suno-custom-v4.5

POST

/openapi/v2/rhart-audio/suno-v4.5/custom

Input custom song title, lyrics, and style tags. The model generates two alternative song audios following the instructions. The core upgrade of v4.5 is extending the maximum song length to 8 minutes. Suitable for long-form narrative music, film scoring, and creative projects requiring extended duration. Cost-effective.

Request

Authorization

Header Params

Body Params application/jsonRequired

Example

{
    "title": "Light",
    "prompt": "[Verse] My heart had an early premonition, burning at the speed of light, completely unaware of the cliff before the mountain. Born fearless is youth, unaware that time is limited. [Pre-Chorus] Wanting to cry or laugh, I do so wholeheartedly, completely ignoring others' judgments, only fearing that a moment may go unfulfilled and lose important fragments.",
    "tags": "Popular,Chinese"
}

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/rhart-audio/suno-v4.5/custom' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Content-Type: application/json' \
--data-raw '{
    "title": "Light",
    "prompt": "[Verse] My heart had an early premonition, burning at the speed of light, completely unaware of the cliff before the mountain. Born fearless is youth, unaware that time is limited. [Pre-Chorus] Wanting to cry or laugh, I do so wholeheartedly, completely ignoring others'\'' judgments, only fearing that a moment may go unfulfilled and lose important fragments.",
    "tags": "Popular,Chinese"
}'

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 2026-04-27 12:00:02

suno-single-v4.5

suno-lyrics