GPT Image 1 Mini - Background Replacer

Replace and transform image backgrounds using natural language descriptions with OpenAI's GPT Image 1 Mini model. This cost-effective solution delivers excellent background replacement quality with faster processing speeds, perfect for high-volume workflows, rapid iterations, and budget-conscious projects without compromising on professional results.

Endpoint

POSThttps://api.1min.ai/api/features

Request Headers

Field	Value
API-KEY	`<api-key>`
Content-Type	`application/json`

Parameters

Parameter	Type	Required	Description
`type`	string	Yes	Feature type identifier. Must be `BACKGROUND_REPLACER`
`model`	string	Yes	AI model identifier. Must be `gpt-image-1-mini`
`promptObject`	object	Yes	Configuration object containing background replacement parameters

Prompt Object Parameters

Parameter	Type	Required	Description	Default
`imageUrl`	string	Yes	Path to the source image for background replacement	-
`prompt`	string	Yes	Description of desired background scene (max 4000 characters)	-
`size`	string	Yes	Output image dimensions	`1024x1024`
`quality`	string	No	Quality level of the generated background	`medium`
`background`	string	No	Background handling mode for the generated image	`auto`

Size Options

Size	Description
`1024x1024`	Square format (1:1)
`1024x1536`	Portrait format (2:3)
`1536x1024`	Landscape format (3:2)

Quality Options

Quality	Description	Processing Speed	Use Case
`low`	Good quality, fastest processing	Very Fast	Quick iterations, previews, drafts
`medium`	Excellent quality, fast processing	Fast	Standard workflows, most projects
`high`	Premium quality, moderate speed	Moderate	Professional outputs, final deliverables

Background Options

Background	Description	Best For
`auto`	AI automatically chooses the most suitable background handling	General use, easiest default
`opaque`	Force a solid, non-transparent background	Standard photos, social posts
`transparent`	Preserve or generate transparency where supported	Product cutouts, compositing

Code Examples

cURL
JavaScript
Python

curl -X POST "https://api.1min.ai/api/features" \
-H "API-KEY: <api-key>" \
-H "Content-Type: application/json" \
-d '{
  "type": "BACKGROUND_REPLACER",
  "model": "gpt-image-1-mini",
  "promptObject": {
    "imageUrl": "development/images/2025_12_04_18_03_51_184_cat.png",
    "prompt": "modern office environment with glass windows, city skyline view, professional corporate setting",
    "size": "1024x1024",
    "quality": "medium",
    "background": "auto"
  }
}'

fetch('https://api.1min.ai/api/features', {
method: 'POST',
headers: {
  'Content-Type': 'application/json',
  'API-KEY': 'YOUR_API_KEY'
},
body: JSON.stringify({
  type: 'BACKGROUND_REPLACER',
  model: 'gpt-image-1-mini',
  promptObject: {
    imageUrl: 'development/images/2025_12_04_18_03_51_184_cat.png',
    prompt: 'modern office environment with glass windows, city skyline view, professional corporate setting',
    size: '1024x1024',
    quality: 'medium',
    background: 'auto'
  }
})
})
.then(response => response.json())
.then(data => console.log(data));

import requests

url = "https://api.1min.ai/api/features"
headers = {
"Content-Type": "application/json",
"API-KEY": "YOUR_API_KEY"
}

data = {
"type": "BACKGROUND_REPLACER",
"model": "gpt-image-1-mini",
"promptObject": {
  "imageUrl": "development/images/2025_12_04_18_03_51_184_cat.png",
  "prompt": "modern office environment with glass windows, city skyline view, professional corporate setting",
  "size": "1024x1024",
  "quality": "medium",
  "background": "auto"
}
}

response = requests.post(url, headers=headers, json=data)
print(response.json())

Interactive Playground

API Playground

https://api.1min.ai/api/features

AI Model *

Source Image URL *

Path to the source image for background replacement

Background Description *

Describe the new background you want (max 4000 characters)

