Ai Avatar Image to Video

fal-ai/ai-avatar/multi-text
MultiTalk model generates a multi-person conversation video from an image and text inputs. Converts text to speech for each person, generating a realistic conversation scene.
Inference
Commercial use

About

MultiTalk model generates a multi-person conversation video from an image and text inputs. Converts text to speech for each person, generating a realistic conversation scene.

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

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/ai-avatar/multi-text", {
  input: {
    image_url: "https://v3.fal.media/files/koala/vhkIF86hmgNTBll_lF1xI_3c7476642b19435aa763fe3b49cf99c7.png",
    first_text_input: "Do you know what are we eating?",
    second_text_input: "I dont know I am eating this because our mother gave it to us. I think it is something called milky pie.",
    prompt: "Two kids talking on a lunch."
  },
  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 case your app is running in an environment where you cannot set environment variables, you can set the API Key manually as a client configuration.
import { fal } from "@fal-ai/client";

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

3. Queue#

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/ai-avatar/multi-text", {
  input: {
    image_url: "https://v3.fal.media/files/koala/vhkIF86hmgNTBll_lF1xI_3c7476642b19435aa763fe3b49cf99c7.png",
    first_text_input: "Do you know what are we eating?",
    second_text_input: "I dont know I am eating this because our mother gave it to us. I think it is something called milky pie.",
    prompt: "Two kids talking on a lunch."
  },
  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/ai-avatar/multi-text", {
  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/ai-avatar/multi-text", {
  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);

Read more about file handling in our file upload guide.

5. Schema#

Input#

image_url string* required

URL of the input image. If the input image does not match the chosen aspect ratio, it is resized and center cropped.

first_text_input string* required

The text input to guide video generation.

second_text_input string* required

The text input to guide video generation.

voice1 Voice1Enum

The first person's voice to use for speech generation Default value: "Sarah"

Possible enum values: Aria, Roger, Sarah, Laura, Charlie, George, Callum, River, Liam, Charlotte, Alice, Matilda, Will, Jessica, Eric, Chris, Brian, Daniel, Lily, Bill

voice2 Voice2Enum

The second person's voice to use for speech generation Default value: "Roger"

Possible enum values: Aria, Roger, Sarah, Laura, Charlie, George, Callum, River, Liam, Charlotte, Alice, Matilda, Will, Jessica, Eric, Chris, Brian, Daniel, Lily, Bill

prompt string* required

The text prompt to guide video generation.

num_frames integer

Number of frames to generate. Must be between 81 to 129 (inclusive). If the number of frames is greater than 81, the video will be generated with 1.25x more billing units. Default value: 191

resolution ResolutionEnum

Resolution of the video to generate. Must be either 480p or 720p. Default value: "480p"

Possible enum values: 480p, 720p

seed integer

Random seed for reproducibility. If None, a random seed is chosen. Default value: 81

acceleration AccelerationEnum

The acceleration level to use for generation. Default value: "regular"

Possible enum values: none, regular, high

{
  "image_url": "https://v3.fal.media/files/koala/vhkIF86hmgNTBll_lF1xI_3c7476642b19435aa763fe3b49cf99c7.png",
  "first_text_input": "Do you know what are we eating?",
  "second_text_input": "I dont know I am eating this because our mother gave it to us. I think it is something called milky pie.",
  "voice1": "Sarah",
  "voice2": "Roger",
  "prompt": "Two kids talking on a lunch.",
  "num_frames": 191,
  "resolution": "480p",
  "seed": 81,
  "acceleration": "regular"
}

Output#

video File* required

The generated video file.

seed integer* required

The seed used for generation.

{
  "video": {
    "file_size": 352679,
    "file_name": "30b76b90c2164f9a926527497c20832b.mp4",
    "content_type": "application/octet-stream",
    "url": "https://v3.fal.media/files/zebra/lKMkUvzCqKn-gHC0vyUPP_30b76b90c2164f9a926527497c20832b.mp4"
  }
}

Other types#

AvatarSingleAudioResponse#

video File* required

The generated video file.

seed integer* required

The seed used for generation.

AvatarSingleAudioRequest#

image_url string* required

URL of the input image. If the input image does not match the chosen aspect ratio, it is resized and center cropped.

audio_url string* required

The URL of the audio file.

prompt string* required

The text prompt to guide video generation.

num_frames integer

Number of frames to generate. Must be between 81 to 129 (inclusive). If the number of frames is greater than 81, the video will be generated with 1.25x more billing units. Default value: 145

resolution ResolutionEnum

Resolution of the video to generate. Must be either 480p or 720p. Default value: "480p"

Possible enum values: 480p, 720p

seed integer

Random seed for reproducibility. If None, a random seed is chosen. Default value: 42

acceleration AccelerationEnum

The acceleration level to use for generation. Default value: "regular"

Possible enum values: none, regular, high

AvatarMultiAudioResponse#

video File* required

The generated video file.

seed integer* required

The seed used for generation.

AvatarSingleTextRequest#

image_url string* required

URL of the input image. If the input image does not match the chosen aspect ratio, it is resized and center cropped.

text_input string* required

The text input to guide video generation.

voice VoiceEnum* required

The voice to use for speech generation

Possible enum values: Aria, Roger, Sarah, Laura, Charlie, George, Callum, River, Liam, Charlotte, Alice, Matilda, Will, Jessica, Eric, Chris, Brian, Daniel, Lily, Bill

prompt string* required

The text prompt to guide video generation.

num_frames integer

Number of frames to generate. Must be between 81 to 129 (inclusive). If the number of frames is greater than 81, the video will be generated with 1.25x more billing units. Default value: 136

resolution ResolutionEnum

Resolution of the video to generate. Must be either 480p or 720p. Default value: "480p"

Possible enum values: 480p, 720p

seed integer

Random seed for reproducibility. If None, a random seed is chosen. Default value: 42

acceleration AccelerationEnum

The acceleration level to use for generation. Default value: "regular"

Possible enum values: none, regular, high

AvatarSingleTextResponse#

video File* required

The generated video file.

seed integer* required

The seed used for generation.

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.

AvatarMultiAudioPersonRequest#

image_url string* required

URL of the input image. If the input image does not match the chosen aspect ratio, it is resized and center cropped.

first_audio_url string* required

The URL of the Person 1 audio file.

second_audio_url string* required

The URL of the Person 2 audio file.

prompt string* required

The text prompt to guide video generation.

num_frames integer

Number of frames to generate. Must be between 81 to 129 (inclusive). If the number of frames is greater than 81, the video will be generated with 1.25x more billing units. Default value: 181

resolution ResolutionEnum

Resolution of the video to generate. Must be either 480p or 720p. Default value: "480p"

Possible enum values: 480p, 720p

seed integer

Random seed for reproducibility. If None, a random seed is chosen. Default value: 81

use_only_first_audio boolean

Whether to use only the first audio file.

acceleration AccelerationEnum

The acceleration level to use for generation. Default value: "regular"

Possible enum values: none, regular, high

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