Text to Image

Krea 3

Krea 3 is an advanced unified image generation and editing model. Edit photos using natural language instructions, blend up to 8 reference images, or generate pristine artwork at 1K or 2K resolutions with adaptive reasoning modes.

$0.045/run Studio Model Popular New 138 runs
Krea 3
Generation time: 0s

Your result will appear here

Configure parameters and press Run, or press Ctrl - ↵ Enter.

Run the model to see raw JSON response

API Endpoint

POST https://lumozai.com/api/v4/run

Use this endpoint to run the model with your parameters. Authentication is required using your API key.

Sample Code (PHP cURL)

<?php
// API endpoint URL
$apiUrl = 'https://lumozai.com/api/v4/run';

// Your API key
$apiKey = 'YOUR_API_KEY';

// Model parameters
$params = [
    'model_id' => 'krea-3',
    'prompt' => '',
    'images[]' => 'https://example.com/image.jpg', // Example image URL
    'aspect_ratio' => 'auto',
    'resolution' => '2k',
    'thinking_mode' => 'fast',
    'regional_edit' => 'false',
    'negative_prompt' => '',
    'seed' => '',
];

// Initialize cURL session
$curl = curl_init();

// Set cURL options
curl_setopt_array($curl, [
    CURLOPT_URL => $apiUrl,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => $params,
    CURLOPT_HTTPHEADER => [
        'Accept: application/json',
        'Authorization: Bearer ' . $apiKey
    ]
]);

// Execute the request
$response = curl_exec($curl);
$httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);

// Check for errors
if (curl_errno($curl)) {
    echo 'cURL Error: ' . curl_error($curl);
} else {
    // Process the response
    $result = json_decode($response, true);
    
    if ($httpCode == 200 && isset($result['success']) && $result['success']) {
        // Handle successful response
        echo "Model output: ";
        print_r($result['data']['output']);
    } else {
        // Handle error response
        echo "Error: " . ($result['message'] ?? 'Unknown error');
    }
}

// Close cURL session
curl_close($curl);

Request Parameters

Parameter Type Required Description
model_id string Required The ID of the model to run (krea-3)
api_key string Required Your API key for authentication (sent via Bearer token in the Authorization header)
prompt string Required Instruction describing the image to generate, or the edit to make. For edits, specify what should change and what should stay the same.
images array Optional Up to 8 input reference images to edit, restyle, or combine. Leave empty for text-to-image generation.
aspect_ratio string Optional Aspect ratio of the generated image. "auto" picks the optimal framing from your prompt or input images.
resolution string Optional Output image resolution tier.
thinking_mode string Optional How much reasoning and planning happens before generation. "fast" is rapid and works for most requests. "high" plans complex multi-step edits more thoroughly.
regional_edit string Optional Change only specific parts of the image and keep the rest untouched (requires at least one reference image).
negative_prompt string Optional Specific visual artifacts, concepts, or elements to avoid in the output.
seed array Optional Specific random seed integer.

Response Format

{
    "success": true,
    "data": {
        "output": "https://lumozai.com/storage/outputs/image_12345.jpg"
    }
}

Model Pricing

Pay only for what you run. Charges are deducted directly from your account balance with zero recurring commitments.

Rate per generation
$ 0.045 / generation
$45.00 per 1,000 generations
Cost Estimator
1,000 generations
Estimated Total $45.00
Add Balance
Automatic instant refund if any run fails • Credits valid for 1 year