Kling AI/ VideoPlanned

Kling 4.0 API

kling-v4

Generate 3–30 second videos with stereo audio. First/last frames, keyframes, multimodal references, video editing and extension.

Text to video
Image to video
Multi-reference
First / last frame

Read API docs

This route is published for integration planning and is not accepting requests yet.

OUTPUT GALLERY

Kling 4.0 in action

Real Kling 4.0 outputs across text-to-image, multilingual text rendering, natural-language editing, and multi-reference composition.

Prompt: 工作流程概念圖；不是 Kling 輸出樣本。慢慢地從第一個作品移動到最後一個作品。只需平穩移動相機即可保留產品形狀和標籤。

Prompt: 工作流程概念圖；不是 Kling 輸出樣本。 @Image1中的人沿著海岸行走。跟隨@Video1的攝影機移動並保持服裝一致。

Prompt: 工作流程概念圖；不是 Kling 輸出樣本。將@Video1改為下雪的冬夜。保留主體、動作和相機路徑。

CAPABILITIES

What this route supports

Use one stable PixMind model ID while keeping provider-specific setup out of your application.

Text to video

Turn a complete shot brief into a generated video sequence.

Image to video

Animate a supplied image while preserving its subject and visual direction.

Multi-reference

Carry subjects, products, or visual direction across reference-led outputs.

First / last frame

Control a transition by defining both the opening and closing composition.

Native audio

Generate an audio-capable result on supported video routes.

TECHNICAL SPECS

Supported parameters

Inputs, supported configurations, and request parameters for the Kling 4.0 API.

持續時間: 3–30s
輸出層: 720p / 1080p
第一幀和最後一幀: 設定開始影像和可選的結束影像。該 API 還接受最多八個中間關鍵影格。
多式聯運參考: 最多使用十張圖像和五個視頻，其中參考視頻最多三十秒。該 API 還接受三個 5-30 秒的音訊剪輯；所有參考文獻總計最多十五項資產。

MODEL WORKFLOWS

What to build with Kling 4.0

Choose a task that matches the live route capabilities, then adapt one of these prompt starters.

Best-fit tasks

Turn a complete shot brief into a generated video sequence.
Animate a supplied image while preserving its subject and visual direction.
Carry subjects, products, or visual direction across reference-led outputs.
Control a transition by defining both the opening and closing composition.

Prompt starters

Replace the brackets

Starter

Use the reference images to keep [person/product] consistent. Create a coordinated [number]-image campaign across [scenes] in one visual direction.

Starter

Create one [duration]-second shot of [subject] in [setting]. The subject [action]. Camera: [movement and framing]. Lighting: [direction and mood]. Keep motion physically coherent and the shot continuous.

Starter

Animate the supplied image into a [duration]-second shot. Preserve [subject details]. Add [subject motion] and [camera motion]. Keep the original composition, lighting, and visual identity stable.

Starter

Start exactly from the first frame and end on the supplied last frame. Build one continuous transition where [subject or camera action] connects both compositions without cuts.

MODEL SELECTION

Choose Kling 4.0 when the job fits

Compare nearby live routes by task, supported capability, and current entry price before you lock a model ID into production.

Model	Best for	Key capabilities	Entry price	Availability	Action
Kling 4.0 Kling AI · current page	Turn a complete shot brief into a generated video sequence.	Text to video · Image to video · Multi-reference	Pricing coming soon	Planned	Selected
Kling 3.0 Turbo Kling AI	Turn a complete shot brief into a generated video sequence.	Text to video · Image to video	$0.13 / sec	Available	View route
Happy Horse 1.0 MiniMax	Turn a complete shot brief into a generated video sequence.	Text to video · Image to video · Multi-reference	$0.19 / sec	Available	View route
Happy Horse 1.1 HappyHorse	Turn a complete shot brief into a generated video sequence.	Text to video · Image to video	$0.24 / sec	Available	View route

Capabilities and starting prices are a current PixMind route snapshot. The accepted request contains the final configuration and billing quote.

GET STARTED

From playground to production

Create a scoped key

Create an API key with the permissions required by this model.

Send the request

Use the model ID and endpoint shown above from your backend service.

Track the task

Read language-model output from the response. For image and video requests, use the returned task ID to retrieve the result.

FAQ

Kling 4.0 API questions

我應該使用哪個模型 ID 和 API 端點？+

將 kling-v4 提交至 POST /api-platform/v1/generations。在 GET /api-platform/v1/tasks/{taskId} 处轮询返回的 PixMind taskId。

如何選擇引用、編輯或擴充模式？+

设置 omni_reference_task_type 进行引用、编辑或扩展。编辑和扩展需要一个输入视频；分机不接受 aspect_ratio 或 audio_setting。

720p-投入定價是什麼意思？+

视频编辑和视频参考的费率为每计费秒 0.105 美元。没有持续时间的 3.04 秒编辑按 4 + 4 = 8 秒计费。

哪些 Kling 4.0 參數被拒絕？+

該航線拒絕 mode=std/pro/4k、negative_prompt、watermark=true 和 audio=false。驗證和媒體探測發生在計費之前；失敗的一代將全額退款。

What model ID should I use for the Kling 4.0 API?+

Use kling-v4 in the model field. This is the stable PixMind route identifier shown in the playground request JSON.

Which endpoint does the Kling 4.0 API use?+

Send POST requests to /v1/generations. Keep your API key on your server and pass it as a Bearer token.

Is the playground using a real API request?+

Yes. When you click Run model, PixMind forwards the displayed payload with the API key you entered. A successful request may create a paid task.

Does PixMind save the API key entered here?+

No. The playground keeps the key only in component memory and sends it for the current request; it is not written to browser storage.

Is API pricing the same as PixMind Studio pricing?+

No. API usage resolves through the apiPlatform pricing role and a separate pay-as-you-go ledger. Studio pricing includes the creation interface and product workflow services.

Why can the final price differ from the starting price?+

The entry price reflects the configuration displayed on this page. Resolution, duration, quality, audio, references, and output count can affect the final task price.

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