---
title: GPT Image 1 Mini | Runware Docs
url: https://runware.ai/docs/models/openai-gpt-image-1-mini
description: Cost-effective GPT Image 1 variant optimized for speed and efficiency
---
# GPT Image 1 Mini

GPT Image 1 Mini is a lighter variant of OpenAI's GPT Image 1 model. It offers faster generation at a lower cost while retaining core capabilities including text-to-image generation, image editing, and text rendering. It is suited for high-volume workflows, rapid prototyping, and cost-sensitive applications where the full GPT Image 1 model may be excessive.

- **ID**: `openai:1@2`
- **Status**: live
- **Creator**: OpenAI
- **Release Date**: April 23, 2025
- **Capabilities**: Text to Image, Image to Image, Image Editing

## Compatibility & Validation

`width` and `height` must be used together.

---

The following dimension combinations are supported:

| Configuration | Dimensions |
| --- | --- |
| `1K (1:1)` | `1024x1024` |
| `1K (3:2)` | `1536x1024` |
| `1K (2:3)` | `1024x1536` |

## Request Parameters

**API Options**

Platform-level options for task execution and delivery.

### [taskType](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `imageInference`

Identifier for the type of task being performed

### [taskUUID](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

### [outputType](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-outputtype)

- **Type**: `string`
- **Default**: `URL`

Image output type.

**Allowed values**: `URL` `base64Data` `dataURI`

### [outputFormat](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-outputformat)

- **Type**: `string`
- **Default**: `JPG`

Specifies the file format of the generated output. The available values depend on the task type and the specific model's capabilities.

- \`JPG\`: Best for photorealistic images with smaller file sizes (no transparency).
- \`PNG\`: Lossless compression, supports high quality and transparency (alpha channel).
- \`WEBP\`: Modern format providing superior compression and transparency support.

> [!NOTE]
> \*\*Transparency\*\*: If you are using features like background removal or LayerDiffuse that require transparency, you must select a format that supports an alpha channel (e.g., \`PNG\`, \`WEBP\`, \`TIFF\`). \`JPG\` does not support transparency.

**Allowed values**: `JPG` `PNG` `WEBP`

### [outputQuality](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-outputquality)

- **Type**: `integer`
- **Min**: `20`
- **Max**: `99`
- **Default**: `95`

Compression quality of the output. Higher values preserve quality but increase file size.

### [webhookURL](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-webhookurl)

- **Type**: `string`
- **Format**: `URI`

Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

**Learn more** (1 resource):

- [Webhooks](https://runware.ai/docs/platform/webhooks) (platform)

### [deliveryMethod](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-deliverymethod)

- **Type**: `string`
- **Default**: `sync`

Determines how the API delivers task results.

**Allowed values**:

- `sync` Returns complete results directly in the API response.
- `async` Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse.

**Learn more** (1 resource):

- [Task Polling](https://runware.ai/docs/platform/task-polling) (platform)

### [uploadEndpoint](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-uploadendpoint)

- **Type**: `string`
- **Format**: `URI`

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

**Common use cases:**

- **Cloud storage**: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
- **CDN integration**: Upload to content delivery networks for immediate distribution.

```text
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg
```

The content data will be sent as the request body to the specified URL when generation is complete.

### [safety](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-safety)

- **Path**: `safety.checkContent`
- **Type**: `object (2 properties)`

Content safety checking configuration for image generation.

#### [checkContent](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-safety-checkcontent)

- **Path**: `safety.checkContent`
- **Type**: `boolean`
- **Default**: `false`

Enable or disable content safety checking. When enabled, defaults to `fast` mode.

#### [mode](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-safety-mode)

- **Path**: `safety.mode`
- **Type**: `string`
- **Default**: `none`

Safety checking mode for image generation.

**Allowed values**:

- `none` Disables checking.
- `fast` Performs a single check.

### [ttl](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-ttl)

- **Type**: `integer`
- **Min**: `60`

Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`.

### [includeCost](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-includecost)

- **Type**: `boolean`
- **Default**: `false`

Include task cost in the response.

