Kling O3 Omni generates new shots guided by an input reference video, preserving cinematic language such as motion, and camera style to produce seamless scene continuity.

fal-ai/kling-video/o3/pro/video-to-video/reference

Kling O3 Omni generates new shots guided by an input reference video, preserving cinematic language such as motion, and camera style to produce seamless scene continuity.

Learn more about Kling O3

Inference

Commercial use

Partner

Schema

Playground API

fal-ai/kling-video/o3/pro/video-to-video/reference

Schema

Kling O3 Omni generates new shots guided by an input reference video, preserving cinematic language such as motion, and camera style to produce seamless scene continuity.

fal-ai/kling-video/o3/pro/video-to-video/reference

Kling O3 Omni generates new shots guided by an input reference video, preserving cinematic language such as motion, and camera style to produce seamless scene continuity.

Learn more about Kling O3

Inference

Commercial use

Partner

Schema

Playground API

About

O3 Pro Video To Video

1. Calling the API#

Install the client#

The client provides a convenient way to interact with the model API.

npm install --save @fal-ai/client

Migrate to @fal-ai/client

The @fal-ai/serverless-client package has been deprecated in favor of @fal-ai/client. Install the new package and update your imports — see client setup.

Setup your API Key#

Set FAL_KEY as an environment variable in your runtime.

export FAL_KEY="YOUR_API_KEY"

Submit a request#

The client API handles the API submit protocol. It will handle the request status updates and return the result when the request is completed.

import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  input: {
    prompt: "Integrate @Element1 in the scene. Style video should be following watercolor style of @Image1",
    video_url: "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/video_reference.mp4"
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);

2. Authentication#

The API uses an API Key for authentication. It is recommended you set the FAL_KEY environment variable in your runtime when possible.

API Key#

In an environment where you cannot set environment variables, you can configure the API key manually on the client.

import { fal } from "@fal-ai/client";

fal.config({
  credentials: "YOUR_FAL_KEY"
});

Protect your API Key

When running code on the client-side (e.g. in a browser, mobile app or GUI applications), make sure to not expose your FAL_KEY. Instead, use a server-side proxy to make requests to the API. For more information, check out our server-side integration guide.

3. Queue#

Long-running requests

For long-running requests, such as training jobs or models with slower inference times, it is recommended to check the Queue status and rely on Webhooks instead of blocking while waiting for the result.

Submit a request#

The client API provides a convenient way to submit requests to the model.

import { fal } from "@fal-ai/client";

const { request_id } = await fal.queue.submit("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  input: {
    prompt: "Integrate @Element1 in the scene. Style video should be following watercolor style of @Image1",
    video_url: "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/video_reference.mp4"
  },
  webhookUrl: "https://optional.webhook.url/for/results",
});

Fetch request status#

You can fetch the status of a request to check if it is completed or still in progress.

import { fal } from "@fal-ai/client";

const status = await fal.queue.status("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b",
  logs: true,
});

Get the result#

Once the request is completed, you can fetch the result. See the Output Schema for the expected result format.

import { fal } from "@fal-ai/client";

const result = await fal.queue.result("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b"
});
console.log(result.data);
console.log(result.requestId);

4. Files#

Some attributes in the API accept file URLs as input. Whenever that's the case you can pass your own URL or a Base64 data URI.

Data URI (base64)#

You can pass a Base64 data URI as a file input. The API will handle the file decoding for you. Keep in mind that for large files, this alternative although convenient can impact the request performance.

Hosted files (URL)#

You can also pass your own URLs as long as they are publicly accessible. Be aware that some hosts might block cross-site requests, rate-limit, or consider the request as a bot.

Uploading files#

We provide a convenient file storage that allows you to upload files and use them in your requests. You can upload files using the client API and use the returned URL in your requests.

import { fal } from "@fal-ai/client";

const file = new File(["Hello, World!"], "hello.txt", { type: "text/plain" });
const url = await fal.storage.upload(file);

Auto uploads

The client will auto-upload the file for you if you pass a binary object (e.g. File, Data).

Read more about file handling in our file upload guide.

