Extend Veo3.1 Video
POST
/api/v1/veo/extend
| Capability | Details |
|---|---|
| Smart Extension | Generate new video segments based on existing videos and text prompts |
| Seamless Connection | Extended videos naturally connect with the original video |
| Flexible Control | Precisely control the style and actions of extended content through prompts |
| High-Quality Output | Maintain the same quality and style as the original video |
| Audio Track | Extended videos default to background audio, consistent with the original video |
Why our Veo 3.1 Video Extension is different
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Video Extension Workflow
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taskId from the original video generation task2.
prompt to detail how you want the video to be extended3.
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Extension Features
Through the video extension feature, you can:
Important Notes
Best Practices
Prompt Writing Suggestions
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Technical Recommendations
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Important Notes
Important Limitations
Extended Video Features
Troubleshooting
Callbacks
Request
Body Params application/jsonRequired
Responses
Request Request Example
Shell
JavaScript
Java
Swift
curl --location --request POST 'https://api.kie.ai/api/v1/veo/extend' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
"taskId": "veo_task_abcdef123456",
"prompt": "The dog continues running through the park, jumping over obstacles and playing with other dogs",
"seeds": 12345,
"model": "fast",
"watermark": "MyBrand",
"callBackUrl": "https://your-callback-url.com/veo-extend-callback"
}'Response Response Example
200 - Example 1
{
"code": 200,
"msg": "success",
"data": {
"taskId": "veo_extend_task_xyz789"
}
}