google/veo3.1-fast/video-extend-official-stable

POST

/openapi/v2/rhart-video-v3.1-fast-official/video-extend

Veo 3.1 Video Extend (Fast) is optimized for high-speed video continuation, prioritizing low latency and rapid iteration. It allows users to seamlessly append 7-second segments to existing Veo clips, returning a single merged file. Sharing the same logic as the standard model, it supports up to 20 chained extensions (max 148s). This endpoint is ideal for rapid story development, testing ad variations, and accelerating production feedback loops. Official-stable: stable and highly efficient, with pricing lower than purchasing directly from the official model provider.

Request

Authorization

Header Params

Body Params application/jsonRequired

Example

{
    "video": "https://www.runninghub.cn/view?filename=66240b5f7887bc374c1770d0bf7ac1f51f3b518798513f1fb02b08f6ae0483b2.mp4&type=input&subfolder=&Rh-Comfy-Auth=eyJ1c2VySWQiOiIzZjY1MTNlNWEwNjY1N2I4OGYyNjU5NTEzYmU3ZDM0YyIsInNpZ25FeHBpcmUiOjE3NzE1Nzg3MzIyOTAsInRzIjoxNzcwOTczOTMyMjkwLCJzaWduIjoiODY1Zjc3NDg3ODkzYzk2NjA4MWE4NTM1OTYxYzg3MTUifQ==&Rh-Identify=3f6513e5a06657b88f2659513be7d34c&rand=0.08173910540910301",
    "resolution": "720p"
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://www.runninghub.ai/openapi/v2/rhart-video-v3.1-fast-official/video-extend' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Content-Type: application/json' \
--data-raw '{
    "video": "https://www.runninghub.cn/view?filename=66240b5f7887bc374c1770d0bf7ac1f51f3b518798513f1fb02b08f6ae0483b2.mp4&type=input&subfolder=&Rh-Comfy-Auth=eyJ1c2VySWQiOiIzZjY1MTNlNWEwNjY1N2I4OGYyNjU5NTEzYmU3ZDM0YyIsInNpZ25FeHBpcmUiOjE3NzE1Nzg3MzIyOTAsInRzIjoxNzcwOTczOTMyMjkwLCJzaWduIjoiODY1Zjc3NDg3ODkzYzk2NjA4MWE4NTM1OTYxYzg3MTUifQ==&Rh-Identify=3f6513e5a06657b88f2659513be7d34c&rand=0.08173910540910301",
    "resolution": "720p"
}'

Responses

🟢200成功

application/json

Task result query endpoint: /openapi/v2/query

Body

Examples

Submit response exampleTask success response example

{
    "taskId": "2013508786110730241",
    "status": "RUNNING",
    "errorCode": "",
    "errorMessage": "",
    "results": null,
    "clientId": "f828b9af25161bc066ef152db7b29ccc",
    "promptTips": "{\"result\": true, \"error\": null, \"outputs_to_execute\": [\"4\"], \"node_errors\": {}}"
}

Modified at 2026-03-10 12:42:16

google/veo3.1-pro/text-to-video-official-stable

google/veo3.1-pro/video-extend-official-stable