Remove video backgrounds in real time with Bria’s VRMBG 3.0 model. Built for live streaming, real-time video apps, content creation, and low-latency workflows that need fast, accurate background removal.

bria/video/background-removal/realtime

Inference

Commercial use

Partner

Schema

LLMs

Playground API

Loading API documentation…

bria/video/background-removal/realtime

Schema

LLMs

Loading API documentation…

bria/video/background-removal/realtime

Inference

Commercial use

Partner

Schema

LLMs

Playground API

1. Calling the API

2. Authentication

API Key

4. Files

5. Schema

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"

Real-time via WebSockets#

This model has a real-time mode via WebSockets, supported by fal.realtime.connect.

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

const connection = fal.realtime.connect("bria/video/background-removal/realtime", {
  onResult: (result) => {
    console.log(result);
  },
  onError: (error) => {
    console.error(error);
  },
  // Fetch short-lived JWT token from your backend
  tokenProvider: async (app) => {
    const response = await fetch("/api/fal/realtime-token", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ app }),
    });
    return response.text();
  },
  tokenExpirationSeconds: 10,
});

connection.send({});

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.

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#

blur_strength integer

Background blur strength, 0-100 (used when background_type is 'blur'). Default value: 50

background_color BackgroundColorEnum

Solid background colour (used when background_type is 'color'). Default value: "Black"

Possible enum values: Black, White, Gray, Red, Green, Blue, Yellow, Cyan, Magenta, Orange

background_type BackgroundTypeEnum

How to replace the background: 'color', 'image', or 'blur'. Default value: "color"

Possible enum values: color, image, blur

image_url string

Playground webcam/video source. Media is sent over WebRTC. Default value: ""

background_image_url string

Background image URL or data URI (used when background_type is 'image'). Default value: "null"

{
  "blur_strength": 50,
  "background_color": "Black",
  "background_type": "color"
}

Output#

{}

Other types#

IceServersOutput#

iceservers list<object>* required

type string* required

AnswerOutput#

sdp string* required

type string* required

IceCandidateOutput#

type string* required

candidate IceCandidate

ErrorOutput#

error string* required

type string* required

IceCandidate#

sdpMLineIndex integer

sdpMid string

Default value: "null"

candidate string* required

Related Models

Loading API documentation…

1. Calling the API

2. Authentication

API Key

4. Files

5. Schema

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"

Real-time via WebSockets#

This model has a real-time mode via WebSockets, supported by fal.realtime.connect.

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

const connection = fal.realtime.connect("bria/video/background-removal/realtime", {
  onResult: (result) => {
    console.log(result);
  },
  onError: (error) => {
    console.error(error);
  },
  // Fetch short-lived JWT token from your backend
  tokenProvider: async (app) => {
    const response = await fetch("/api/fal/realtime-token", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ app }),
    });
    return response.text();
  },
  tokenExpirationSeconds: 10,
});

connection.send({});

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

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#

blur_strength integer

Background blur strength, 0-100 (used when background_type is 'blur'). Default value: 50

background_color BackgroundColorEnum

Solid background colour (used when background_type is 'color'). Default value: "Black"

Possible enum values: Black, White, Gray, Red, Green, Blue, Yellow, Cyan, Magenta, Orange

background_type BackgroundTypeEnum

How to replace the background: 'color', 'image', or 'blur'. Default value: "color"

Possible enum values: color, image, blur

image_url string

Playground webcam/video source. Media is sent over WebRTC. Default value: ""

background_image_url string

Background image URL or data URI (used when background_type is 'image'). Default value: "null"

{
  "blur_strength": 50,
  "background_color": "Black",
  "background_type": "color"
}

Output#

{}

Other types#

IceServersOutput#

iceservers list<object>* required

type string* required

AnswerOutput#

sdp string* required

type string* required

IceCandidateOutput#

type string* required

candidate IceCandidate

ErrorOutput#

error string* required

type string* required

IceCandidate#

sdpMLineIndex integer

sdpMid string

Default value: "null"

candidate string* required

bria/video/background-removal/realtime

bria/video/background-removal/realtime

Table of contents

1. Calling the API

2. Authentication

4. Files

5. Schema

1. Calling the API#

Install the client#

Migrate to @fal-ai/client

Setup your API Key#

Real-time via WebSockets#

2. Authentication#

API Key#

Protect your API Key

4. Files#

Data URI (base64)#

Hosted files (URL)#

Uploading files#

Auto uploads

5. Schema#

Input#

Output#

Other types#

IceServersOutput#

AnswerOutput#

IceCandidateOutput#

ErrorOutput#

IceCandidate#

Related Models

Table of contents

1. Calling the API

2. Authentication

4. Files

5. Schema

1. Calling the API#

Install the client#

Migrate to @fal-ai/client

Setup your API Key#

Real-time via WebSockets#

2. Authentication#

API Key#

Protect your API Key

4. Files#

Data URI (base64)#

Hosted files (URL)#

Uploading files#

Auto uploads

5. Schema#

Input#

Output#

Other types#

IceServersOutput#

AnswerOutput#

IceCandidateOutput#

ErrorOutput#

IceCandidate#

Related Models