Luma's state of the art Ray2 model for text-to-video generation.
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/luma-dream-machine/ray-2-flash", {
input: {
prompt: "A herd of wild horses galloping across a dusty desert plain under a blazing midday sun, their manes flying in the wind; filmed in a wide tracking shot with dynamic motion, warm natural lighting, and an epic."
},
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/luma-dream-machine/ray-2-flash", {
input: {
prompt: "A herd of wild horses galloping across a dusty desert plain under a blazing midday sun, their manes flying in the wind; filmed in a wide tracking shot with dynamic motion, warm natural lighting, and an epic."
},
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/luma-dream-machine/ray-2-flash", {
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/luma-dream-machine/ray-2-flash", {
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.
prompt string* requiredaspect_ratio AspectRatioEnumThe aspect ratio of the generated video Default value: "16:9"
Possible enum values: 16:9, 9:16, 4:3, 3:4, 21:9, 9:21
loop booleanWhether the video should loop (end of video is blended with the beginning)
resolution ResolutionEnumThe resolution of the generated video (720p costs 2x more, 1080p costs 4x more) Default value: "540p"
Possible enum values: 540p, 720p, 1080p
duration DurationEnumThe duration of the generated video (9s costs 2x more) Default value: "5s"
Possible enum values: 5s, 9s
enable_safety_checker booleanAuthorized callers may set false to request relaxed screening. Default value: true
{
"prompt": "A herd of wild horses galloping across a dusty desert plain under a blazing midday sun, their manes flying in the wind; filmed in a wide tracking shot with dynamic motion, warm natural lighting, and an epic.",
"aspect_ratio": "16:9",
"resolution": "540p",
"duration": "5s",
"enable_safety_checker": true
}The generated video
{
"video": {
"url": "https://v3.fal.media/files/penguin/Om3xjcOwiSCJwrXs7DUi__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.