MODEL ID runware:ace-step@v1.5-xl-turbo
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ACE-Step v1.5 XL Turbo

ACE-Step v1.5 XL Turbo is the accelerated 4B DiT variant of ACE-Step 1.5. It is optimized for faster music generation with 8-step distilled inference while retaining the higher-capacity XL architecture. It supports text-to-music, cover generation, and repaint workflows, making it suitable for rapid iteration when the 2B turbo model is not enough in audio quality.

ACE-Step v1.5 XL Turbo
Text to Audio

Volcanic Foundry Gospel Breakbeat

0:00
{
  "taskType": "audioInference",
  "taskUUID": "9c0f9cfe-bb07-4a42-84d0-398035e44249",
  "model": "runware:ace-step@v1.5-xl-turbo",
  "positivePrompt": "A cinematic industrial gospel breakbeat track set around a volcanic foundry procession: deep frame drums, taiko-like impacts, distorted sub bass, hammered anvil percussion, low brass swells, gritty organ chords, and urgent call-and-response vocals. Build from sparse metallic pulses into a massive half-time chorus, with smoky ambience, ash-coated machinery, dramatic stops, and a triumphant final refrain. Polished mix, wide stereo image, heavy low end, emotional lead vocal.",
  "duration": 75,
  "seed": 90107,
  "steps": 8,
  "settings": {
    "bpm": 92,
    "keyScale": "D minor",
    "timeSignature": 4,
    "vocalLanguage": "en",
    "lyrics": "[Verse]\nSteel in the dark, sparks at our feet\nHands keep the rhythm, hearts keep the heat\nUnder the mountain, we answer the sound\nEvery old burden gets beaten down\n\n[Pre-Chorus]\nLift it higher, let the hammers ring\nOne more breath and the walls will sing\n\n[Chorus]\nWe rise from the fire, we rise from the stone\nNo chain can hold what the furnace has known\nStep to the drum, let the whole floor shake\nWe are the thunder the morning will wake\n\n[Bridge]\nAsh on our shoulders, gold in our lungs\nSay it together, the work is not done\n\n[Final Chorus]\nWe rise from the fire, we rise from the stone\nNo chain can hold what the furnace has known\nStep to the drum, let the whole floor shake\nWe are the thunder the morning will wake"
  }
}
{
  "taskType": "audioInference",
  "taskUUID": "9c0f9cfe-bb07-4a42-84d0-398035e44249",
  "audioUUID": "03c95930-5d61-4ef3-892e-51801f1e22c3",
  "audioURL": "https://am.runware.ai/audio/os/a07dlim3/ws/5/ai/03c95930-5d61-4ef3-892e-51801f1e22c3.mp3",
  "seed": 90107,
  "cost": 0.0009
}
Text to Audio

Ion Rail Yard Lullaby

0:00
{
  "taskType": "audioInference",
  "taskUUID": "5f4b7aa0-af96-4704-859b-6b6fa9dae2a6",
  "model": "runware:ace-step@v1.5-xl-turbo",
  "positivePrompt": "A high-energy cinematic electro-pop track set in a vast orbital rail depot: metallic wheel rhythms, deep sidechain bass, crisp trap hats, bowed koto accents, distant station announcements as texture, airy female lead vocal, stacked vocoder harmonies, tense verses opening into a soaring hook. Clean modern mix, wide stereo field, punchy drums, dramatic build, memorable chorus, futuristic but emotional.",
  "duration": 90,
  "seed": 33239,
  "steps": 8,
  "settings": {
    "bpm": 142,
    "keyScale": "D minor",
    "timeSignature": 6,
    "vocalLanguage": "en",
    "lyrics": "[Verse]\nSteel lines hum under my shoes\nNumbers blink in cobalt blue\nEvery gate calls out my name\nBut I keep moving through the flame\n\n[Pre-Chorus]\nIf the engines know the way\nLet them pull my doubt away\n\n[Chorus]\nCarry me past the last red sign\nThrough the sparks and the silver line\nI can hear tomorrow sing\nIn the wires above everything\n\n[Bridge]\nNo map, no chain, no final stop\nJust my pulse when the bass drops\n\n[Chorus]\nCarry me past the last red sign\nThrough the sparks and the silver line\nI can hear tomorrow sing\nIn the wires above everything"
  }
}
{
  "taskType": "audioInference",
  "taskUUID": "5f4b7aa0-af96-4704-859b-6b6fa9dae2a6",
  "audioUUID": "debb469e-b213-4333-b12e-9df56048ffe3",
  "audioURL": "https://am.runware.ai/audio/os/a02d21/ws/5/ai/debb469e-b213-4333-b12e-9df56048ffe3.mp3",
  "seed": 33239,
  "cost": 0.00195
}
Text to Audio

