Seedream 5.0 Lite API

Unified multimodal image model that reasons through prompts before rendering, producing high-resolution and consistent edits and brand visuals.

ByteDanceImage GenerationMalaysiaProprietary EndpointNew

About Seedream 5.0 Lite

Unified multimodal image model that reasons through prompts before rendering, producing high-resolution and consistent edits and brand visuals.

Also known as Seedream Lite, Seedream-5.0-Lite

reasoningediting

Seedream 5.0 Lite specs

Model ID
seedream-5-0-lite
Provider
ByteDance
Category
Image Generation
Input
text, image
Output
image
Region
Malaysia
Endpoints
POST /v1/images/generations

Seedream 5.0 Lite API pricing

Live pay-as-you-go rates from the EmpirioLabs catalog. You are billed only for what you use, with no monthly minimum.

Type
Spec
Rate
Standard
per image
$0.0350
Compare on the full pricing page

How to call the Seedream 5.0 Lite API

Seedream 5.0 Lite runs through POST /v1/images/generations. The request returns a job_id right away; poll GET /v1/jobs/{job_id} until the job completes and read the output URLs from the result. Or add "sync": true to skip polling: the request stays open and returns the finished OpenAI-style image response directly, so OpenAI SDKs work as-is. Get an API key from the EmpirioLabs dashboard.

cURL: submit the job
curl https://api.empiriolabs.ai/v1/images/generations \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedream-5-0-lite",
    "prompt": "Describe what you want Seedream 5.0 Lite to generate."
  }'
cURL: poll for the result
curl https://api.empiriolabs.ai/v1/jobs/JOB_ID \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY"
Python
import requests

response = requests.post(
    "https://api.empiriolabs.ai/v1/images/generations",
    headers={"Authorization": "Bearer YOUR_EMPIRIOLABS_API_KEY"},
    json={
        "model": "seedream-5-0-lite",
        "prompt": "Describe what you want Seedream 5.0 Lite to generate.",
    },
)
job = response.json()

# Generation runs as an async job. Poll until it completes.
import time
while True:
    status = requests.get(
        f"https://api.empiriolabs.ai/v1/jobs/{job['job_id']}",
        headers={"Authorization": "Bearer YOUR_EMPIRIOLABS_API_KEY"},
    ).json()
    if status.get("status") in ("completed", "failed"):
        print(status)
        break
    time.sleep(5)
Full Seedream 5.0 Lite API reference

Seedream 5.0 Lite API parameters

Request parameters supported by the Seedream 5.0 Lite API on EmpirioLabs. Defaults apply when a field is omitted.

ParameterTypeDefaultRange / valuesDescription
promptstring--Text prompt. With image attached, becomes an editing instruction. For batch mode, describe each image sequentially.
aspect_ratioenumautoauto, 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 21:9Auto lets the model pick; with a reference image it follows the closest preset.
qualityenum2K2K, 3K2K ≈ 4MP. 3K ≈ 9MP.
use_custom_sizebooleanfalse-Override aspect_ratio + quality with explicit pixels.
custom_widthnumber-1024 to 3072Pixels. Total area must be in [2.56MP, 10.4MP]; aspect must be in [1:16, 16:1]. Only when use_custom_size=true.
custom_heightnumber-1024 to 3072Pixels. Total area must be in [2.56MP, 10.4MP]; aspect must be in [1:16, 16:1]. Only when use_custom_size=true.
imagearray--Up to 14 reference image URLs for editing. Triggers image-edit mode.
batch_enabledbooleanfalse-Generate a cohesive set of related images from a single prompt.
max_imagesnumber41 to 15Batch mode only. Maximum images in the set; the model decides actual count. You're billed only for images returned.
watermarkbooleanfalse-Forwarded to BytePlus as watermark. When true, the upstream Seedream service stamps a small ByteDance/Seedream provenance mark on each generated image. EmpirioLabs...
output_formatenumpngjpeg, pngOutput media file format (mp3, wav, mp4, png, jpg, etc., depending on the endpoint).
response_formatenumurlurl, b64_jsonurl (default) returns a signed URL; b64_json returns inline base64.

Good to know

Multi-image reference combine and edit. Stronger reasoning before rendering than 4.0. Per generated image is billed; batch mode bills per actual image returned.

Seedream 5.0 Lite API: common questions

How much does the Seedream 5.0 Lite API cost?

On EmpirioLabs, Seedream 5.0 Lite is billed pay as you go: Standard $0.0350 per image. The live rate card on this page always matches what the API charges.

Which endpoint does Seedream 5.0 Lite use?

Seedream 5.0 Lite is served through POST /v1/images/generations on api.empiriolabs.ai with standard bearer-token authentication.

Can I try Seedream 5.0 Lite in the browser before integrating?

Yes. The EmpirioLabs playground runs Seedream 5.0 Lite in the browser with the same parameters the API exposes, so you can test prompts before writing code.

How do I get a Seedream 5.0 Lite API key?

Create an EmpirioLabs account, then generate a key under API Keys in the dashboard. Billing is pay-as-you-go credits, so you only pay for the requests you make.

Ready to use better endpoints?

Explore our models, or contact us about business inquiries, custom deployments, or anything else.