Seedream 5.0 Lite API — 2K & 3K Doubao Image Generation
Seedream 5.0 Lite is ByteDance Doubao's lean image generation model. Render at 2K or 3K, send reference images for image-to-image, and batch up to four variations per call — all through reApi's OpenAI-compatible endpoint.
Free text · required · detailed prompts produce better results
Provide a prompt or at least one reference image / video / frame.
Nine ratios from 1:1 to 21:9 — auto matches your reference image
2K for fast iteration · 3K for hero / print work
1–4 images per request · n>1 auto-enables group mode
Public HTTPS URLs · jpeg or png · ≤ 10 MB each
jpeg for size · png for transparency
disabled · auto — upstream auto-promotes to auto when count > 1
Only meaningful when sequential mode is auto
Off by default
What you can build
Real workflows powered by this model.
Render hero shots at 2K and 3K
Seedream 5.0 Lite renders at 2K or 3K — sharp enough for the homepage hero, the product card, the campaign banner. Describe the shot, set resolution to 3K when the asset goes to print or a retina display, and the file lands in seconds. The same prompt template that drafted at 2K scales to 3K without recomposition, so a Seedream 5.0 Lite hero shot stays visually consistent across deployment surfaces.
Render at 3K
Batch four variations per call
Set n to 4 and Seedream 5.0 Lite returns four variations in one request. The upstream auto-enables group mode under the hood, so you spend one API call and get a row of options to A/B in product reviews — no scripting an outer loop, no extra polling, one task ID covers the batch. Useful for moodboards, product card variants, and creative review.
Image-to-image with multiple references
Pass references in image_urls — product cutouts, environment plates, mood frames — and Seedream 5.0 Lite fuses them into one composition. All references are public HTTPS URLs (upload to your own R2 / S3 / OSS first). At 3K the texture detail holds up under print zoom; at 2K the file is light enough for ad-network creative pipelines.
Pricing
Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.
| Mode | Category | Unit | Price |
|---|---|---|---|
| Per image | |||
| 2K | 1 image | $0.031 31 credits | |
| 3K | 1 image | $0.031 31 credits | |
Why reAPI
2K and 3K from one endpoint
Seedream 5.0 Lite covers a sharp two-tier resolution ladder. Send doubao-seedream-5-0-lite to /api/v1/images/generations with the resolution field set to 2K or 3K — same JSON shape across both. No client-side branching, no separate model id for higher detail.
Credits in, image out — no surprises
1 credit equals $0.001 USD. Seedream 5.0 Lite charges a flat per-image rate at 2K and 3K, so estimating cost is a single-multiply on the n parameter. The estimator on this page costs your exact configuration before submit, and the Seedream 5.0 Lite charge in the dashboard equals what you saw at request time.
Async-first for production stacks
Submit a Seedream 5.0 Lite task, get a task_id back, poll until done. Failed and moderated requests are not charged. Drop Seedream 5.0 Lite into the same task plumbing you use for every other reApi model — the lifecycle is identical, the JSON shape matches the OpenAI image-generations contract.
Integrate Seedream 5.0 Lite in three steps
- step 01
Create an API key
Sign up at reApi and grab a key. Free signup credits cover dozens of Seedream 5.0 Lite generations, enough to ship the first 2K hero or campaign asset before topping up.
Open - step 02
Submit a generation
POST to /api/v1/images/generations with model: doubao-seedream-5-0-lite, a prompt, and optional size / resolution / n. Seedream 5.0 Lite returns a task_id immediately — your handler is free to move on.
Open - step 03
Poll the result
GET /api/v1/tasks/:id until status is completed. The Seedream 5.0 Lite response carries image URLs valid for 72 hours; mirror to your own storage if you need them longer.
Open
Frequently asked questions
Common questions about this model.
POST /api/v1/images/generations
Authorization: Bearer $REAPI_API_KEY
Content-Type: application/json
{
"prompt": "..."
}Ready to ship?
Try it in the playground or grab an API key to integrate now.