Seedream 5.0 Lite t2i

Seedream 5.0 Lite t2i is ByteDance’s text-to-image workflow for single-image and coherent multi-image output. It improves prompt understanding, knowledge-rich visual generation, text rendering, and consistency across image sets. Use model ID seedream-5-0-lite-260128.

For specific content requests, select the Special-Ns resource group.

Key capabilities

Text-to-image — Generate images from natural-language prompts.
Batch image output — Generate coherent storyboards, comics, brand assets, or other related image sets.
Knowledge-rich visuals — Create diagrams, formulas, educational illustrations, and dense information graphics.

Text-to-image

cURL

curl https://www.anyfast.ai/v1/images/generations \
  -H "Authorization: Bearer <token>" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedream-5-0-lite-260128",
    "prompt": "A clean editorial poster explaining the water cycle, accurate labels, clear hierarchy, blue and green palette",
    "size": "2K",
    "output_format": "png",
    "response_format": "url",
    "watermark": false
  }'

Batch image output

Set sequential_image_generation to auto and use max_images to cap the number of images.

{
  "model": "seedream-5-0-lite-260128",
  "prompt": "Generate four coherent cinematic storyboard frames showing an astronaut repairing a spacecraft, encountering a meteor shower, escaping the impact, and returning safely",
  "size": "2K",
  "sequential_image_generation": "auto",
  "sequential_image_generation_options": {
    "max_images": 4
  },
  "output_format": "png",
  "response_format": "url",
  "watermark": false
}

Parameters

Parameter	Type	Required	Description
`model`	string	Yes	Must be `seedream-5-0-lite-260128`.
`prompt`	string	Yes	Text instruction for generation or editing.
`size`	string	No	Resolution tier `2K`, `3K`, or `4K`, or a supported explicit pixel size.
`seed`	integer	No	Random seed used to make repeated requests more consistent.
`sequential_image_generation`	string	No	`auto` enables batch image output; `disabled` returns one image.
`sequential_image_generation_options.max_images`	integer	No	Maximum images to return when batch output is enabled.
`response_format`	string	No	`url` or `b64_json`. Generated URLs expire after 24 hours.
`output_format`	string	No	`png` or `jpeg`.
`watermark`	boolean	No	Whether to add an AI-generated watermark.
`optimize_prompt_options.mode`	string	No	Prompt optimization mode. Seedream 5.0 Lite supports `standard`.

API Reference

Open the interactive Seedream 5.0 Lite t2i API reference.

Getting started

Model Introduction

Resources

Seedream 5.0 Lite t2i

Key capabilities

Text-to-image

Batch image output

Parameters

API Reference

​Key capabilities

​Text-to-image

​Batch image output

​Parameters

API Reference

Key capabilities

Text-to-image

Batch image output

Parameters