Omnihuman v2 generates video using an image of a human figure paired with an audio file. It produces vivid, high-quality videos where the character’s emotions and movements maintain a strong correlation with the audio.

bytedance/omnihuman/v2

Inference

Commercial use

Partner

Schema

Playground API Examples

bytedance/omnihuman/v2

Schema

bytedance/omnihuman/v2

Inference

Commercial use

Partner

Schema

Playground API Examples

About

Generate videos of human beings speaking a dialogue using ByteDance's OmniHuman 2.0 model.

This endpoint animates the person in the provided image to match the audio, optionally guided by a text prompt.

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("bytedance/omnihuman/v2", {
  input: {
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_image.png",
    audio_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_audio.mp3"
  },
  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("bytedance/omnihuman/v2", {
  input: {
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_image.png",
    audio_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_audio.mp3"
  },
  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("bytedance/omnihuman/v2", {
  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("bytedance/omnihuman/v2", {
  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#

prompt string

Optional text prompt for precise control of the scene, movements and camera. Supported languages: Chinese, English, Japanese, Korean, Spanish (Mexican) and Indonesian.

image_url string* required

The URL of the image used to generate the video. Format: jpeg, png, webp, bmp, tiff, gif, heic or heif. Max size: 30 MB. Aspect ratio (width/height) between 0.4 and 2.5; width and height between 300 and 6000 pixels.

audio_url string* required

The URL of the audio file to generate the video. Format: wav or mp3. Max size: 15 MB. Duration between 4 and 300 seconds.

{
  "image_url": "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_image.png",
  "audio_url": "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_audio.mp3"
}

Output#

video File* required

Generated video file

duration float* required

Duration of audio input/video output as used for billing.

{
  "video": {
    "url": "https://storage.googleapis.com/falserverless/example_outputs/omnihuman_v15_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.

About

Generate videos of human beings speaking a dialogue using ByteDance's OmniHuman 2.0 model.

This endpoint animates the person in the provided image to match the audio, optionally guided by a text prompt.

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("bytedance/omnihuman/v2", {
  input: {
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_image.png",
    audio_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_audio.mp3"
  },
  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("bytedance/omnihuman/v2", {
  input: {
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_image.png",
    audio_url: "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_audio.mp3"
  },
  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("bytedance/omnihuman/v2", {
  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("bytedance/omnihuman/v2", {
  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#

prompt string

Optional text prompt for precise control of the scene, movements and camera. Supported languages: Chinese, English, Japanese, Korean, Spanish (Mexican) and Indonesian.

image_url string* required

audio_url string* required

The URL of the audio file to generate the video. Format: wav or mp3. Max size: 15 MB. Duration between 4 and 300 seconds.

{
  "image_url": "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_image.png",
  "audio_url": "https://storage.googleapis.com/falserverless/example_inputs/omnihuman_v15_input_audio.mp3"
}

Output#

video File* required

Generated video file

duration float* required

Duration of audio input/video output as used for billing.

{
  "video": {
    "url": "https://storage.googleapis.com/falserverless/example_outputs/omnihuman_v15_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.

Bytedance Omnihuman V2 Image to Video API Docs | fal

bytedance/omnihuman/v2

Table of contents

Table of contents

bytedance/omnihuman/v2

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#

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#