Image Size *

Dimensions of the output image

Quality Level

Quality level affects detail and credit cost

Background Mode

How the generated background should be handled

Generated cURL Command:

curl -X POST "https://api.1min.ai/api/features" \
  -H "API-KEY: <your-api-key>" \
  -H "Content-Type: application/json" \
  -d '{
  "type": "BACKGROUND_REPLACER",
  "model": "gpt-image-1-mini",
  "promptObject": {
    "imageUrl": "development/images/2025_12_04_18_03_51_184_cat.png",
    "prompt": "modern office environment with glass windows, city skyline view, professional corporate setting",
    "size": "1024x1024",
    "quality": "medium",
    "background": "auto"
  }
}'

Response Format

{
"aiRecord": {
  "uuid": "b1g2r3m4-v5e6-7890-abcd-ef1234567890",
  "userId": "user-12345",
  "teamId": "team-67890",
  "teamUser": {
    "teamId": "team-67890",
    "userId": "user-12345",
    "userName": "Jane Designer",
    "userAvatar": "https://example.com/avatar.jpg",
    "status": "ACTIVE",
    "role": "ADMIN",
    "creditLimit": 100000000,
    "usedCredit": 28000,
    "createdAt": "2025-01-01T00:00:00.000Z",
    "createdBy": "SYSTEM",
    "updatedAt": "2025-01-15T14:00:00.000Z",
    "updatedBy": "SYSTEM"
  },
  "model": "gpt-image-1-mini",
  "type": "BACKGROUND_REPLACER",
  "metadata": null,
  "rating": null,
  "feedback": null,
  "conversationId": null,
  "status": "SUCCESS",
  "createdAt": "2025-01-15T14:00:00.000Z",
  "aiRecordDetail": {
    "promptObject": {
      "imageUrl": "development/images/2025_12_04_18_03_51_184_cat.png",
      "prompt": "modern office environment with glass windows, city skyline view, professional corporate setting",
      "size": "1024x1024",
      "quality": "medium",
      "background": "auto"
    },
    "resultObject": [
      "development/images/2025_01_15_14_00_30_001_background_replaced.png"
    ],
    "responseObject": {}
  },
  "additionalData": null,
  "temporaryUrl": "https://s3.us-east-1.amazonaws.com/asset.1min.ai/development/images/2025_01_15_14_00_30_001_background_replaced.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=EXAMPLE_CREDENTIAL&X-Amz-Date=20250115T140000Z&X-Amz-Expires=604800&X-Amz-Signature=example_signature&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject"
}
}

Use Cases

High-Volume Production

Batch Processing: Process large numbers of images quickly and cost-effectively
E-commerce Catalogs: Maintain consistent backgrounds across extensive product lines
Social Media Content: Create platform-optimized backgrounds at scale
Marketing Campaigns: Generate variations for A/B testing efficiently
Stock Photography: Produce diverse background variations rapidly

Rapid Iteration & Testing

Creative Exploration: Test multiple background concepts quickly
Client Previews: Generate concept previews before final production
Design Variations: Explore different background styles efficiently
Campaign Testing: Create test variations for market research
Workflow Optimization: Quick iterations during creative development

Cost-Effective Projects

Startup Workflows: Professional results within budget constraints
Content Marketing: Regular content creation without excessive costs
Educational Projects: Learning and experimentation with AI tools
Personal Projects: High-quality results for portfolios and personal use
Prototyping: Test concepts before scaling to premium models

Professional Applications

Real Estate: Property marketing with consistent, professional backgrounds
Corporate Headshots: Standardize employee photo backgrounds
Event Photography: Post-process event photos with branded backgrounds
Product Photography: Create clean, consistent product presentations
Portfolio Work: Professional-grade background replacements

Endpoint​

Request Headers​

Parameters​

Prompt Object Parameters​

Size Options​

Quality Options​

Background Options​

Code Examples​

Interactive Playground​