5. Schema#

Input#

enable_safety_checker boolean

Disabling safety checks requires account authorization; unauthorized requests are always checked. Default value: true

prompt string* required

Text prompt for video generation. Reference video as @Video1.

video_url string* required

Reference video URL. Only .mp4/.mov formats, 3-15s duration, 720-3840px resolution, max 200MB.

image_urls list<string>

Reference images for style/appearance. Reference in prompt as @Image1, @Image2, etc. Maximum 4 total (elements + reference images) when using video.

keep_audio boolean

Whether to keep the original audio from the reference video. Default value: true

elements list<KlingV3ImageElementInput>

Elements (characters/objects) to include. Reference in prompt as @Element1, @Element2.

shot_type string

The type of multi-shot video generation. Default value: "customize"

aspect_ratio AspectRatioEnum

Aspect ratio. Default value: "auto"

Possible enum values: auto, 16:9, 9:16, 1:1

duration Enum

Video duration in seconds (3-15s for reference video).

Possible enum values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15

{
  "enable_safety_checker": true,
  "prompt": "Integrate @Element1 in the scene. Style video should be following watercolor style of @Image1",
  "video_url": "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/video_reference.mp4",
  "image_urls": [
    "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/image_url1.jpg",
    "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/image_url2.jpg"
  ],
  "keep_audio": false,
  "elements": [
    {
      "reference_image_urls": [
        "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/element1_reference1.png"
      ],
      "frontal_image_url": "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/element1_front.png"
    }
  ],
  "shot_type": "customize",
  "aspect_ratio": "auto",
  "duration": "5"
}

Output#

video File* required

The generated video.

{
  "video": {
    "file_name": "output.mp4",
    "file_size": 15809901,
    "content_type": "video/mp4",
    "url": "https://storage.googleapis.com/falserverless/example_outputs/kling-o3/pro-v2v-reference/output.mp4"
  }
}

Other types#

File#

url string* required

The URL where the file can be downloaded from.

content_type string

The mime type of the file.

file_name string

The name of the file. It will be auto-generated if not provided.

file_size integer

The size of the file in bytes.

KlingV3ImageElementInput#

frontal_image_url string

The frontal image of the element (main view).

reference_image_urls list<string>

Additional reference images from different angles. 1-3 images supported. At least one image is required.

Related Models

About

O3 Pro Video To Video

1. Calling the API#

Install the client#

The client provides a convenient way to interact with the model API.

npm install --save @fal-ai/client

Migrate to @fal-ai/client

The @fal-ai/serverless-client package has been deprecated in favor of @fal-ai/client. Install the new package and update your imports — see client setup.

Setup your API Key#

Set FAL_KEY as an environment variable in your runtime.

export FAL_KEY="YOUR_API_KEY"

Submit a request#

The client API handles the API submit protocol. It will handle the request status updates and return the result when the request is completed.

import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  input: {
    prompt: "Integrate @Element1 in the scene. Style video should be following watercolor style of @Image1",
    video_url: "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/video_reference.mp4"
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);

2. Authentication#

The API uses an API Key for authentication. It is recommended you set the FAL_KEY environment variable in your runtime when possible.

API Key#

In an environment where you cannot set environment variables, you can configure the API key manually on the client.

import { fal } from "@fal-ai/client";

fal.config({
  credentials: "YOUR_FAL_KEY"
});

Protect your API Key

3. Queue#

Long-running requests

Submit a request#

The client API provides a convenient way to submit requests to the model.

import { fal } from "@fal-ai/client";

const { request_id } = await fal.queue.submit("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  input: {
    prompt: "Integrate @Element1 in the scene. Style video should be following watercolor style of @Image1",
    video_url: "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/video_reference.mp4"
  },
  webhookUrl: "https://optional.webhook.url/for/results",
});

Fetch request status#

You can fetch the status of a request to check if it is completed or still in progress.

import { fal } from "@fal-ai/client";

const status = await fal.queue.status("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b",
  logs: true,
});

Get the result#

Once the request is completed, you can fetch the result. See the Output Schema for the expected result format.

import { fal } from "@fal-ai/client";

const result = await fal.queue.result("fal-ai/kling-video/o3/pro/video-to-video/reference", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b"
});
console.log(result.data);
console.log(result.requestId);

4. Files#

Some attributes in the API accept file URLs as input. Whenever that's the case you can pass your own URL or a Base64 data URI.

