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Wan Vision Enhancer Video to Video

fal-ai/wan-vision-enhancer
Wan Vision Enhancer for magnify/enhance video with high fidelity and creativity.
Inference
Commercial use
Schema
LLMs
PlaygroundAPI

About

Enhance Video

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/wan-vision-enhancer", {
  input: {
    video_url: "https://v3b.fal.media/files/b/0a85cc7d/zBFvZyJ7iX-7AZoQ1NaMN_wan_animate_output.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"
});

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/wan-vision-enhancer", {
  input: {
    video_url: "https://v3b.fal.media/files/b/0a85cc7d/zBFvZyJ7iX-7AZoQ1NaMN_wan_animate_output.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/wan-vision-enhancer", {
  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/wan-vision-enhancer", {
  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#

video_url string* required

The URL of the video to enhance with Wan Video. Maximum 200MB file size. Videos longer than 500 frames will have only the first 500 frames processed (~8-21 seconds depending on fps).

target_resolution OutputResolutionEnum

Target output resolution for the enhanced video. 720p (native, fast) or 1080p (upscaled, slower). Processing is always done at 720p, then upscaled if 1080p selected. Default value: "720p"

Possible enum values: 720p, 1080p

creativity integer

Controls how much the model enhances/changes the video. 0 = Minimal change (preserves original), 1 = Subtle enhancement (default), 2 = Medium enhancement, 3 = Strong enhancement, 4 = Maximum enhancement. Default value: 1

prompt string

Optional prompt to prepend to the VLM-generated description. Leave empty to use only the auto-generated description from the video.

negative_prompt string

Negative prompt to avoid unwanted features. Default value: "oversaturated, overexposed, static, blurry details, subtitles, stylized, artwork, painting, still frame, overall gray, worst quality, low quality, JPEG artifacts, ugly, mutated, extra fingers, poorly drawn hands, poorly drawn face, deformed, disfigured, malformed limbs, fused fingers, static motion, cluttered background, three legs, crowded background, walking backwards"

seed integer

Random seed for reproducibility. If not provided, a random seed will be used.

{
  "video_url": "https://v3b.fal.media/files/b/0a85cc7d/zBFvZyJ7iX-7AZoQ1NaMN_wan_animate_output.mp4",
  "target_resolution": "720p",
  "creativity": 1,
  "negative_prompt": "oversaturated, overexposed, static, blurry details, subtitles, stylized, artwork, painting, still frame, overall gray, worst quality, low quality, JPEG artifacts, ugly, mutated, extra fingers, poorly drawn hands, poorly drawn face, deformed, disfigured, malformed limbs, fused fingers, static motion, cluttered background, three legs, crowded background, walking backwards"
}

Output#

video File* required

The enhanced video file.

seed integer* required

The seed used for generation.

timings Timings* required

The timings of the different steps in the workflow.

{
  "video": {
    "url": "https://v3b.fal.media/files/b/0a85cc9a/TBr1WXFaFb2zJ2htEWDdm_combined_2baa6f34a84a4d0caf23896580810ee1.mp4"
  },
  "seed": 42,
  "timings": {
    "video_processing": 15.2,
    "inference": 125.4
  }
}

Other types#

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.