Seedream 5.0 Lite

[Core Function] Seedream 5.0 Lite is a smart, reasoning-enhanced image generation model with real-time web search capabilities. [Strengths] It excels at generating time-sensitive imagery, infographics, and content requiring deep world knowledge or online search, boasting superior prompt understanding and reasoning. [Best For] Highly recommended for: current-event posters, text-heavy designs, and concept art requiring complex logical reasoning. [Limitations] As a ‘Lite’ model, its absolute photorealistic aesthetic ceiling might be slightly lower than the specialized 4.5 model. [Routing] Use this model by default when the user needs real-time information, deep reasoning, or complex intent understanding in their image.

POST /bytedance/seedream-5.0-lite

cURL

basic

curl --request POST \
  --url https://api.modellix.ai/api/v1/bytedance/seedream-5.0-lite \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "A cinematic sunset over a futuristic city skyline"
}
'

200

{
  "code": 0,
  "message": "success",
  "data": {
    "status": "pending",
    "task_id": "task-seedream50lite001",
    "model_id": "bytedance/seedream-5.0-lite",
    "get_result": {
      "method": "GET",
      "url": "https://api.modellix.ai/api/v1/tasks/task-seedream50lite001"
    }
  }
}

Authorizations

Authorization · string · header · required

API Key authentication. Format: Bearer YOUR_API_KEY.

Body

application/json

prompt · string · required

Image description text, supports Chinese and English. Maximum 10000 characters. We recommend keeping the prompt under 600 words. Excessively long prompts may scatter information, causing the model to overlook details and focus only on major elements, which can result in missing details in the generated image.

Required string length: 1 - 10000

Example:

"A futuristic city at sunset, ultra detailed"

size · string · default: 2048x2048

Image size in format 'widthxheight'. Seedream 5.0 Lite supports custom 2K/3K resolutions.

Example:

"3072x3072"

sequential_image_generation · enum<string> · default: disabled

Batch generation mode. 'auto': model-controlled batch generation, 'disabled': generate single image only.

Available options: auto, disabled

Example:

"auto"

sequential_image_generation_max_images · integer · default: 5

Maximum number of images for batch generation. This value is an upper limit, actual generated count may be less.

Required range: 1 <= x <= 15

Example:

3

optimize_prompt_mode · enum<string> · default: standard

Prompt optimization mode. Only 'standard' mode is supported.

Available options: standard

Example:

"standard"

output_format · enum<string> · default: jpeg

Output image format. Supported values: 'jpeg' and 'png'.

Available options: jpeg, png

Example:

"png"

Response

200

application/json

Task submitted successfully

code · integer · required

Response code, 0 indicates success

Example:

0

message · string · required

Response message

Example:

"success"

data · object · required

Detailed data about the submitted asynchronous task.

Show child attributes