Data URI (base64)#

Hosted files (URL)#

You can also pass your own URLs as long as they are publicly accessible. Be aware that some hosts might block cross-site requests, rate-limit, or consider the request as a bot.

Uploading files#

We provide a convenient file storage that allows you to upload files and use them in your requests. You can upload files using the client API and use the returned URL in your requests.

import { fal } from "@fal-ai/client";

const file = new File(["Hello, World!"], "hello.txt", { type: "text/plain" });
const url = await fal.storage.upload(file);

Auto uploads

The client will auto-upload the file for you if you pass a binary object (e.g. File, Data).

Read more about file handling in our file upload guide.

5. Schema#

Input#

enable_safety_checker boolean

Disabling safety checks requires account authorization; unauthorized requests are always checked. Default value: true

prompt string* required

Text prompt for video generation. Reference video as @Video1.

video_url string* required

Reference video URL. Only .mp4/.mov formats, 3-15s duration, 720-3840px resolution, max 200MB.

image_urls list<string>

Reference images for style/appearance. Reference in prompt as @Image1, @Image2, etc. Maximum 4 total (elements + reference images) when using video.

keep_audio boolean

Whether to keep the original audio from the reference video. Default value: true

elements list<KlingV3ImageElementInput>

Elements (characters/objects) to include. Reference in prompt as @Element1, @Element2.

shot_type string

The type of multi-shot video generation. Default value: "customize"

aspect_ratio AspectRatioEnum

Aspect ratio. Default value: "auto"

Possible enum values: auto, 16:9, 9:16, 1:1

duration Enum

Video duration in seconds (3-15s for reference video).

Possible enum values: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15

{
  "enable_safety_checker": true,
  "prompt": "Integrate @Element1 in the scene. Style video should be following watercolor style of @Image1",
  "video_url": "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/video_reference.mp4",
  "image_urls": [
    "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/image_url1.jpg",
    "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/image_url2.jpg"
  ],
  "keep_audio": false,
  "elements": [
    {
      "reference_image_urls": [
        "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/element1_reference1.png"
      ],
      "frontal_image_url": "https://storage.googleapis.com/falserverless/example_inputs/kling-o3/pro-v2v-reference/element1_front.png"
    }
  ],
  "shot_type": "customize",
  "aspect_ratio": "auto",
  "duration": "5"
}

Output#

video File* required

The generated video.

{
  "video": {
    "file_name": "output.mp4",
    "file_size": 15809901,
    "content_type": "video/mp4",
    "url": "https://storage.googleapis.com/falserverless/example_outputs/kling-o3/pro-v2v-reference/output.mp4"
  }
}

Other types#

File#

url string* required

The URL where the file can be downloaded from.

content_type string

The mime type of the file.

file_name string

The name of the file. It will be auto-generated if not provided.

file_size integer

The size of the file in bytes.

KlingV3ImageElementInput#

frontal_image_url string

The frontal image of the element (main view).

reference_image_urls list<string>

Additional reference images from different angles. 1-3 images supported. At least one image is required.

Related Models

Kling O3 Reference [Pro] Video to Video API Docs | fal

fal-ai/kling-video/o3/pro/video-to-video/reference

Table of contents

Table of contents

fal-ai/kling-video/o3/pro/video-to-video/reference

About

1. Calling the API#

Install the client#

Migrate to @fal-ai/client

Setup your API Key#

Submit a request#

2. Authentication#

API Key#

Protect your API Key

3. Queue#

Long-running requests

Submit a request#

Fetch request status#

Get the result#

4. Files#

Data URI (base64)#

Hosted files (URL)#

Uploading files#

Auto uploads

5. Schema#

Input#

Output#

Other types#

File#

KlingV3ImageElementInput#

Related Models

Table of contents

About

1. Calling the API#

Install the client#

Migrate to @fal-ai/client

Setup your API Key#

Submit a request#

2. Authentication#

API Key#

Protect your API Key

3. Queue#

Long-running requests

Submit a request#

Fetch request status#

Get the result#

4. Files#

Data URI (base64)#

Hosted files (URL)#

Uploading files#

Auto uploads

5. Schema#

Input#

Output#

Other types#

File#

KlingV3ImageElementInput#

Related Models