MAGI-1 | Video to Video

fal-ai/magi/extend-video

MAGI-1 extends videos with an exceptional understanding of physical interactions and prompts

Inference

Commercial use

Schema

Playground API

About

Generate a video extension.

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. 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/magi/extend-video", {
  input: {
    prompt: "",
    video_url: "https://v3.fal.media/files/zebra/w4T087gvzG5LMGipMpPCO_pour-2s.mp4"
  },
  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"
});

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#

Long-running requests

For long-running requests, such as training jobs or models with slower inference times, it is recommended to check the Queue status and rely on Webhooks instead of blocking while waiting for the result.

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/magi/extend-video", {
  input: {
    prompt: "",
    video_url: "https://v3.fal.media/files/zebra/w4T087gvzG5LMGipMpPCO_pour-2s.mp4"
  },
  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/magi/extend-video", {
  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/magi/extend-video", {
  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#

prompt string* required

The text prompt to guide video generation.

video_url string* required

URL of the input video to represent the beginning of the video. If the input video does not match the chosen aspect ratio, it is resized and center cropped.

num_frames integer

Number of frames to generate. Must be between 96 and 192 (inclusive). Each additional 24 frames beyond 96 incurs an additional billing unit. Default value: 96

start_frame integer

The frame to begin the generation from, with the remaining frames will be treated as the prefix video. The final video will contain the frames up until this number unchanged, followed by the generated frames. The default start frame is 32 frames before the end of the video, which gives optimal results.

seed integer

Random seed for reproducibility. If None, a random seed is chosen.

resolution ResolutionEnum

Resolution of the generated video (480p or 720p). 480p is 0.5 billing units, and 720p is 1 billing unit. Default value: "720p"

Possible enum values: 480p, 720p

num_inference_steps integer

Number of inference steps for sampling. Higher values give better quality but take longer. Default value: 16

enable_safety_checker boolean

If set to true, the safety checker will be enabled. Default value: true

aspect_ratio AspectRatioEnum

Aspect ratio of the generated video. If 'auto', the aspect ratio will be determined automatically based on the input image. Default value: "auto"

Possible enum values: auto, 16:9, 9:16, 1:1

{
  "prompt": "",
  "video_url": "https://v3.fal.media/files/zebra/w4T087gvzG5LMGipMpPCO_pour-2s.mp4",
  "num_frames": 96,
  "resolution": "720p",
  "num_inference_steps": 16,
  "enable_safety_checker": true,
  "aspect_ratio": "auto"
}

Output#

video File* required

The generated video file.

seed integer* required

The seed used for generation.

{
  "video": {
    "url": "https://v3.fal.media/files/zebra/yVrs367uHeCqrBGY-VICa_3b064421-fe96-4ccb-a3ea-4f37b54e682e.mp4"
  }
}

Other types#

MagiResponse#

video File* required

The generated video file.

seed integer* required

The seed used for generation.

MagiImageToVideoRequest#

prompt string* required

The text prompt to guide video generation.

image_url string* required

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

num_frames integer

Number of frames to generate. Must be between 96 and 192 (inclusive). Each additional 24 frames beyond 96 incurs an additional billing unit. Default value: 96

seed integer

Random seed for reproducibility. If None, a random seed is chosen.

resolution ResolutionEnum

Resolution of the generated video (480p or 720p). 480p is 0.5 billing units, and 720p is 1 billing unit. Default value: "720p"

Possible enum values: 480p, 720p

num_inference_steps integer

Number of inference steps for sampling. Higher values give better quality but take longer. Default value: 16

enable_safety_checker boolean

If set to true, the safety checker will be enabled. Default value: true

aspect_ratio AspectRatioEnum

Aspect ratio of the generated video. If 'auto', the aspect ratio will be determined automatically based on the input image. Default value: "auto"

Possible enum values: auto, 16:9, 9:16, 1:1

MagiTextToVideoRequest#

prompt string* required

The text prompt to guide video generation.

num_frames integer

Number of frames to generate. Must be between 96 and 192 (inclusive). Each additional 24 frames beyond 96 incurs an additional billing unit. Default value: 96

seed integer

Random seed for reproducibility. If None, a random seed is chosen.

resolution ResolutionEnum

Resolution of the generated video (480p or 720p). 480p is 0.5 billing units, and 720p is 1 billing unit. Default value: "720p"

Possible enum values: 480p, 720p

num_inference_steps integer

Number of inference steps for sampling. Higher values give better quality but take longer. Default value: 16

enable_safety_checker boolean

If set to true, the safety checker will be enabled. Default value: true

aspect_ratio AspectRatioEnum

Aspect ratio of the generated video. If 'auto', the aspect ratio will be determined automatically based on the input image. Default value: "auto"

Possible enum values: auto, 16:9, 9:16, 1:1

MagiImageToVideoResponse#

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.

file_data string

File data

Table of contents

1. Calling the API

2. Authentication

3. Queue

4. Files

5. Schema

About

1. Calling the API#

Install the client#

Migrate to @fal-ai/client

Setup your API Key#

Submit a request#

2. Authentication#

API Key#

Protect your API Key

3. Queue#

Long-running requests

Submit a request#

Fetch request status#

Get the result#

4. Files#

Data URI (base64)#

Hosted files (URL)#

Uploading files#

Auto uploads

5. Schema#

Input#

Output#

Other types#

MagiResponse#

MagiImageToVideoRequest#

MagiTextToVideoRequest#

MagiImageToVideoResponse#

File#

Related Models

MAGI-1 Video to Video

Table of contents

1. Calling the API

2. Authentication

3. Queue

4. Files

5. Schema

About

1. Calling the API#

Install the client#

Migrate to @fal-ai/client

Setup your API Key#

Submit a request#

2. Authentication#

API Key#

Protect your API Key

3. Queue#

Long-running requests

Submit a request#

Fetch request status#

Get the result#

4. Files#

Data URI (base64)#

Hosted files (URL)#

Uploading files#

Auto uploads

5. Schema#

Input#

Output#

Other types#

MagiResponse#

MagiImageToVideoRequest#

MagiTextToVideoRequest#

MagiImageToVideoResponse#

File#

Related Models