GetRun / Video / Kling 4.0 Flash Keyframe to Video
Kling 4.0 Flash Keyframe to Video
AI Video Models by Kling AI · From Rp1,374.48 / second without video referensi · about 30 to 600 seconds · available now
Create up to 20 second Kling 4.0 Flash videos with synchronized audio and character references.
Capabilities
720p
3–20 seconds
Native audio
Sample output
Sample output from Kling 4.0 Flash Keyframe to Video, made on GetRun.
Input parameters
Name
Type
Required
prompt
string
yes
duration
integer
no
resolution
720p
no
aspect_ratio
16:9 | 9:16 | 1:1 | 21:9
no
first_frame_url
string
no
The complete schema is published as JSON Schema at GET https://getrun.id/v1/models.
How to call it through the API
Try Kling 4.0 Flash Keyframe to Video in Studio, or call it from code: POST https://getrun.id/v1/tasks with body {"model": "kling-4.0/flash-keyframe-to-video", "input": {…}} and an Idempotency-Key header, then poll GET https://getrun.id/v1/tasks/{task_id}. The details are in the model documentation.
What does Kling 4.0 Flash Keyframe to Video cost on GetRun?
Kling 4.0 Flash Keyframe to Video is priced at From Rp1,374.48 / second without video referensi and billed from a rupiah balance as you use it, with no required subscription. The estimated cost is shown before it runs, and failed tasks are never charged.
How do I call Kling 4.0 Flash Keyframe to Video through the API?
Send POST https://getrun.id/v1/tasks with an Authorization: Bearer header and an Idempotency-Key, body {"model": "kling-4.0/flash-keyframe-to-video", "input": {...}}, then poll GET https://getrun.id/v1/tasks/{task_id} every 2 to 5 seconds until the status is succeeded.
How long does Kling 4.0 Flash Keyframe to Video take per request?
Kling 4.0 Flash Keyframe to Video typically takes 30 to 600 seconds, depending on load and the input parameters.
Are Kling 4.0 Flash Keyframe to Video results stored permanently?
No. Output URLs are served from a CDN and expire after 7 days, so copy the files to your own storage if you need them longer.