This model is no longer supported.
This model is no longer supported.
Generate a video from an audio file and an image.
The client provides a convenient way to interact with the model API.
npm install --save @fal-ai/clientThe @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.
Set FAL_KEY as an environment variable in your runtime.
export FAL_KEY="YOUR_API_KEY"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/stable-avatar", {
input: {
image_url: "https://storage.googleapis.com/falserverless/example_inputs/stable-avatar-input-image.png",
audio_url: "https://storage.googleapis.com/falserverless/example_inputs/stable-avatar-input-audio.mp3",
prompt: "A person is in a relaxed pose. As the video progresses, the character speaks while arm and body movements are minimal and consistent with a natural speaking posture. Hand movements remain minimal. Don't blink too often. Preserve background integrity matching the reference image's spatial configuration, lighting conditions, and color temperature."
},
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);The API uses an API Key for authentication. It is recommended you set the FAL_KEY environment variable in your runtime when possible.
import { fal } from "@fal-ai/client";
fal.config({
credentials: "YOUR_FAL_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.
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/stable-avatar", {
input: {
image_url: "https://storage.googleapis.com/falserverless/example_inputs/stable-avatar-input-image.png",
audio_url: "https://storage.googleapis.com/falserverless/example_inputs/stable-avatar-input-audio.mp3",
prompt: "A person is in a relaxed pose. As the video progresses, the character speaks while arm and body movements are minimal and consistent with a natural speaking posture. Hand movements remain minimal. Don't blink too often. Preserve background integrity matching the reference image's spatial configuration, lighting conditions, and color temperature."
},
webhookUrl: "https://optional.webhook.url/for/results",
});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/stable-avatar", {
requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b",
logs: true,
});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/stable-avatar", {
requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b"
});
console.log(result.data);
console.log(result.requestId);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.
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.
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.
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);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.
image_url string* requiredThe URL of the image to use as a reference for the video generation.
audio_url string* requiredThe URL of the audio to use as a reference for the video generation.
prompt string* requiredThe prompt to use for the video generation.
aspect_ratio AspectRatioEnumThe aspect ratio of the video to generate. If 'auto', the aspect ratio will be determined by the reference image. Default value: "auto"
Possible enum values: 16:9, 1:1, 9:16, auto
guidance_scale floatThe guidance scale to use for the video generation. Default value: 5
audio_guidance_scale floatThe audio guidance scale to use for the video generation. Default value: 4
num_inference_steps integerThe number of inference steps to use for the video generation. Default value: 50
seed integerThe seed to use for the video generation.
perturbation floatThe amount of perturbation to use for the video generation. 0.0 means no perturbation, 1.0 means full perturbation. Default value: 0.1
{
"image_url": "https://storage.googleapis.com/falserverless/example_inputs/stable-avatar-input-image.png",
"audio_url": "https://storage.googleapis.com/falserverless/example_inputs/stable-avatar-input-audio.mp3",
"prompt": "A person is in a relaxed pose. As the video progresses, the character speaks while arm and body movements are minimal and consistent with a natural speaking posture. Hand movements remain minimal. Don't blink too often. Preserve background integrity matching the reference image's spatial configuration, lighting conditions, and color temperature.",
"aspect_ratio": "auto",
"guidance_scale": 5,
"audio_guidance_scale": 4,
"num_inference_steps": 50,
"perturbation": 0.1
}The generated video file.
{
"video": "https://storage.googleapis.com/falserverless/example_outputs/stable-avatar-output.mp4"
}url string* requiredThe URL where the file can be downloaded from.
content_type stringThe mime type of the file.
file_name stringThe name of the file. It will be auto-generated if not provided.
file_size integerThe size of the file in bytes.