seedream-v4.5/text-to-image

POST

/openapi/v2/seedream-v4.5/text-to-image

ByteDance’s premier high-resolution image generation model, refined through advanced architecture and large-scale training. It sets a new standard for typography and poster composition, rendering sharp, legible text for professional marketing layouts. The model excels in designer-level spatial hierarchy, ensuring clear placement of titles, logos, and body text. With superior prompt adherence and customizable output up to 4K resolution, Seedream 4.5 delivers exceptional aesthetic quality. It is an ideal solution for creators requiring high-fidelity branded visuals and complex, text-heavy creative designs.

Request

Authorization

Header Params

Body Params application/jsonRequired

Example

{
    "prompt": "A cinematic wuxia movie poster: a lone white-clad swordsman stands at the edge of a broken stone bridge under torrential night rain, back to the viewer, his long hair and robes whipping in the wind, blood dripping from his sword. Distant lightning illuminates silhouettes of pursuers against stormy mountains and a crumbling pagoda shrouded in mist. At the top center, the movie title “孤鸿” is rendered in bold, elegant golden Chinese calligraphy. Across the bottom third, a semi-transparent black bar contains crisp white credits in clean serif font: “导演：林无尘｜主演：沈青崖、白九娘｜摄影：江月明｜出品：江湖影业”. Perfect composition, no text overlapping the main figure, film-noir lighting, ultra-detailed, 2K",
    "width": 2048,
    "height": 2048,
    "sequentialImageGeneration": "disabled",
    "maxImages": 1
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://www.runninghub.ai/openapi/v2/seedream-v4.5/text-to-image' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Content-Type: application/json' \
--data-raw '{
    "prompt": "A cinematic wuxia movie poster: a lone white-clad swordsman stands at the edge of a broken stone bridge under torrential night rain, back to the viewer, his long hair and robes whipping in the wind, blood dripping from his sword. Distant lightning illuminates silhouettes of pursuers against stormy mountains and a crumbling pagoda shrouded in mist. At the top center, the movie title “孤鸿” is rendered in bold, elegant golden Chinese calligraphy. Across the bottom third, a semi-transparent black bar contains crisp white credits in clean serif font: “导演：林无尘｜主演：沈青崖、白九娘｜摄影：江月明｜出品：江湖影业”. Perfect composition, no text overlapping the main figure, film-noir lighting, ultra-detailed, 2K",
    "width": 2048,
    "height": 2048,
    "sequentialImageGeneration": "disabled",
    "maxImages": 1
}'

Responses

🟢200成功

application/json

Task result query endpoint: /openapi/v2/query

Body

Examples

Submit response exampleTask success response example

{
    "taskId": "2013508786110730241",
    "status": "RUNNING",
    "errorCode": "",
    "errorMessage": "",
    "results": null,
    "clientId": "f828b9af25161bc066ef152db7b29ccc",
    "promptTips": "{\"result\": true, \"error\": null, \"outputs_to_execute\": [\"4\"], \"node_errors\": {}}"
}

Modified at 2026-04-23 02:17:48

seedream-v4/text-to-image

seedream-v5-lite/text-to-image