Flux Redux Dev - Image Variator

Create variations of existing images using Black Forest Labs' Flux Redux Dev model. This advanced model offers high-quality image variations with extensive customization options and superior output quality.

Image Upload Requirement

Before using this API, you must first upload your image using the Asset API. The imageUrl parameter should contain the file path returned from the Asset API upload response.

📖 See Asset API documentation for details on how to upload images.

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 `IMAGE_VARIATOR`
`model`	string	Yes	AI model identifier. Must be `black-forest-labs/flux-redux-dev`
`imageUrl`	string	Yes	Path to uploaded image file (from Asset API)
`format`	string	No	Output format: `webp`, `jpg`, `png` (default: `webp`)
`aspect_ratio`	string	No	Aspect ratio for output image (default: `4:3`)
`num_outputs`	number	No	Number of variations to generate (1-4, default: 1)
`num_inference_steps`	number	No	Number of inference steps (1-50, default: 28)
`seed`	number	No	Random seed for reproducible results
`output_quality`	number	No	Output quality (1-100, default: 80)
`disable_safety_checker`	boolean	No	Disable safety checker (default: false)
`megapixels`	string	No	Output resolution: `1`, `0.25` (default: `1`)

Supported Aspect Ratios

Ratio	Description	Best For
1:1	Square format	Social media posts, profile pictures
16:9	Widescreen	Landscape photography, banners
21:9	Ultra-wide	Cinematic content, panoramic views
3:2	Standard photo	Traditional photography
2:3	Portrait photo	Vertical content, mobile screens
4:5	Portrait social	Instagram posts, social media
5:4	Landscape photo	Print photography
3:4	Portrait format	Artistic portraits
4:3	Standard format	General purpose, presentations
9:16	Vertical video	Stories, mobile content
9:21	Ultra-tall	Mobile banners, vertical designs

Output Formats

Format	Description	Best For
webp	Modern web format	Web optimization, smaller file sizes
jpg	JPEG format	General use, compatibility
png	PNG format	High quality, transparency support

Code Examples

cURL
JavaScript
Python

curl --location 'https://api.1min.ai/api/features' \
--header 'API-KEY: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"type": "IMAGE_VARIATOR",
"model": "black-forest-labs/flux-redux-dev",
"promptObject": {
  "imageUrl": "images/2025_10_26_05_43_42_184_cat.png",
  "format": "webp",
  "aspect_ratio": "4:3",
  "num_outputs": 2,
  "num_inference_steps": 28,
  "output_quality": 80,
  "megapixels": "1"
}
}'

fetch('https://api.1min.ai/api/features', {
method: 'POST',
headers: {
  'Content-Type': 'application/json',
  'API-KEY': 'YOUR_API_KEY'
},
body: JSON.stringify({
  type: 'IMAGE_VARIATOR',
  model: 'black-forest-labs/flux-redux-dev',
  promptObject: {
    imageUrl: 'development/images/sample_image.jpeg',
    format: 'webp',
    aspect_ratio: '4:3',
    num_outputs: 2,
    num_inference_steps: 28,
    output_quality: 80,
    megapixels: '1'
  }
})
})

import requests

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

data = {
"type": "IMAGE_VARIATOR",
"model": "black-forest-labs/flux-redux-dev",
"promptObject": {
  "imageUrl": "images/2025_10_26_05_43_42_184_cat.png",
  "format": "webp",
  "aspect_ratio": "4:3",
  "num_outputs": 2,
  "num_inference_steps": 28,
  "output_quality": 80,
  "megapixels": "1"
}
}

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

Interactive Playground

API Playground

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

AI Model *

Image URL *

Path to the uploaded image file (obtained from Asset API)

Output Format

Format of the generated image

Aspect Ratio

Aspect ratio of the output image

Number of Outputs

Number of variations to generate (1-4)

Inference Steps

Number of inference steps (1-50). Higher values = better quality, slower generation

Seed

Random seed for reproducible results

Output Quality

Quality of the output image (1-100)

