Kling 4.0 Flash Keyframe to Video API API Pricing
Animate a first-frame image into a Kling 4.0 Flash video. 3-20s clips at 720p with native audio. Pay per generation, no subscription.
About Kling 4.0 Flash Keyframe to Video API
Kling 4.0 Flash Keyframe-to-Video animates a first-frame image into a 3-20 second 720p clip with native audio. Mention the frame in your prompt with @first_frame and describe how the scene moves; the output follows the image's aspect ratio. If you leave the frame out, the request behaves as plain text-to-video. Flash accepts a first frame only: middle keyframes and a last frame are not supported. For multi-frame sequences, 1080p and 30-second clips use [Kling 4.0 Keyframe to Video](/playground/kling-4.0-keyframe-to-video); for characters and references use [Kling 4.0 Flash Reference to Video](/playground/kling-4.0-flash-reference-to-video).
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Estimate monthly API spend and compare absolute developer savings.
$940.00
$0.094 per second ($0.47 per 5s clip)$300.00
$0.03 per runDetailed Pricing Breakdown
| Provider | Estimated Rate | Notes |
|---|---|---|
| muapiapp | $0.094 per second ($0.47 per 5s clip) | $0.094/s of output video at 720p. |
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