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GPT Image 1 Mini Text to Image

fal-ai/gpt-image-1-mini
GPT Image 1 mini combines OpenAI's advanced language capabilities, powered by GPT-5, with GPT Image 1 Mini for efficient image generation.
Inference
Commercial use
Schema
LLMs
PlaygroundAPI

About

GPT Image 1 Mini is OpenAI's new state-of-the-art image generation model. It is a natively multimodal language model that accepts both text and image inputs, and produces image outputs. It is the successor to DALL-E 2 and DALL-E 3.

Use it as a text-to-image API through fal!

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/gpt-image-1-mini", {
  input: {
    prompt: "A serene landscape with mountains reflecting in a crystal-clear lake at sunset, photorealistic style"
  },
  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/gpt-image-1-mini", {
  input: {
    prompt: "A serene landscape with mountains reflecting in a crystal-clear lake at sunset, photorealistic style"
  },
  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/gpt-image-1-mini", {
  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/gpt-image-1-mini", {
  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#

prompt string* required

The prompt for image generation

image_size ImageSizeEnum

Aspect ratio for the generated image Default value: "auto"

Possible enum values: auto, 1024x1024, 1536x1024, 1024x1536

background BackgroundEnum

Background for the generated image Default value: "auto"

Possible enum values: auto, transparent, opaque

quality QualityEnum

Quality for the generated image Default value: "auto"

Possible enum values: auto, low, medium, high

num_images integer

Number of images to generate Default value: 1

output_format OutputFormatEnum

Output format for the images Default value: "png"

Possible enum values: jpeg, png, webp

sync_mode boolean

If True, the media will be returned as a data URI and the output data won't be available in the request history.

{
  "prompt": "A serene landscape with mountains reflecting in a crystal-clear lake at sunset, photorealistic style",
  "image_size": "auto",
  "background": "auto",
  "quality": "auto",
  "num_images": 1,
  "output_format": "png"
}

Output#

images list<ImageFile>* required

The generated images.

{
  "images": [
    {
      "height": 1024,
      "file_name": "1EXVSVlSs4Yz5hKplrzTv_2595c4e8720f4c19bcbc3dd373b18065.jpg",
      "content_type": "image/jpeg",
      "url": "https://v3b.fal.media/files/b/elephant/1EXVSVlSs4Yz5hKplrzTv_2595c4e8720f4c19bcbc3dd373b18065.jpg",
      "width": 1024
    }
  ]
}

Other types#

ImageFile#

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

width integer

The width of the image

height integer

The height of the image

EditImageResponseMini#

images list<ImageFile>* required

The generated images.

EditImageRequestMini#

prompt string* required

The prompt for image generation

image_urls list<string>* required

The URLs of the images to use as a reference for the generation.

image_size ImageSizeEnum

Aspect ratio for the generated image Default value: "auto"

Possible enum values: auto, 1024x1024, 1536x1024, 1024x1536

background BackgroundEnum

Background for the generated image Default value: "auto"

Possible enum values: auto, transparent, opaque

quality QualityEnum

Quality for the generated image Default value: "auto"

Possible enum values: auto, low, medium, high

num_images integer

Number of images to generate Default value: 1

output_format OutputFormatEnum

Output format for the images Default value: "png"

Possible enum values: jpeg, png, webp

sync_mode boolean

If True, the media will be returned as a data URI and the output data won't be available in the request history.

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