fal-ai/lyra-2/zoom
About
Zoom
1. Calling the API#
Install the client#
The client provides a convenient way to interact with the model API.
npm install --save @fal-ai/clientMigrate to @fal-ai/client
The @fal-ai/serverless-client package has been deprecated in favor of @fal-ai/client. Please check the migration guide for more information.
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/lyra-2/zoom", {
input: {
image_url: "https://v3b.fal.media/files/b/0a972579/6NsCexuhSlD8gcFYlpr1K_00.png",
prompt: "A slow, steady horizontal orbit of the camera around the scene, focusing on the two massive galleons. The scene is a frozen tableau: the turquoise water is glass-like and motionless, the canvas sails are rigid, and the distant clouds are fixed in the golden sky. Every element, from the foreground wooden barrels and coiled ropes to the intricate coastal architecture, remains perfectly still. The warm, late-afternoon sunlight and soft shadows are permanent. As the camera advances, more of the harbor's stone buildings and the ships' wooden hulls are revealed, maintaining identical textures and colors. The entire world is locked in a silent, breathless moment with zero object or environmental movement."
},
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#
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#
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/lyra-2/zoom", {
input: {
image_url: "https://v3b.fal.media/files/b/0a972579/6NsCexuhSlD8gcFYlpr1K_00.png",
prompt: "A slow, steady horizontal orbit of the camera around the scene, focusing on the two massive galleons. The scene is a frozen tableau: the turquoise water is glass-like and motionless, the canvas sails are rigid, and the distant clouds are fixed in the golden sky. Every element, from the foreground wooden barrels and coiled ropes to the intricate coastal architecture, remains perfectly still. The warm, late-afternoon sunlight and soft shadows are permanent. As the camera advances, more of the harbor's stone buildings and the ships' wooden hulls are revealed, maintaining identical textures and colors. The entire world is locked in a silent, breathless moment with zero object or environmental movement."
},
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/lyra-2/zoom", {
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/lyra-2/zoom", {
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#
image_url string* requiredURL of the input image. Lyra-2 hallucinates a video that starts from this image and moves the camera along the requested trajectory.
prompt string* requiredText prompt describing the scene. Best results come from prompts
zoom_direction ZoomDirectionEnumWhether to generate a zoom-in video (camera moves toward the subject), a zoom-out video (camera retreats), or a combined out-then-in video. Default value: "in"
Possible enum values: in, out, both
num_frames NumFramesEnumNumber of frames per direction. Each AR chunk produces 80 frames, and the loop emits an extra anchor frame at the start, so valid values are 81, 161, 241, 321, 401, 481. Default value: "81"
Possible enum values: 81, 161, 241, 321, 401, 481
zoom_in_trajectory ZoomInTrajectoryEnumCamera-trajectory preset for the zoom-in direction. horizontal_zoom is a straight translation along the z-axis; horizontal_zoom_bend adds a slight arc; spiral produces a spiraling approach. Default value: "orbit_horizontal"
Possible enum values: horizontal_zoom, horizontal_zoom_bend, spiral, dolly_zoom, orbit_horizontal, back
zoom_in_strength floatDisplacement scale for the zoom-in trajectory (relative to subject depth). Default value: 0.5
zoom_out_trajectory ZoomOutTrajectoryEnumCamera-trajectory preset for the zoom-out direction. Default value: "horizontal_zoom"
Possible enum values: horizontal_zoom, horizontal_zoom_bend, spiral, dolly_zoom, orbit_horizontal, back
zoom_out_strength floatDisplacement scale for the zoom-out trajectory. Default value: 1.5
resolution ResolutionEnumOutput resolution. 480p = 480x832, 720p = 720x1280. Higher resolutions take substantially longer to generate. Default value: "480p"
Possible enum values: 480p, 720p
use_dmd booleanEnable the upstream DMD distillation LoRA and 4-step scheduler for much faster generation. Disable for the higher-quality default Lyra-2 sampling path. Default value: true
guidance_scale floatClassifier-free guidance scale. Default value: 5
num_inference_steps integerNumber of denoising steps per frame chunk. Ignored when use_dmd is enabled because the DMD scheduler uses a fixed 4-step schedule. Default value: 28
frames_per_second integerFrame rate of the output video. Default value: 16
seed integerRandom seed for reproducibility. If not provided, a random seed is chosen.
{
"image_url": "https://v3b.fal.media/files/b/0a972579/6NsCexuhSlD8gcFYlpr1K_00.png",
"prompt": "A slow, steady horizontal orbit of the camera around the scene, focusing on the two massive galleons. The scene is a frozen tableau: the turquoise water is glass-like and motionless, the canvas sails are rigid, and the distant clouds are fixed in the golden sky. Every element, from the foreground wooden barrels and coiled ropes to the intricate coastal architecture, remains perfectly still. The warm, late-afternoon sunlight and soft shadows are permanent. As the camera advances, more of the harbor's stone buildings and the ships' wooden hulls are revealed, maintaining identical textures and colors. The entire world is locked in a silent, breathless moment with zero object or environmental movement.",
"zoom_direction": "in",
"num_frames": 81,
"zoom_in_trajectory": "orbit_horizontal",
"zoom_in_strength": 0.5,
"zoom_out_trajectory": "horizontal_zoom",
"zoom_out_strength": 1.5,
"resolution": "480p",
"use_dmd": true,
"guidance_scale": 5,
"num_inference_steps": 28,
"frames_per_second": 16
}Output#
The generated MP4 video.
seed integer* requiredThe seed used for generation.
Per-stage timing breakdown (seconds).
{
"video": {
"content_type": "video/mp4",
"url": "https://v3b.fal.media/files/b/0a972e2c/6ACGX02AxQXhC1t9BED4b_tmpoufr9iug.mp4"
},
"seed": 478163327,
"timings": {
"encode_s": 1.475144863128662,
"zoom_in_s": 51.5847270488739
}
}Other types#
VideoFile#
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.
width integerThe width of the video
height integerThe height of the video
fps floatThe FPS of the video
duration floatThe duration of the video
num_frames integerThe number of frames in the video