Mureka V9 API

Mureka V9 is the March 2026 song model from Mureka, part of Kunlun Tech's Skywork AI. It generates full songs from your lyrics, which are required and can run to 3,000 characters, plus an optional style prompt of up to 1,024 characters. Each request returns one song as an audio file. Mureka also offers several songs per request, WAV or FLAC output and reference, vocal and melody IDs, but Jantaris does not expose those options yet. On Jantaris it is the model to use for songs with sung lyrics.

Best for

• Jingles and brand songs with your own words
• Demos for songwriters testing a lyric idea
• Soundtracks and intros for social videos and podcasts
• Songs to pair with Music Video 1.0

Prompting tips

• Mark sections in the lyrics with tags such as [Verse], [Chorus], [Bridge] and [Outro] so the arrangement follows your structure.
• Build the style prompt from concrete parts: genre, mood, tempo, vocal type, core instruments ("female vocal, 90 BPM, lo-fi hip hop, warm Rhodes").
• Short, singable lines with similar syllable counts are easier to fit to a melody.
• Send the same lyrics two or three times with small style changes and pick the best take.

FAQ

How much does the Mureka V9 API cost?

Mureka V9 costs $0.124 per song. The estimate appears before you submit, and failed generations are not charged.

How long can the lyrics be?

Up to 3,000 characters, with a separate style prompt of up to 1,024 characters.

Can I use Mureka V9 songs commercially?

Outputs are yours as far as the law and Mureka's terms allow. Read those terms before releasing songs on streaming platforms.

How does Mureka V9 compare with Suno?

Suno runs in its own app with a free tier and paid subscriptions, and has no public API, while Mureka V9 on Jantaris is billed per song from a balance that never expires. The comparison and code samples are in Suno alternative with an API, and the full workflow from lyrics to finished track is in the Mureka V9 AI music API guide. Ready-made lyrics for a personal gift are in AI birthday song with a name.

How to call Mureka V9 via API

curl https://jantaris.com/v1/generate?wait=60 \
  -H "Authorization: Bearer $JANTARIS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "mureka-v9",
  "input": {
    "prompt": "Warm indie pop, female vocal, acoustic guitar and soft drums",
    "lyrics": "[Verse]\nCity lights are fading slow\n[Chorus]\nStay a little longer"
  }
}'

import os, time, requests

API = "https://jantaris.com/v1"
H = {"Authorization": f"Bearer {os.environ['JANTARIS_API_KEY']}"}

task = requests.post(f"{API}/generate", headers=H, json={
    "model": "mureka-v9",
    "input": {
        "prompt": "Warm indie pop, female vocal, acoustic guitar and soft drums",
        "lyrics": "[Verse]\nCity lights are fading slow\n[Chorus]\nStay a little longer"
    }
}).json()
while task["status"] in ("queued", "running"):
    time.sleep(3)
    task = requests.get(f"{API}/tasks/{task['id']}", headers=H).json()

print(task["status"], task["cost"], [o["url"] for o in task["output"]])

const API = "https://jantaris.com/v1";
const headers = { Authorization: `Bearer ${process.env.JANTARIS_API_KEY}`, "Content-Type": "application/json" };

let task = await (await fetch(`${API}/generate`, {
  method: "POST",
  headers,
  body: JSON.stringify({
    "model": "mureka-v9",
    "input": {
      "prompt": "Warm indie pop, female vocal, acoustic guitar and soft drums",
      "lyrics": "[Verse]\nCity lights are fading slow\n[Chorus]\nStay a little longer"
    }
  }),
})).json();

while (task.status === "queued" || task.status === "running") {
  await new Promise((r) => setTimeout(r, 3000));
  task = await (await fetch(`${API}/tasks/${task.id}`, { headers })).json();
}
console.log(task.status, task.cost, task.output.map((o) => o.url));

Parameters

The same schema is available from GET /v1/models/mureka-v9.