Flux Redux Schnell - Image Variator

Create variations of existing images using Black Forest Labs' Flux Redux Schnell model. This fast and efficient model provides quick image variations with good quality at a lower cost, perfect for rapid iteration and prototyping.

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-schnell`
`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: 4)
`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-schnell",
"promptObject": {
  "imageUrl": "images/2025_10_26_05_43_42_184_cat.png",
  "format": "webp",
  "aspect_ratio": "4:3",
  "num_outputs": 2,
  "num_inference_steps": 4,
  "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-schnell',
  promptObject: {
    imageUrl: 'development/images/sample_image.jpeg',
    format: 'webp',
    aspect_ratio: '4:3',
    num_outputs: 2,
    num_inference_steps: 4,
    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-schnell",
"promptObject": {
  "imageUrl": "images/2025_10_26_05_43_42_184_cat.png",
  "format": "webp",
  "aspect_ratio": "4:3",
  "num_outputs": 2,
  "num_inference_steps": 4,
  "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). Schnell is optimized for 1-8 steps

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-schnell",
  "promptObject": {
    "imageUrl": "development/images/sample_image.jpeg",
    "format": "webp",
    "aspect_ratio": "4:3",
    "num_outputs": 2,
    "num_inference_steps": 4,
    "output_quality": 80,
    "megapixels": "1"
  }
}'

Response Format

{
"aiRecord": {
  "uuid": "4febe765-6340-4c5d-91af-1a5c44c42cfd",
  "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": 438000,
    "createdAt": "2025-10-20T04:13:40.847Z",
    "createdBy": "SYSTEM",
    "updatedAt": "2025-10-22T11:16:49.654Z",
    "updatedBy": "SYSTEM"
  },
  "model": "black-forest-labs/flux-redux-schnell",
  "type": "IMAGE_VARIATOR",
  "metadata": null,
  "rating": null,
  "feedback": null,
  "conversationId": null,
  "status": "SUCCESS",
  "createdAt": "2025-10-22T11:17:30.345Z",
  "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": 4
    },
    "resultObject": [
      "development/images/2025_10_22_18_18_02_887_111465.undefined",
      "development/images/2025_10_22_18_18_02_899_198062.undefined"
    ],
    "responseObject": {}
  },
  "additionalData": null,
  "temporaryUrl": "https://s3.us-east-1.amazonaws.com/asset.1min.ai/development/images/2025_10_22_18_18_02_887_111465.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=20251022T111806Z&X-Amz-Expires=604800&X-Amz-Signature=e6d104d0536aa0eec6393c70af4a65f0bdeda218604d210b5af242cb9bdb80da&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject"
}
}

Use Cases

Rapid Prototyping: Quick iterations for design concepts
Social Media Content: Fast generation for daily content needs
A/B Testing: Generate multiple variations for testing
Content Exploration: Explore different creative directions quickly
Budget Projects: Cost-effective solution for smaller projects
Real-time Applications: Fast generation for interactive applications
Workflow Integration: Quick variations in automated workflows

Tips for Best Results

Inference Steps:
- Use 4 steps for optimal speed-quality balance
- Use 1-2 steps for maximum speed (lower quality)
- Use 6-8 steps for better quality (still fast)
- Avoid high step counts (diminishing returns)
Aspect Ratios: Choose the right ratio for your platform:
- 1:1 - Instagram posts, profile pictures
- 16:9 - YouTube thumbnails, landscape content
- 9:16 - Instagram Stories, TikTok videos
- 4:5 - Instagram feed optimization
Format Selection: WebP for web use, PNG for transparency, JPEG for compatibility
Batch Generation: Generate multiple outputs for variety and selection
Quality Settings: 70-80 quality is usually sufficient for web use

Notes

Flux Redux Schnell is optimized for speed over maximum quality
Best results achieved with 1-8 inference steps
Significantly faster and more cost-effective than Flux Redux Dev
Excellent for rapid iteration and content exploration
Processing time is typically under 30 seconds
Perfect for applications requiring real-time or near real-time generation
Lower credit cost makes it ideal for high-volume use cases

Endpoint​

Request Headers​

Parameters​

Supported Aspect Ratios​

Output Formats​

Code Examples​

Interactive Playground​