Academia

This page is auto-generated from model configurations. Last updated: 2026-08-18.

This reference lists all available Academia audio generation models and their parameters. Use these parameter names when calling the Generation API.

• ACE-Step 1.5 Edit Add Layer
• ACE-Step 1.5 Edit Complete Track
• ACE-Step 1.5 Edit Stem Extract
• ACE-Step 1.5 Quality Cover
• ACE-Step 1.5 Quality Repaint
• ACE-Step 1.5 Quality Text to Music
• ACE-Step 1.5 Turbo Cover
• ACE-Step 1.5 Turbo Repaint
• ACE-Step 1.5 Turbo Text to Music
• Lux TTS
• MM Audio 2 Text To Audio
• Tada 1B Text to Speech
• Tada 3B Text to Speech

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ACE-Step 1.5 Edit Add Layer

Add one instrument stem on top of existing audio, matched to key, tempo, and groove. Build arrangements layer by layer.

Model ID: model_ace-step-1-5-edit-add-layer

Capabilities: audio2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-edit-add-layer/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
srcAudio	file	Yes	-	-	-	-	The existing track to layer onto.
trackName	string	Yes	-	-	-	vocals, backing_vocals, drums, bass, guitar, keyboard, percussion, strings, synth, fx, brass, woodwinds	The stem to add on top of the source audio.
prompt	string	Yes	-	-	-	-	Describe the new stem, e.g. “acoustic drum kit groove matching a fingerpicked folk guitar”.
repaintingStart	number	No	0	0	-	-	Where the new layer begins, in seconds.
repaintingEnd	number	No	-1	-1	-	-	Where the new layer ends, in seconds. Use -1 through to the end of the track.
thinking	boolean	No	true	-	-	-	Lets the model plan the layer first for tighter musical coherence. On by default.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
guidanceScale	number	No	7	1	15	-	How strictly the result follows the prompt. Applies on the XL base edit tier.

ACE-Step 1.5 Edit Complete Track

Build full accompaniment around a partial track. Turn a bare vocal or solo instrument into a full arrangement (Vocal2BGM).

Model ID: model_ace-step-1-5-edit-complete-track

Capabilities: audio2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-edit-complete-track/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
srcAudio	file	Yes	-	-	-	-	The partial track to complete, such as an a cappella vocal or solo guitar.
completeTrackClasses	string_array	Yes	drums,bass,guitar	-	-	vocals, backing_vocals, drums, bass, guitar, keyboard, percussion, strings, synth, fx, brass, woodwinds	Which stems to generate around the source, e.g. drums, bass, and guitar.
prompt	string	Yes	-	-	-	-	Overall style for the accompaniment, e.g. “rock style completion” or “warm lo-fi backing”.
thinking	boolean	No	true	-	-	-	Lets the model plan the arrangement first for tighter musical coherence. On by default.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
guidanceScale	number	No	7	1	15	-	How strictly the result follows the prompt. Applies on the XL base edit tier.

ACE-Step 1.5 Edit Stem Extract

Isolate a stem from a mixed track: vocals, drums, bass, guitar, and more. Uses the full-quality edit model with 50 diffusion steps.

Model ID: model_ace-step-1-5-edit-stem-extract

Capabilities: audio2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-edit-stem-extract/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
srcAudio	file	Yes	-	-	-	-	The mixed track to separate.
trackName	string	Yes	-	-	-	vocals, backing_vocals, drums, bass, guitar, keyboard, percussion, strings, synth, fx, brass, woodwinds	The stem to isolate from the mix.
prompt	string	No	-	-	-	-	Optional hint about the stem character, e.g. “female pop vocals”.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
guidanceScale	number	No	7	1	15	-	How strictly the result follows the prompt. Applies on the XL base edit tier.

ACE-Step 1.5 Quality Cover

Higher-fidelity cover and restyle. Preserve melody while changing genre, vocals, and arrangement, or borrow style from a reference audio.