Magnetic Tundra Signal Choir

0:00
{
  "taskType": "audioInference",
  "taskUUID": "ffc26ff5-912b-46a5-829d-79e0569836ab",
  "model": "runware:ace-step@v1.5-xl-turbo",
  "positivePrompt": "Create a cinematic electro-acoustic track set in a remote polar relay station during a magnetic storm: deep frame drums, bowed metal, throat-singing bass drones, granular shortwave radio bursts, crystalline FM synth arpeggios, and a solemn mixed choir. Build from sparse icy pulses into a powerful 6/4 groove with call-and-response vocals, then resolve into warm analog pads and fading signal noise. High fidelity, wide stereo, dramatic but hopeful, with clear melodic hooks and strong low-end impact.",
  "duration": 75,
  "seed": 37144,
  "steps": 8,
  "settings": {
    "bpm": 118,
    "keyScale": "F# minor",
    "timeSignature": 6,
    "vocalLanguage": "en",
    "lyrics": "[Verse]\nUnder the white horizon line\nWe trace the signal through the wire\nA distant voice, a silver sign\nRising higher, rising higher\n\n[Pre-Chorus]\nIf the compass fails tonight\nWe will sing by pulse and tone\nEvery echo finds a light\nEvery wave can guide us home\n\n[Chorus]\nCall across the static field\nSend the code and let it fly\nAll we lost and all we feel\nBurns like color in the sky\n\n[Bridge]\nLow drum, cold air\nNames in the frequency\nHold on, stay near\nWe are not alone\n\n[Final Chorus]\nCall across the static field\nSend the code and let it fly\nAll we lost and all we feel\nBurns like color in the sky"
  }
}
{
  "taskType": "audioInference",
  "taskUUID": "ffc26ff5-912b-46a5-829d-79e0569836ab",
  "audioUUID": "ce98a2a8-1d80-4a07-891b-af769ee85359",
  "audioURL": "https://am.runware.ai/audio/os/a02d21/ws/5/ai/ce98a2a8-1d80-4a07-891b-af769ee85359.mp3",
  "seed": 37144,
  "cost": 0.0009
}
Text to Audio

Ceramic Satellite Monsoon Ballad

0:00
{
  "taskType": "audioInference",
  "taskUUID": "e02f1262-4a14-4ee6-af09-1a3006e8eeea",
  "model": "runware:ace-step@v1.5-xl-turbo",
  "positivePrompt": "A cinematic monsoon ballad set inside a silent ceramic satellite drifting above storm clouds. Begin with intimate music-box kalimba, soft sarangi bends, distant thunder-like taiko rolls, and warm sub bass. Build into a lush 6/8 trip-hop arrangement with brushed drums, handpan accents, airy granular synth pads, and a clear alto lead vocal. Mood: lonely, weightless, hopeful, elegant, rain-soaked, spacious. Production should feel modern and high fidelity, with a wide stereo field, delicate reverb tails, detailed percussion, and a memorable chorus melody. Avoid harsh distortion; keep the voice emotional and close.",
  "duration": 90,
  "seed": 14916,
  "steps": 8,
  "settings": {
    "bpm": 78,
    "keyScale": "D minor",
    "timeSignature": 6,
    "vocalLanguage": "en",
    "lyrics": "[Verse 1]\nPorcelain walls hum softly\nClouds fold under my feet\nI count the rain in circles\nWhere the blue transmissions sleep\n\n[Pre-Chorus]\nIf the signal starts to wander\nI will answer through the haze\nEvery drop becomes a number\nEvery number finds your name\n\n[Chorus]\nHold me in the weather\nHold me past the static line\nWe are small but still together\nIn the orbit of a sign\n\n[Verse 2]\nSilver rivers cross the windows\nGravity forgets my hands\nI send a song through water\nTo the roofs of distant lands\n\n[Bridge]\nNo map, no ground, no morning\nJust a pulse beneath the storm\nI hear your echo forming\nAnd it keeps my engine warm\n\n[Final Chorus]\nHold me in the weather\nHold me past the static line\nWe are small but still together\nIn the orbit of a sign"
  }
}
{
  "taskType": "audioInference",
  "taskUUID": "e02f1262-4a14-4ee6-af09-1a3006e8eeea",
  "audioUUID": "283446ee-f6b3-4566-bbd1-09fcf3825a62",
  "audioURL": "https://am.runware.ai/audio/os/a01d21/ws/5/ai/283446ee-f6b3-4566-bbd1-09fcf3825a62.mp3",
  "seed": 14916,
  "cost": 0.00195
}