.
Motion
The Motion node sets how much a clip moves. Connect it to the Settings input of Generate Video or Generate Video Pro to add a motion clause to the prompt.