Kwaivgi Kling V3.0 4k Text To Video

Playground

Kling V3.0 4K delivers top-tier 4K text-to-video generation with smooth motion, cinematic visuals, accurate prompt adherence, and optional audio. Supports flexible aspect ratios, multi-prompt, and element references. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing.

Features

Kling V3.0 4K is Kuaishou’s premium text-to-video model, delivering 4K cinematic video generation from natural language prompts. Supports flexible duration from 3 to 15 seconds, multiple aspect ratios, optional synchronized sound, and multi-prompt scene transitions.

Why Choose This?

4K quality
The highest visual fidelity and motion realism in the Kling V3.0 family.
Flexible duration
Generate videos from 3 to 15 seconds.
Aspect ratio control
Multiple options including 16:9, 9:16, and 1:1.
Sound generation
Optional synchronized sound effects generated alongside the video.
Negative prompt support
Specify what you don’t want in the video for more precise control.
Multi-prompt support
Chain prompt segments to guide scene transitions and complex scene compositions.

Parameters

Parameter	Required	Description
prompt	No	Text description of the desired scene, motion, camera style, and atmosphere.
negative_prompt	No	Elements to exclude from the video.
duration	No	Video length in seconds. Range: 3–15. Default: 5.
aspect_ratio	No	Video aspect ratio: 16:9 default, 9:16, 1:1.
cfg_scale	No	Prompt guidance strength. Range: 0–1. Default: 0.5.
sound	No	Generate synchronized sound alongside the video. Default: disabled.
shot_type	No	Editing mode: customize default or intelligent.
multi_prompt	No	Additional prompts for complex scene compositions.

How to Use

Write your prompt — Describe the scene, motion, camera movement, and mood in detail.
Add negative prompt optional — Specify elements you want to exclude.
Set duration — Choose any length from 3 to 15 seconds.
Choose aspect ratio — Select the format that fits your platform.
Adjust cfg_scale optional — Control how closely the output follows your prompt.
Enable sound optional — Generate synchronized audio alongside the video.
Add multi-prompt segments optional — Use additional prompt segments for more complex scene progression.
Submit — Generate, preview, and download your video.

Pricing

$0.42 per second of video, regardless of whether audio is on or off.

Duration	Cost
3s	$1.26
5s	$2.10
10s	$4.20
15s	$6.30

Best Use Cases

Premium Production — Cinematic scenes requiring the highest visual quality in 4K.
Marketing & Ads — High-end promotional videos with professional polish.
Film & Storytelling — Film-quality scenes with superior motion and detail.
Brand Content — Premium video content for brands demanding top-tier visuals.

Pro Tips

Use detailed, cinematic prompts — include lighting, camera angles, and motion descriptions.
Use negative_prompt to avoid common issues like blurry faces or unwanted elements.
Enable sound for environmental audio like rain, city ambience, or action effects.
Match aspect ratio to your target platform: 16:9 for YouTube, 9:16 for TikTok, 1:1 for feeds.
Use multi_prompt when you need more complex scene progression or transitions.

Kling V3.0 4K Image-to-Video — Animate still images with 4K quality.
Kling Video O3 4K Text-to-Video — Latest O3 generation with 4K quality.


## Authentication

For authentication details, please refer to the [Authentication Guide](/api-authentication).

## API Endpoints

### Submit Task & Query Result

<ApiTabs submitUrl={model.submitUrl} resultUrl={model.resultUrl} payload={model.defaultValues} />

## Parameters

### Task Submission Parameters

#### Request Parameters

<RequestParams params={model.params} />

#### Response Parameters

<SubmitResponse />

#### Result Request Parameters

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| id | string | Yes | - | Task ID |

#### Result Response Parameters

| Parameter | Type | Description |
|-----------|------|-------------|
| code | integer | HTTP status code (e.g., 200 for success) |
| message | string | Status message (e.g., "success") |
| data | object | The prediction data object containing all details |
| data.id | string | Unique identifier for the prediction |
| data.model | string | Model ID used for the prediction |
| data.outputs | array&lt;string \| object&gt; | Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model. |
| data.urls | object | Object containing related API endpoints |
| data.urls.get | string | URL to poll for the prediction result |
| data.status | string | Status: `created`, `processing`, `completed`, or `failed` |
| data.created_at | string | ISO timestamp of when the request was created |
| data.error | string | Error message (empty if no error occurred) |
| data.timings | object | Object containing timing details |
| data.timings.inference | integer | Inference time in milliseconds |

Overview