ByteDance · Seedream 5.0
Seedream 5 Pro API Premium Image Generation
Generate premium 1K/2K images with reference image support via a single API call — no subscription, pay per image.
Seedream 5 Pro Features
Professional-grade Seedream 5.0 image generation with advanced capabilities, available through one simple API.
1K & 2K Resolutions
Generate images at 1K (default) or 2K resolution. 2K renders at roughly twice the pixel dimensions of 1K for higher detail.
Reference Image Support
Use reference images to guide generation. First reference image is free, additional images cost $0.003 each.
Premium Quality Output
The Pro tier of Seedream 5.0 delivers higher quality results than Lite, optimized for professional workflows.
Content Moderation Options
Choose between standard moderation or less-restriction mode for more creative freedom.
Flexible Aspect Ratios
From 1:1 to 21:9 — eight aspect ratios to fit social posts, banners, product shots and more.
Fast Generation
Optimized inference for quick turnaround times on your image generation tasks.
Integrate in Minutes
Get your API key
Sign up at piapi.ai and grab your key from the workspace.
Top up credits
Pay as you go from $0.068/image — no subscription needed.
Create & poll tasks
POST a task, then poll GET /api/v1/task/{task_id} until completed.
Quick Start
Full Docs →curl -X POST 'https://api.piapi.ai/api/v1/task' \
-H 'X-API-Key: YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"model": "seedream",
"task_type": "seedream-5-pro",
"input": {
"prompt": "A beautiful sunset over mountains, photorealistic",
"aspect_ratio": "16:9",
"size": "2K"
}
}'Base URL
api.piapi.ai
Auth
X-API-Key header
Result
output.image_urls
Seedream 5 Pro Pricing
Pay per image, no subscription required
1K Resolution
Default- Default resolution for fast generation
- Standard content moderation
- First reference image free
- Additional ref images: $0.003 each
2K Resolution
- 2x pixel dimensions of 1K
- Standard content moderation
- First reference image free
- Additional ref images: $0.003 each
1K Less Restriction
- 1K with relaxed content moderation
- Permissive content policy
- +25% over standard tier
- First reference image free
2K Less Restriction
- 2K with relaxed content moderation
- Permissive content policy
- +25% over standard tier
- First reference image free
Frequently Asked Questions
What is the difference between Seedream 5 Pro and Seedream 5 Lite?
Seedream 5 Pro offers higher quality output with 1K and 2K resolutions, while Lite supports 2K and 3K. Pro has reference image support with the first image free, while Lite has flat pricing with no reference image charges. Pro is optimized for professional workflows requiring premium quality.
How does reference image pricing work?
The first reference image is included free with each generation. Any additional reference images cost $0.003 each. This allows you to guide the generation with visual references at minimal cost.
What resolutions are available?
Seedream 5 Pro supports 1K (default) and 2K resolutions. 2K renders at roughly twice the pixel dimensions of 1K. Note that 3K is only available on the Lite model.
What is the less-restriction model?
The less-restriction variant (-less-restriction) offers more permissive content moderation at a 25% markup over the standard tier. This is useful for creative projects that need more flexibility.
Can I get a refund if I'm not satisfied?
Yes, we offer refunds for unused credits. Please contact our support team for assistance with refund requests.
How do I get started?
Sign up at piapi.ai, add credits to your account, and you can start generating images immediately via the API or our web workspace.
Have more questions? Check our API documentation or compare with Seedream 5 Lite.