Disable Safety Checker

Disable content safety checking

Resolution

Output image resolution

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": "IMAGE_VARIATOR",
  "model": "black-forest-labs/flux-redux-dev",
  "promptObject": {
    "imageUrl": "development/images/sample_image.jpeg",
    "format": "webp",
    "aspect_ratio": "4:3",
    "num_outputs": 2,
    "num_inference_steps": 28,
    "output_quality": 80,
    "megapixels": "1"
  }
}'

Response Format

{
"aiRecord": {
  "uuid": "065487c6-0aa4-4f1a-a42f-fce931fcca8b",
  "userId": "c937fbcc-fa8f-4565-a440-c4d87f56fcb2",
  "teamId": "a4e176b2-dabb-451e-9c58-62b451fa9630",
  "teamUser": {
    "teamId": "a4e176b2-dabb-451e-9c58-62b451fa9630",
    "userId": "c937fbcc-fa8f-4565-a440-c4d87f56fcb2",
    "userName": "John Doe",
    "userAvatar": "https://lh3.googleusercontent.com/a/ACg8ocLqgsNsHRfmWF9d-E1RvJetVsEzxNOsOg-NXWNTpMxLDPJbwELI=s96-c",
    "status": "ACTIVE",
    "role": "ADMIN",
    "creditLimit": 100000000,
    "usedCredit": 363000,
    "createdAt": "2025-10-20T04:13:40.847Z",
    "createdBy": "SYSTEM",
    "updatedAt": "2025-10-22T11:01:18.098Z",
    "updatedBy": "SYSTEM"
  },
  "model": "black-forest-labs/flux-redux-dev",
  "type": "IMAGE_VARIATOR",
  "metadata": null,
  "rating": null,
  "feedback": null,
  "conversationId": null,
  "status": "SUCCESS",
  "createdAt": "2025-10-22T11:15:44.076Z",
  "aiRecordDetail": {
    "promptObject": {
      "format": "webp",
      "imageUrl": "images/2025_10_22_11_15_29_408_cat.png",
      "megapixels": "1",
      "num_outputs": 2,
      "aspect_ratio": "4:3",
      "output_quality": 80,
      "num_inference_steps": 28
    },
    "resultObject": [
      "development/images/2025_10_22_18_16_46_334_310279.undefined",
      "development/images/2025_10_22_18_16_46_389_332671.undefined"
    ],
    "responseObject": {}
  },
  "additionalData": null,
  "temporaryUrl": "https://s3.us-east-1.amazonaws.com/asset.1min.ai/development/images/2025_10_22_18_16_46_334_310279.undefined?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIAVRUVQEFIHSKAXGE7%2F20251022%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20251022T111649Z&X-Amz-Expires=604800&X-Amz-Signature=34b0cf8213382e4a705f856cc9211b17065f14b710131bea8edd70670f5b93b3&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject"
}
}

Use Cases

Professional Design: High-quality variations for commercial projects
Creative Exploration: Generate multiple artistic interpretations
Content Creation: Diverse visual content for marketing campaigns
Art Direction: Explore different styles and compositions
Brand Assets: Create variations of logos and brand imagery
Social Media: Generate content for different platform requirements
Print Design: High-resolution outputs suitable for print media

Tips for Best Results

Aspect Ratios: Choose the right ratio for your intended use:
- 1:1 - Perfect for Instagram posts and profile pictures
- 16:9 - Ideal for YouTube thumbnails and landscape content
- 9:16 - Great for Instagram Stories and TikTok
- 4:5 - Optimal for Instagram feed posts
Inference Steps:
- Use 28 steps for balanced quality and speed
- Use 40-50 steps for maximum quality (slower)
- Use 15-20 steps for faster generation (lower quality)
Output Quality: Set to 80-90 for most use cases, 100 for print quality
Format Selection: Use WebP for web, PNG for transparency, JPEG for compatibility
Resolution: Use 1MP for final outputs, 0.25MP for quick previews

Notes

Flux Redux Dev offers superior quality compared to Flux Redux Schnell
Higher inference steps result in better quality but longer processing time
The model excels at maintaining the original image's composition while adding creative variations
Safety checker can be disabled for artistic content that may be flagged incorrectly
Seed values ensure reproducible results across multiple generations
Processing time scales with inference steps and number of outputs

Endpoint​

Request Headers​

Parameters​

Supported Aspect Ratios​

Output Formats​

Code Examples​

Interactive Playground​