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Generate a smooth video that transitions from a start frame to an end frame with Kling I2V Frames V2.5. Ideal for controlled keyframe animation, morphing transitions, and product shots.
Property Value Provider Kling Model Kling I2V Frames V2.5 Capability Start-End Frame to Video Base Cost 50,000 micro-cents/second ($0.05/sec) Processing Time ~240 seconds
Request Body
Model slug. Use kling/kling-i2v-frames-v25/start-end-frame-to-video.
Input parameters for start-end frame video generation. Text description guiding the transition (max 2500 characters).
URL of the start frame image.
URL of the end frame image.
Generation quality. Default: std. Options: std, pro.
Video duration in seconds. Default: 5. Options: 5, 10.
Video aspect ratio. Default: 16:9. Options: 16:9, 9:16, 1:1.
Optional random seed for reproducible results.
HTTPS URL to receive a webhook notification when the job completes or fails.
Pricing
Base cost: 50,000 micro-cents per second ($0.05/sec)
finalCost = baseCost × quality × duration
Factor Option Multiplier Quality std1x pro1.5x Duration 55x 1010x
Default cost: std quality, 5 seconds = 50,000 × 1 × 5 = 250,000 micro-cents ($0.25)
Response
Unique identifier for the submitted job.
Initial job status. Always "pending" on successful submission.
ISO 8601 timestamp of the estimated completion time.
The cost of the job in micro-cents.
Code Examples
curl -X POST https://api.muvi.video/v1/jobs/submit \
-H "Authorization: Bearer $PIXELBYTE_API_KEY " \
-H "Content-Type: application/json" \
-d '{
"model": "kling/kling-i2v-frames-v25/start-end-frame-to-video",
"input": {
"prompt": "A flower blooms from bud to full blossom",
"image_url": "https://example.com/image.jpg",
"end_image_url": "https://example.com/image.jpg",
"quality": "std",
"duration": "5",
"aspect_ratio": "16:9"
}
}'