### [numberResults](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-numberresults)

- **Type**: `integer`
- **Min**: `1`
- **Max**: `20`
- **Default**: `1`

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

**Inputs**

Input resources for the task (images, audio, etc). These must be nested inside the \`inputs\` object.

### [referenceImages](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-inputs-referenceimages)

- **Path**: `inputs.referenceImages`
- **Type**: `array of strings`

List of reference images (UUID, URL, Data URI, or Base64).

**Generation Parameters**

Core parameters for controlling the generated content.

### [model](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-model)

- **Type**: `string`
- **Required**: true
- **Value**: `openai:1@2`

Identifier of the model to use for generation.

**Learn more** (3 resources):

- [Text To Image: Model Selection The Foundation Of Generation](https://runware.ai/docs/guides/text-to-image#model-selection-the-foundation-of-generation) (guide)
- [Image Inpainting: Model Specialized Inpainting Models](https://runware.ai/docs/guides/image-inpainting#model-specialized-inpainting-models) (guide)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide)

### [positivePrompt](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-positiveprompt)

- **Type**: `string`
- **Required**: true
- **Min**: `1`
- **Max**: `32000`

Text prompt describing elements to include in the generated output.

**Learn more** (2 resources):

- [Text To Image: Prompts Guiding The Generation](https://runware.ai/docs/guides/text-to-image#prompts-guiding-the-generation) (guide)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide)

### [width](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-width)

- **Type**: `integer`
- **Required**: true
- **Paired with**: height

Width of the generated media in pixels.

**Learn more** (2 resources):

- [Image To Image: Dimensions Changing Aspect Ratio](https://runware.ai/docs/guides/image-to-image#dimensions-changing-aspect-ratio) (guide)
- [Image Outpainting: Dimensions Critical For Outpainting](https://runware.ai/docs/guides/image-outpainting#dimensions-critical-for-outpainting) (guide)

### [height](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-height)

- **Type**: `integer`
- **Required**: true
- **Paired with**: width

Height of the generated media in pixels.

**Learn more** (2 resources):

- [Image To Image: Dimensions Changing Aspect Ratio](https://runware.ai/docs/guides/image-to-image#dimensions-changing-aspect-ratio) (guide)
- [Image Outpainting: Dimensions Critical For Outpainting](https://runware.ai/docs/guides/image-outpainting#dimensions-critical-for-outpainting) (guide)

**Provider Settings**

Parameters specific to this model provider. These must be nested inside the \`providerSettings.openai\` object.

### [background](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-providersettings-openai-background)

- **Path**: `providerSettings.openai.background`
- **Type**: `string`
- **Default**: `auto`

Background handling in generated images.

**Allowed values**:

- `auto` Automatically determines the most appropriate background based on content.
- `opaque` Solid background, no transparency.
- `transparent` Transparent background areas where applicable.

### [quality](https://runware.ai/docs/models/openai-gpt-image-1-mini#request-providersettings-openai-quality)

- **Path**: `providerSettings.openai.quality`
- **Type**: `string`
- **Default**: `auto`

Image quality level.

**Allowed values**:

- `auto` Automatically selects optimal quality based on context.
- `high` Maximum quality with enhanced detail and refinement.
- `medium` Balanced quality suitable for most use cases.
- `low` Faster generation with acceptable quality for rapid iteration.

## Response Parameters

### [taskType](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `imageInference`

Type of the task.

### [taskUUID](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the task.

### [imageUUID](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-imageuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the output image.

### [imageURL](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-imageurl)

- **Type**: `string`
- **Format**: `URI`

URL of the output image.

### [imageBase64Data](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-imagebase64data)

- **Type**: `string`

Base64-encoded image data.

### [imageDataURI](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-imagedatauri)

- **Type**: `string`
- **Format**: `URI`

Data URI of the output image.

### [seed](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-seed)

- **Type**: `integer`

The seed used for generation. If none was provided, shows the randomly generated seed.

### [NSFWContent](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-nsfwcontent)

- **Type**: `boolean`

Flag indicating if NSFW content was detected.

### [cost](https://runware.ai/docs/models/openai-gpt-image-1-mini#response-cost)

- **Type**: `float`

Task cost in USD. Present when `includeCost` is set to `true` in the request.

