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MODEL ID klingai:kling@o1
api-only

Kling VIDEO O1 Pro

Kling AI
by Kling AI

Kling VIDEO O1 Pro is a unified multimodal video foundation model for controllable generation and instruction based editing. It supports text prompts, visual references, and video input so developers can build high control pipelines for pacing, transitions, object changes, and style revisions.

Kling VIDEO O1 Pro

API Options

Platform-level options for task execution and delivery.

taskType

string required value: videoInference

Identifier for the type of task being performed

taskUUID

string required UUID v4

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

outputType

string default: URL

Video output type.

Allowed values 1 value

outputFormat

string default: MP4

File format for the generated video.

Allowed values 3 values

outputQuality

integer min: 20 max: 99 default: 95

Compression quality of the output. Higher values preserve quality but increase file size.

webhookURL

string URI

Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

Learn more 1 resource

deliveryMethod

string default: async

Determines how the API delivers task results.

Allowed values 1 value
Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse. Required for long-running tasks like video generation.
Learn more 1 resource

uploadEndpoint

string URI

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

Common use cases:

  • Cloud storage: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
  • CDN integration: Upload to content delivery networks for immediate distribution. 
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg

The content data will be sent as the request body to the specified URL when generation is complete.

safety

object

Content safety checking configuration for video generation.

Properties 2 properties
safety » checkContent

checkContent

boolean default: false

Enable or disable content safety checking. When enabled, defaults to 'fast' mode.

safety » mode

mode

string default: none

Safety checking mode for video generation.

Allowed values 3 values
Disables checking.
Checks key frames.
Checks all frames.

ttl

integer min: 60

Time-to-live (TTL) in seconds for generated content. Only applies when outputType is 'URL'.

includeCost

boolean default: false

Include task cost in the response.

numberResults

integer min: 1 max: 20 default: 1

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

Inputs

Input resources for the task (images, audio, etc). These must be nested inside the inputs object.
inputs » referenceImages

referenceImages

array of strings min items: 1max items: 7

List of reference images (UUID, URL, Data URI, or Base64).

inputs » frameImages

frameImages

array of objects min items: 1max items: 2

For image-to-video workflows, each item can be a plain image input (UUID, URL, Data URI, or Base64), or an object with an explicit frame position.

When no frame is specified, images are distributed automatically:

  • 1 image: First frame.
  • 2 images: First and last frames.
  • 3+ images: First and last frames, intermediates evenly spaced.
Properties 2 properties
inputs » frameImages » image

image

string required

Image input (UUID, URL, Data URI, or Base64).

inputs » frameImages » frame

frame

object

Target frame position for the image. Supports first and last frame.

Allowed values 4 values
First frame of the video.
Last frame of the video.
Frame index 0 (first frame).
Frame index -1 (last frame).
inputs » video

video

string

Source video for prompt-based editing. Dimensions and duration match the input video (UUID or URL).

inputs » referenceVideos

referenceVideos

array of strings items: 1

List of reference videos (UUID, URL).

Generation Parameters

Core parameters for controlling the generated content.

model

string required value: klingai:kling@o1

Identifier of the model to use for generation.

Learn more 3 resources

positivePrompt

string required min: 2 max: 2500

Text prompt describing elements to include in the generated output.

Learn more 2 resources

width

integer required* paired with height

Width of the generated media in pixels.

Learn more 2 resources

height

integer required* paired with width

Height of the generated media in pixels.

Learn more 2 resources

duration

integer default: 5

Duration of the generation in seconds. Total frames = duration × fps.

Provider Settings

Parameters specific to this model provider. These must be nested inside the providerSettings.klingai object.
providerSettings » klingai » fast

fast

boolean default: false

Enable fast generation mode. Requires input videos between 6-20 seconds (standard mode: 3-10 seconds). Only applies to video editing workflows.

providerSettings » klingai » keepOriginalSound

keepOriginalSound

boolean default: false

Maintain the original sound from the reference video.

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