Kling 4.0 Reference to Video
Keep people, products and style consistent with Kling 4.0 reference to video. Cite reference images as @image_1, @image_2 and reference clips as @video_1 to copy motion or camera work, then describe the scene. 3 to 30 seconds with native audio at 720p or 1080p.
24% less than the priciest provider (5 compared). Same model, same output.
As of , Kling 4.0 Reference to Video costs from $0.12 per second on Scenetra, billed at provider cost with no markup. Each run is priced across 12 providers and runs on the cheapest one that supports your settings.
Reference images (https URLs) for characters, objects or style, cited as @image_1, @image_2...
Reference clips (https URLs) for motion or camera work, cited as @video_1. Billed for their seconds (up to 30s combined).
Resolution
720p or 1080p.
Aspect Ratio
16:9, 9:16, 1:1 or 21:9 widescreen.
Duration
Length of the video in seconds (3-30). Billed per second.
Keep Original Sound
Keep the reference video's audio instead of generating new sound.
24% less than the priciest provider (5 compared). Same model, same output.
Your result renders here.
Use Kling 4.0 Reference to Video via the API
One REST call per generation, routed to the cheapest provider and billed in credits at provider cost. Endpoints, request fields, code examples and pricing are in the full API reference.
What makes Kling 4.0 Reference to Video different
30-second cinematic takes with sound
Kling 4.0 generates any length from 3 to 30 seconds in one continuous shot, with native audio. A 10-second 720p clip is $1.20, a full 30 seconds $3.60.
Direct the story with keyframes
Image to video takes a first frame, up to 8 keyframes and a last frame, up to 10 pinned moments in total. Cite them in the prompt as @first_frame, @keyframe_1 and @last_frame to tell the model what happens between them.
Consistent characters from references
Reference to video keeps people, products and objects consistent from your images, and can copy motion or camera work from a reference clip. Save a character once in Scenetra and reuse it by name across videos.
Widescreen and vertical in one model
16:9, 9:16, 1:1 and cinematic 21:9 are all supported at 720p and 1080p. Every run goes to the cheapest provider for your settings, billed at cost with 0% markup.
Parameters
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt* | text | Describe the scene, action and camera, and any sound. Audio is generated natively. | — |
| Aspect Ratio | select | 16:9, 9:16, 1:1 or 21:9 widescreen.16:9 · 9:16 · 1:1 · 21:9 | 16:9 |
| Resolution | select | 720p or 1080p.720p · 1080p | 720p |
| Duration | select | Length of the video in seconds (3-30). Billed per second.3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 · 21 · 22 · 23 · 24 · 25 · 26 · 27 · 28 · 29 · 30 | 5 |
Pricing
From $0.12 per second
Pay per generation — only pay for what you use.
720p
$0.12/s
per second
1080p
$0.19/s
per second
What a video costs
| Duration | 720p | 1080p |
|---|---|---|
| 5 seconds | $0.60 | $0.95 |
| 10 seconds | $1.20 | $1.90 |
| 15 seconds | $1.80 | $2.85 |
| 30 seconds | $3.60 | $5.70 |
Use cases
Film & storytelling
- 30-second single-shot scenes
- Keyframed story beats
- 21:9 widescreen trailers
- Previz with sound
Marketing & ads
- Product hero shots from references
- Brand characters across spots
- Vertical 9:16 ads
- Before-and-after transitions
Social content
- Dance and motion copies from a clip
- Recurring characters for series
- Loopable mood shots
- Talking characters with audio
E-commerce
- Product spins from photos
- Model try-on clips
- Lifestyle scenes
- Seasonal campaign variants
Frequently asked questions
Can I copy motion from a video?+
Yes. Add a reference clip and cite it as @video_1, for example "@image_1 dances like @video_1". Reference clips are billed for their seconds at some providers.
Can I keep the reference clip's sound?+
Yes, turn on keep_original_sound to use the clip's audio instead of generating new sound.
Related models
Kling 3.0 Pro
Kuaishou's flagship video generation model delivering stunning visual fidelity. Kling 3.0 Pro supports text-to-video, image-to-video with start/end frames, element references for character consistency, and native audio generation.
View model →Kling 3.0 Standard
Kuaishou's standard-tier video generation model offering text-to-video and image-to-video with support for start/end frames, element references for character consistency, and native audio generation. A cost-effective alternative to Kling 3.0 Pro.
View model →Seedance 2
ByteDance's Seedance 2.0 generates cinematic videos from text prompts with synchronized audio — voice, sound effects, and background music. Pick any duration from 4 to 15 seconds and resolutions up to 1080p, with per-second pricing that keeps 480p drafting cheap.
View model →Gemini Omni 1.2 Flash
Google's Gemini Omni 1.2 Flash generates 3-15 second videos with native audio. Dialogue, music and sound effects are rendered in the same pass as the picture and directed through your prompt. Draft at 360p, render at 720p, or upscale to 1080p and 4K, in 16:9 or 9:16. Five modes: text, image (first and last frame), references, edit and extend.
View model →Start creating with Kling 4.0 Reference to Video
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