Recraft V4.1 Utility Text to Image API Docs | fal

Recraft V4.1 Utility Pro pairs the high-resolution output of V4.1 Pro with a faster, cost-efficient runtime. Designed for studios shipping large-format work at scale, it makes premium-quality raster generation viable across full creative pipelines.

fal-ai/recraft/v4.1/utility/pro/text-to-image

Inference

Commercial use

Partner

Schema

LLMs

Playground API Examples

1. Calling the API

2. Authentication

API Key

3. Queue

4. Files

5. Schema

About

Recraft V4 1 Utility Pro

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. Install the new package and update your imports — see client setup.

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/recraft/v4.1/utility/pro/text-to-image", {
  input: {
    prompt: "Crash zoom frozen at the moment of impact as a kingfisher breaks the surface of a pond, water crown splash forming a perfect circle, the bird's beak piercing the mirror-like surface, fish visible just below, frozen at 1/8000s, 400mm super telephoto with 2x extender, ring flash fill, pre-dawn blue light with single shaft of gold, BBC Frozen Planet production quality"
  },
  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 an environment where you cannot set environment variables, you can configure the API key manually on the client.

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/recraft/v4.1/utility/pro/text-to-image", {
  input: {
    prompt: "Crash zoom frozen at the moment of impact as a kingfisher breaks the surface of a pond, water crown splash forming a perfect circle, the bird's beak piercing the mirror-like surface, fish visible just below, frozen at 1/8000s, 400mm super telephoto with 2x extender, ring flash fill, pre-dawn blue light with single shaft of gold, BBC Frozen Planet production quality"
  },
  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/recraft/v4.1/utility/pro/text-to-image", {
  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/recraft/v4.1/utility/pro/text-to-image", {
  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

image_size ImageSize | Enum

Default value: square_hd

Possible enum values: square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9

Note: For custom image sizes, you can pass the width and height as an object:

"image_size": {
  "width": 1280,
  "height": 720
}

colors list<RGBColor>

An array of preferable colors

background_color RGBColor

The preferable background color of the generated images.

enable_safety_checker boolean

If set to true, the safety checker will be enabled. Disabling it requires account authorization; unauthorized requests are always checked. Default value: true

{
  "prompt": "Crash zoom frozen at the moment of impact as a kingfisher breaks the surface of a pond, water crown splash forming a perfect circle, the bird's beak piercing the mirror-like surface, fish visible just below, frozen at 1/8000s, 400mm super telephoto with 2x extender, ring flash fill, pre-dawn blue light with single shaft of gold, BBC Frozen Planet production quality",
  "image_size": "landscape_16_9",
  "colors": [],
  "enable_safety_checker": true
}

Output#

images list<File>* required

{
  "images": [
    {
      "file_name": "image.webp",
      "url": "https://storage.googleapis.com/falserverless/example_outputs/recraft-v4/pro-output.webp",
      "file_size": 1949504,
      "content_type": "image/webp"
    }
  ]
}

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.

RGBColor#

r integer

Red color value

g integer

Green color value

b integer

Blue color value

ImageSize#

width integer

The width of the generated image. Default value: 512

height integer

The height of the generated image. Default value: 512

Related Models

1. Calling the API

2. Authentication

API Key

3. Queue

4. Files

5. Schema

About

Recraft V4 1 Utility Pro

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. Install the new package and update your imports — see client setup.

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/recraft/v4.1/utility/pro/text-to-image", {
  input: {
    prompt: "Crash zoom frozen at the moment of impact as a kingfisher breaks the surface of a pond, water crown splash forming a perfect circle, the bird's beak piercing the mirror-like surface, fish visible just below, frozen at 1/8000s, 400mm super telephoto with 2x extender, ring flash fill, pre-dawn blue light with single shaft of gold, BBC Frozen Planet production quality"
  },
  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 an environment where you cannot set environment variables, you can configure the API key manually on the client.

import { fal } from "@fal-ai/client";

fal.config({
  credentials: "YOUR_FAL_KEY"
});

Protect your API Key

3. Queue#

Long-running requests

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/recraft/v4.1/utility/pro/text-to-image", {
  input: {
    prompt: "Crash zoom frozen at the moment of impact as a kingfisher breaks the surface of a pond, water crown splash forming a perfect circle, the bird's beak piercing the mirror-like surface, fish visible just below, frozen at 1/8000s, 400mm super telephoto with 2x extender, ring flash fill, pre-dawn blue light with single shaft of gold, BBC Frozen Planet production quality"
  },
  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/recraft/v4.1/utility/pro/text-to-image", {
  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/recraft/v4.1/utility/pro/text-to-image", {
  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)#

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

image_size ImageSize | Enum

Default value: square_hd

Possible enum values: square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9

Note: For custom image sizes, you can pass the width and height as an object:

"image_size": {
  "width": 1280,
  "height": 720
}

colors list<RGBColor>

An array of preferable colors

background_color RGBColor

The preferable background color of the generated images.

enable_safety_checker boolean

If set to true, the safety checker will be enabled. Disabling it requires account authorization; unauthorized requests are always checked. Default value: true

{
  "prompt": "Crash zoom frozen at the moment of impact as a kingfisher breaks the surface of a pond, water crown splash forming a perfect circle, the bird's beak piercing the mirror-like surface, fish visible just below, frozen at 1/8000s, 400mm super telephoto with 2x extender, ring flash fill, pre-dawn blue light with single shaft of gold, BBC Frozen Planet production quality",
  "image_size": "landscape_16_9",
  "colors": [],
  "enable_safety_checker": true
}

Output#

images list<File>* required

{
  "images": [
    {
      "file_name": "image.webp",
      "url": "https://storage.googleapis.com/falserverless/example_outputs/recraft-v4/pro-output.webp",
      "file_size": 1949504,
      "content_type": "image/webp"
    }
  ]
}

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.

RGBColor#

r integer

Red color value

g integer

Green color value

b integer

Blue color value

ImageSize#

width integer

The width of the generated image. Default value: 512

height integer

The height of the generated image. Default value: 512

fal-ai/recraft/v4.1/utility/pro/text-to-image

Table of contents

Table of contents

fal-ai/recraft/v4.1/utility/pro/text-to-image

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#

File#

RGBColor#

ImageSize#

Related Models

Table of contents

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#

File#

RGBColor#

ImageSize#

Related Models