Seedream 5.0 API

Name: Seedream 5.0
Brand: ByteDance
Price: 0.027 USD
Availability: InStock

ByteDance's cost-effective image generation workhorse. 2K output, text-to-image and image-to-image editing with reference support, batch generation - all at $0.027 per image, any resolution.

$0.027

Per image

Up to 2K

Resolution

T2I + I2I

Modes

1-8

Images per request

Watermark notice — Every image model on NovAI is served by a Chinese provider and burns a visible AI-generated label such as AI生成 into the corner of the output under China’s labelling rules — NovAI cannot switch it off. Video output varies by model: in our 4 August 2026 tests Seedance 2.0 and CogVideoX-Flash showed no visible label, while Hunyuan Video 1.5 is labelled. Text and chat models are not affected. Which models, and what it rules out →

Why use Seedream 5.0 on NovAI?

$0.027 flat per image - same price at any supported resolution, no per-megapixel surprises
Official direct access - NovAI routes to ByteDance's official endpoint, day-one model availability
Image-to-image editing - pass a reference image URL plus an instruction
Batch generation - up to 8 images per request for high-volume production
Strong prompt adherence - reliable for e-commerce and marketing assets
USD billing, no Chinese payment methods needed - Volcano Engine direct requires a Chinese phone number and CNY payment

Not listed on OpenRouter. This tier of ByteDance image models is official-direct exclusive.

Model ID alias: doubao-seedream-5.0 and doubao-seedream-4.0 route to the same ByteDance Seedream 5.0 upstream at the same $0.027 price. See also the doubao-seedream-4.0 page and the 4K flagship Seedream 5.0 Pro.

Best use cases

High-volume e-commerce product imagery
Marketing and social assets at scale
Image editing pipelines (I2I with reference)
Batch creative variations for A/B testing

Quick start

Text-to-Image

curl -X POST https://aiapi-pro.com/v1/images/generations \
  -H "Authorization: Bearer $NOVAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seedream-5.0",
    "prompt": "A serene lake at sunset with mountains",
    "n": 1,
    "size": "2048x2048"
  }'

Image-to-Image (Reference Image)

curl -X POST https://aiapi-pro.com/v1/images/generations \
  -H "Authorization: Bearer $NOVAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seedream-5.0",
    "prompt": "Make the sky more dramatic",
    "image": "https://example.com/original.jpg",
    "n": 1,
    "size": "2048x2048"
  }'

Works with any OpenAI-compatible SDK - just set base_url to https://aiapi-pro.com/v1 and use your NovAI API key. Full reference in the API docs.