Model ID: model_ace-step-1-5-quality-cover

Capabilities: audio2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-quality-cover/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
srcAudio	file	Yes	-	-	-	-	The song you want to cover or restyle.
referenceAudio	file	No	-	-	-	-	An optional track whose style you want to borrow: its genre, mood, and feel guide the result.
prompt	string	No	-	-	-	-	Describe the style you want: genre, mood, instruments, vocal character, and production. For example, “acoustic folk, warm and mellow, female vocals.”
lyrics	string	No	-	-	-	-	Optional new or changed lyrics. Use section tags like [Verse] and [Chorus] to mark structure.
audioCoverStrength	number	No	1	0	1	-	How closely the result follows the original song. Higher values stay faithful to the source; use low values (around 0.2) when you mainly want to borrow a style.
instrumental	boolean	No	false	-	-	-	Creates a version without vocals.
vocalLanguage	string	No	unknown	-	-	ar, az, bg, bn, ca, cs, da, de, el, en, es, fa, fi, fr, he, hi, hr, ht, hu, id, is, it, ja, ko, la, lt, ms, ne, nl, no, pa, pl, pt, ro, ru, sa, sk, sr, sv, sw, ta, te, th, tl, tr, uk, ur, vi, yue, zh, unknown	The language for the vocals. Leave as Auto to detect it automatically.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
thinking	boolean	No	true	-	-	-	Lets the model plan the track first, which improves how closely it follows your prompt. On by default.

ACE-Step 1.5 Quality Repaint

Higher-fidelity region regeneration. Replace a section of an existing track guided by prompt and lyrics.

Model ID: model_ace-step-1-5-quality-repaint

Capabilities: audio2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-quality-repaint/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
srcAudio	file	Yes	-	-	-	-	The track that contains the section you want to regenerate.
prompt	string	No	-	-	-	-	Describe the music for the new section: genre, mood, instruments, and tempo.
lyrics	string	No	-	-	-	-	Optional lyrics for the new section. Use section tags like [Verse] and [Chorus] to mark structure.
repaintingStart	number	No	0	0	-	-	Where the section to regenerate begins, in seconds.
repaintingEnd	number	No	-1	-1	-	-	Where the section to regenerate ends, in seconds. Use -1 to regenerate through to the end of the track.
instrumental	boolean	No	false	-	-	-	Regenerates the section without vocals.
vocalLanguage	string	No	unknown	-	-	ar, az, bg, bn, ca, cs, da, de, el, en, es, fa, fi, fr, he, hi, hr, ht, hu, id, is, it, ja, ko, la, lt, ms, ne, nl, no, pa, pl, pt, ro, ru, sa, sk, sr, sv, sw, ta, te, th, tl, tr, uk, ur, vi, yue, zh, unknown	The language for the vocals. Leave as Auto to detect it automatically.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
thinking	boolean	No	true	-	-	-	Lets the model plan the section first, which improves how closely it follows your prompt. On by default.

ACE-Step 1.5 Quality Text to Music

Higher-fidelity music generation with a 4B model and stronger planner. Lyrics, vocals, and structure tags; full tracks up to 10 minutes.

Model ID: model_ace-step-1-5-quality-text-to-music

Capabilities: txt2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-quality-text-to-music/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	No	-	-	-	-	Describe the music you want: genre, mood, instruments, and tempo. Either a prompt or lyrics is required.
lyrics	string	No	-	-	-	-	The lyrics to sing, with optional section tags like [Verse] and [Chorus]. Leave empty and turn on Instrumental for music without vocals. Either lyrics or a prompt is required.
instrumental	boolean	No	false	-	-	-	Creates music without vocals.
vocalLanguage	string	No	unknown	-	-	ar, az, bg, bn, ca, cs, da, de, el, en, es, fa, fi, fr, he, hi, hr, ht, hu, id, is, it, ja, ko, la, lt, ms, ne, nl, no, pa, pl, pt, ro, ru, sa, sk, sr, sv, sw, ta, te, th, tl, tr, uk, ur, vi, yue, zh, unknown	The language for the vocals. Leave as Auto to detect it automatically.
duration	number	No	-	10	600	-	How long the track should be, in seconds (10-600). Leave empty to let the model decide. Longer tracks cost more.
bpm	number	No	-	30	300	-	The tempo, in beats per minute. Leave empty to let the model choose.
keyscale	string	No	-	-	-	-	The musical key, such as “C Major” or “Am.” Leave empty to let the model choose.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
thinking	boolean	No	true	-	-	-	Lets the model plan the track first, which improves how closely it follows your prompt. On by default.

ACE-Step 1.5 Turbo Cover

Re-render or restyle an existing track with ACE-Step 1.5 turbo. Preserve melody while changing genre, vocals, and arrangement, or use a reference audio for style transfer.

