Video
Veo 3.1
Extend Veo-Created Videos up to 30 seconds
- Video editing
Sign in to create. Review the credit cost in the studio before running.
Catalog preview for Veo 3.1. Review your own result before publishing.
A starting point.
Select the operation for your source, upload any required media, and describe the result you want.
Before you publish.
Watch the entire clip and compare motion, identity, transitions and audio with your inputs.
Review the quote before running. A failed generation releases its reserved credits. Download the results you want to keep; stored media is retained for 30 days.
Inputs and settings
Extend a 720p or 1080p source in 16:9 or 9:16. The new segment is seven seconds at 720p. generate_audio changes the price; check the quote after choosing audio.
Supported inputs
These fields come from the current studio form for veo3.1/extend-video. Other modes may require different inputs.
| Input | Type | Requirement | Options and limits |
|---|---|---|---|
prompt | Text | Required | Max. characters: 20000 |
video_url | Text | Required | — |
aspect_ratio | Text | Optional | auto, 16:9, 9:16 |
auto_fix | On/off | Optional | — |
generate_audio | On/off | Optional | — |
negative_prompt | Text | Optional | — |
safety_tolerance | Text | Optional | — |
seed | Whole number | Optional | — |
Check the full model schema for all options and cross-field rules. Request a quote for your selected settings before generating.
Use Veo 3.1 through the API.
Start with this model ID for the endpoint featured on this page:
veo3.1/extend-video
Input requirements belong to this model ID. Check a different mode’s schema separately when switching modes.
Check the current model schema for supported inputs and options. Other tasks may use different model IDs.
From quote to result.
Request a credit quote for your input and settings before submitting a generation. A sample output or the price of another model is not a quote for your request.
Follow the generation workflow, then poll the job for its status and result. The API and studio use the same balance.