## Examples

### Artisan Matchbox Label Illustration (Image to Image)

![Artisan Matchbox Label Illustration](https://assets.runware.ai/examples/openai-gpt-image-1-mini/f7f698d4-fb2c-4b6d-a848-23513ebd3e6c.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "cf66f2c0-1dab-4ce8-b24b-a679588236e0",
  "model": "openai:1@2",
  "positivePrompt": "Using the reference image as the package layout guide, create an ornate vintage matchbox label for a fictional brand called 'Golden Mantis'. Front-facing box design with intricate filigree borders, a dramatic illustrated praying mantis in emerald and amber, tiny sparks and curling smoke motifs, antique printmaking texture, aged ink, rich cream, forest green, burnt orange, and muted gold palette. Include elegant readable display text: 'GOLDEN MANTIS' large at top, 'SAFETY MATCHES' beneath it, and small text at bottom: '75 STICKS'. Highly detailed packaging artwork, authentic letterpress feel, symmetrical composition, decorative corner emblems, premium collectible ephemera aesthetic, opaque background.",
  "width": 1024,
  "height": 1536,
  "providerSettings": {
    "openai": {
      "quality": "medium",
      "background": "opaque"
    }
  },
  "inputs": {
    "referenceImages": [
      "https://assets.runware.ai/assets/inputs/8c830f17-de66-4dc8-be64-711e2665612e.jpg"
    ]
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "cf66f2c0-1dab-4ce8-b24b-a679588236e0",
  "imageUUID": "7f207035-9ee1-4e92-87c7-fe100069e1f8",
  "imageURL": "https://im.runware.ai/image/os/a16d07/ws/3/ii/7f207035-9ee1-4e92-87c7-fe100069e1f8.jpg",
  "cost": 0.015
}
```

---

### Eight-Reference Jigsaw Collage (Image to Image)

![Eight-Reference Jigsaw Collage](https://assets.runware.ai/examples/openai-gpt-image-1-mini/b7e4b1ed-fb73-49ff-95f5-eca2c9fa3e02.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "f21aa7c5-fb86-46a8-9c08-2e5f66e1497b",
  "model": "openai:1@2",
  "positivePrompt": "Create a square jigsaw puzzle composition assembled from eight reference images. Show interlocking puzzle pieces with clean cut lines and subtle shadows between pieces, arranged into one cohesive finished puzzle viewed from directly above. Each region should clearly echo one reference image while blending harmoniously at the seams through color rhythm and composition. Include tactile cardboard texture, finely printed surface detail, and a few slightly shifted edge pieces to emphasize the puzzle concept. Bright, imaginative, richly detailed, polished commercial product photography style, highly legible piece boundaries, balanced contrast, coherent lighting.",
  "width": 1024,
  "height": 1024,
  "providerSettings": {
    "openai": {
      "quality": "medium",
      "background": "opaque"
    }
  },
  "inputs": {
    "referenceImages": [
      "https://assets.runware.ai/assets/inputs/7ee174c0-3e3a-4d82-917a-0661ca3974c8.jpg",
      "https://assets.runware.ai/assets/inputs/c1117918-a716-4bb6-a73a-05d598f50e56.jpg",
      "https://assets.runware.ai/assets/inputs/e34c3c7e-c1b3-4cef-af33-07e02354f78b.jpg",
      "https://assets.runware.ai/assets/inputs/08dcd947-a5f9-48da-b48c-3d6d55f60eac.jpg",
      "https://assets.runware.ai/assets/inputs/fd78b586-6142-4169-b726-82abfb3d3c0d.jpg",
      "https://assets.runware.ai/assets/inputs/ddc89501-e884-4ed5-be47-1dc67339389e.jpg",
      "https://assets.runware.ai/assets/inputs/a6d40c60-af65-4abd-a2ed-ec23dee6869a.jpg",
      "https://assets.runware.ai/assets/inputs/0f9ecad7-c466-4fee-b3f8-3a7a6917834a.jpg"
    ]
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "f21aa7c5-fb86-46a8-9c08-2e5f66e1497b",
  "imageUUID": "35301ed9-0142-497e-be6a-181057fd4714",
  "imageURL": "https://im.runware.ai/image/os/a07d11/ws/2/ii/35301ed9-0142-497e-be6a-181057fd4714.jpg",
  "cost": 0.011
}
```