Model ID: model_ace-step-1-5-turbo-cover

Capabilities: audio2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-turbo-cover/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
srcAudio	file	Yes	-	-	-	-	The song you want to cover or restyle.
referenceAudio	file	No	-	-	-	-	An optional track whose style you want to borrow: its genre, mood, and feel guide the result.
prompt	string	No	-	-	-	-	Describe the style you want: genre, mood, instruments, vocal character, and production. For example, “acoustic folk, warm and mellow, female vocals.”
lyrics	string	No	-	-	-	-	Optional new or changed lyrics. Use section tags like [Verse] and [Chorus] to mark structure.
audioCoverStrength	number	No	1	0	1	-	How closely the result follows the original song. Higher values stay faithful to the source; use low values (around 0.2) when you mainly want to borrow a style.
instrumental	boolean	No	false	-	-	-	Creates a version without vocals.
vocalLanguage	string	No	unknown	-	-	ar, az, bg, bn, ca, cs, da, de, el, en, es, fa, fi, fr, he, hi, hr, ht, hu, id, is, it, ja, ko, la, lt, ms, ne, nl, no, pa, pl, pt, ro, ru, sa, sk, sr, sv, sw, ta, te, th, tl, tr, uk, ur, vi, yue, zh, unknown	The language for the vocals. Leave as Auto to detect it automatically.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
thinking	boolean	No	true	-	-	-	Lets the model plan the track first, which improves how closely it follows your prompt. On by default.

ACE-Step 1.5 Turbo Repaint

Regenerate a time region in an existing track with ACE-Step 1.5 turbo. Replace a verse, chorus, or section with new music guided by prompt and lyrics.

Model ID: model_ace-step-1-5-turbo-repaint

Capabilities: audio2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-turbo-repaint/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
srcAudio	file	Yes	-	-	-	-	The track that contains the section you want to regenerate.
prompt	string	No	-	-	-	-	Describe the music for the new section: genre, mood, instruments, and tempo.
lyrics	string	No	-	-	-	-	Optional lyrics for the new section. Use section tags like [Verse] and [Chorus] to mark structure.
repaintingStart	number	No	0	0	-	-	Where the section to regenerate begins, in seconds.
repaintingEnd	number	No	-1	-1	-	-	Where the section to regenerate ends, in seconds. Use -1 to regenerate through to the end of the track.
instrumental	boolean	No	false	-	-	-	Regenerates the section without vocals.
vocalLanguage	string	No	unknown	-	-	ar, az, bg, bn, ca, cs, da, de, el, en, es, fa, fi, fr, he, hi, hr, ht, hu, id, is, it, ja, ko, la, lt, ms, ne, nl, no, pa, pl, pt, ro, ru, sa, sk, sr, sv, sw, ta, te, th, tl, tr, uk, ur, vi, yue, zh, unknown	The language for the vocals. Leave as Auto to detect it automatically.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
audioFormat	string	No	mp3	-	-	mp3, wav, flac	The audio file type you get back.
thinking	boolean	No	true	-	-	-	Lets the model plan the section first, which improves how closely it follows your prompt. On by default.

ACE-Step 1.5 Turbo Text to Music

Open-source music generation with lyrics, vocals, and structure tags like [Verse] and [Chorus]. Full tracks up to 10 minutes with ACE-Step v1.5 turbo.

Model ID: model_ace-step-1-5-turbo-text-to-music

Capabilities: txt2audio

LLM Markdown: https://app.scenario.com/api/models/model_ace-step-1-5-turbo-text-to-music/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	No	-	-	-	-	Describe the music you want: genre, mood, instruments, and tempo. Either a prompt or lyrics is required.
lyrics	string	No	-	-	-	-	The lyrics to sing, with optional section tags like [Verse] and [Chorus]. Leave empty and turn on Instrumental for music without vocals. Either lyrics or a prompt is required.
instrumental	boolean	No	false	-	-	-	Creates music without vocals.
vocalLanguage	string	No	unknown	-	-	ar, az, bg, bn, ca, cs, da, de, el, en, es, fa, fi, fr, he, hi, hr, ht, hu, id, is, it, ja, ko, la, lt, ms, ne, nl, no, pa, pl, pt, ro, ru, sa, sk, sr, sv, sw, ta, te, th, tl, tr, uk, ur, vi, yue, zh, unknown	The language for the vocals. Leave as Auto to detect it automatically.
duration	number	No	-	10	600	-	How long the track should be, in seconds (10-600). Leave empty to let the model decide. Longer tracks cost more.
bpm	number	No	-	30	300	-	The tempo, in beats per minute. Leave empty to let the model choose.
keyscale	string	No	-	-	-	-	The musical key, such as “C Major” or “Am.” Leave empty to let the model choose.
numOutputs	number	No	1	1	4	-	How many audio variations to generate (1-4). More outputs cost more.
thinking	boolean	No	true	-	-	-	Lets the model plan the track first, which improves how closely it follows your prompt. On by default.

