# Seedream 5.0 Flash Text to Image - Core.Today AI API

> ByteDance Seedream 5.0 Flash text-to-image via Fal.AI. Fast, low-cost image generation built for workflows where speed and budget matter, with strong realism and typography, at 1K-2K output.

- **Provider**: ByteDance
- **Model ID**: bytedance/seedream/v5/flash/text-to-image
- **Category**: Image Generation
- **Credits**: 63 per image (63 credits/image, same price at every size)
- **Speed**: Fast
- **Quality**: High

## Features
- Fast, budget-friendly generation
- Strong realism and in-image typography
- Automatic aspect ratio with auto_1K / auto_2K presets
- Up to 6 images per request, flat price per image

## Use Cases
- High-volume ad and social creative
- Product and lifestyle imagery at scale
- Posters and banners with legible text
- Rapid concept exploration

## API Endpoint

Base URL: https://api.core.today/v1
Create Prediction: POST /predictions
Get Status: GET /predictions/{job_id}

## Authentication
Header: X-API-Key: YOUR_API_KEY

## Input Parameters

### Required
- **prompt**: string - The text prompt used to generate the image.

### Optional
- **image_size**: string (default: auto_2K) - Output size preset. auto_1K / auto_2K pick the aspect ratio automatically; total pixels are between 1024x1024 and 2048x2048. Same price for every size.
  Options: auto_2K, auto_1K, square_hd, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9
- **num_images**: integer (default: 1) - Number of separate generations to run, one image each (1-6). Charged per image.
- **output_format**: string (default: jpeg) - The file format of the generated image.
  Options: jpeg, png
- **enable_safety_checker**: boolean (default: true) - If set to true, the safety checker will be enabled.

## Examples

### Editorial fashion portrait
A saturated studio editorial at auto 2K.
```json
{
  "model": "bytedance/seedream/v5/flash/text-to-image",
  "input": {
    "prompt": "Vibrant editorial of a model in contemporary fashion fused with West African textile patterns and beadwork, bold aesthetic, saturated palette, dramatic studio lighting, striking contemporary portraiture",
    "image_size": "auto_2K",
    "output_format": "jpeg"
  }
}
```

### Café poster with text
A portrait poster with legible headline typography, three variations.
```json
{
  "model": "bytedance/seedream/v5/flash/text-to-image",
  "input": {
    "prompt": "Minimal café poster, a steaming latte on a wooden table, headline text 'SLOW MORNINGS' in bold serif at the top",
    "image_size": "portrait_4_3",
    "num_images": 3
  }
}
```

## Response Format
```json
{
  "job_id": "abc123",
  "status": "pending | processing | completed | failed",
  "result": "URL or data (when completed)"
}
```

## Usage Flow
1. POST /predictions with model and input -> receive job_id
2. GET /predictions/{job_id} -> poll until status is completed or failed
3. Result contains output URL(s)

## Tips
- Every size preset costs the same, so use auto_2K unless you need smaller files.
- num_images runs separate generations — each image is billed.
- Put exact text in quotes in the prompt for better typography.
- Use Seedream 5.0 Flash Edit when you need to modify or combine existing images.

## Documentation
https://fal.ai/models/bytedance/seedream/v5/flash/text-to-image