---

### Kite-Strewn Salt Flats Procession (Text to Image)

![Kite-Strewn Salt Flats Procession](https://assets.runware.ai/examples/openai-gpt-image-1-mini/723bde33-8e19-4888-866e-9ef914896f39.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "df1e14ba-7238-4727-95d3-960fb0035dc7",
  "model": "openai:1@2",
  "positivePrompt": "A surreal processional scene across vast white salt flats at golden afternoon, inspired by seed 94063: dozens of giant handmade kites shaped like fish, bells, and geometric masks drifting low in the wind, their strings held by travelers in layered patchwork garments with copper ornaments and indigo scarves. In the center, a narrow wheeled platform carries a small mechanical orchard of potted citrus trees and spinning pinwheels. The ground reflects the sky like polished glass, creating elegant symmetry. Far in the distance, striped hills shimmer with heat haze and flocks of tiny birds arc overhead. Include several readable hand-painted words on kite fabric such as \"North Wind\", \"Keep Singing\", and \"Turn Home\". Style: richly detailed editorial fantasy illustration with crisp forms, expressive color contrast, tactile fabric textures, luminous atmosphere, and a sense of quiet wonder. Wide-angle composition, dynamic diagonal kite lines, highly imaginative yet believable worldbuilding.",
  "width": 1536,
  "height": 1024,
  "providerSettings": {
    "openai": {
      "quality": "medium",
      "background": "opaque"
    }
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "df1e14ba-7238-4727-95d3-960fb0035dc7",
  "imageUUID": "61178dae-ff6b-414a-93aa-62f334d74d56",
  "imageURL": "https://im.runware.ai/image/os/a12d13/ws/3/ii/61178dae-ff6b-414a-93aa-62f334d74d56.jpg",
  "cost": 0.015
}
```

---

### Festival Mask Style Fusion (Image to Image)

![Festival Mask Style Fusion](https://assets.runware.ai/examples/openai-gpt-image-1-mini/eb6a21b4-be40-4f3b-aa1e-03731bc1ce3b.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "43d11cf7-6b54-4c3e-be8f-8395b161f2bf",
  "model": "openai:1@2",
  "positivePrompt": "Create a singular ceremonial mask design by fusing all four reference images into one cohesive object. Preserve the fox-like silhouette and carved handmade character from the wooden mask, apply porcelain surface treatment with cobalt floral brushwork and delicate crackle glaze, add selective feather accents around the brow and cheeks in saffron, magenta, teal, and cream, and incorporate intricate silver filigree trims with tiny coin and bell ornaments. Centered composition, highly detailed craftsmanship, refined studio lighting, crisp edges, elegant cultural-festival aesthetic, premium product photography feel, visually balanced and original.",
  "width": 1024,
  "height": 1024,
  "providerSettings": {
    "openai": {
      "quality": "medium",
      "background": "opaque"
    }
  },
  "inputs": {
    "referenceImages": [
      "https://assets.runware.ai/assets/inputs/b681fd3d-f0f5-4745-9003-6a8ce5d66c90.jpg",
      "https://assets.runware.ai/assets/inputs/f2c79825-b040-4ee4-99ce-5908c65ab8be.jpg",
      "https://assets.runware.ai/assets/inputs/0a2ca742-17c1-42f8-a5af-27c4bee30058.jpg",
      "https://assets.runware.ai/assets/inputs/ce3f3bd8-c213-4885-aaf2-008b7613046e.jpg"
    ]
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "43d11cf7-6b54-4c3e-be8f-8395b161f2bf",
  "imageUUID": "a3f8b7a9-0a6b-40c7-9ffd-28708a2a8437",
  "imageURL": "https://im.runware.ai/image/os/a12d13/ws/2/ii/a3f8b7a9-0a6b-40c7-9ffd-28708a2a8437.jpg",
  "cost": 0.011
}
```