Lux TTS

High-quality voice cloning TTS at 48kHz from text and a reference audio clip.

Model ID: model_lux-tts

Capabilities: txt2audio

LLM Markdown: https://app.scenario.com/api/models/model_lux-tts/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Text to convert to speech.
audio	file	Yes	-	-	-	-	Reference audio for voice cloning.
guidanceScale	number	No	3	0	10	-	Higher values increase adherence to the reference voice.
numInferenceSteps	number	No	4	1	16	-	Number of flow-matching inference steps.
maxRefLength	number	No	5	1	15	-	Maximum reference audio duration used for voice encoding (seconds).
seed	number	No	-	0	2147483647	-	Seed for reproducible outputs.

MM Audio 2 Text To Audio

MMAudio generates synchronized audio given text inputs. It can generate sounds described by a prompt.

Model ID: model_mm-audio-2-t2a

Capabilities: txt2audio

LLM Markdown: https://app.scenario.com/api/models/model_mm-audio-2-t2a/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Text prompt for generated audio
negativePrompt	string	No	-	-	-	-	Negative prompt to avoid certain sounds
duration	number	No	8	1	30	-	Output duration in seconds.
numSteps	number	No	25	4	50	-	The number of steps to generate the audio for
cfgStrength	number	No	4.5	1	20	-	Higher values will keep output closer to the prompt
maskAwayClip	boolean	No	false	-	-	-	Mask away certain sounds in the audio
seed	number	No	-	0	65535	-	Random seed for reproducible generation

Tada 1B Text to Speech

Lighter Tada voice cloning text-to-speech variant with multilingual support.

Model ID: model_tada-1b-text-to-speech

Capabilities: txt2audio

LLM Markdown: https://app.scenario.com/api/models/model_tada-1b-text-to-speech/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
audio	file	Yes	-	-	-	-	Reference audio for voice cloning.
prompt	string	Yes	-	-	-	-	Text to synthesize with the reference voice.
transcript	string	No	-	-	-	-	Transcript of the reference audio. Required for non-English references.
language	string	No	en	-	-	en, ar, ch, de, es, fr, it, ja, pl, pt	Language used for text alignment.
numInferenceSteps	number	No	20	1	50	-	Number of ODE solver steps for acoustic generation.
speedUpFactor	number	No	1	0.5	2	-	Values > 1 speed up and values < 1 slow down speech.
temperature	number	No	0.6	0	2	-	Sampling temperature for text token generation.
topP	number	No	0.9	0	1	-	Top-p nucleus sampling value.
repetitionPenalty	number	No	1.1	1	2	-	Penalty applied to repeated tokens.
acousticCfgScale	number	No	1.6	0	10	-	Classifier-free guidance scale for acoustic generation.
noiseTemperature	number	No	0.9	0	2	-	Temperature for diffusion noise during flow matching.
numExtraSteps	number	No	0	0	50	-	Additional autoregressive steps for continuation.

Tada 3B Text to Speech

Voice cloning text-to-speech with multilingual alignment and expressive controls.

Model ID: model_tada-3b-text-to-speech

Capabilities: txt2audio

LLM Markdown: https://app.scenario.com/api/models/model_tada-3b-text-to-speech/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
audio	file	Yes	-	-	-	-	Reference audio for voice cloning.
prompt	string	Yes	-	-	-	-	Text to synthesize with the reference voice.
transcript	string	No	-	-	-	-	Transcript of the reference audio. Required for non-English references.
language	string	No	en	-	-	en, ar, ch, de, es, fr, it, ja, pl, pt	Language used for text alignment.
numInferenceSteps	number	No	20	1	50	-	Number of ODE solver steps for acoustic generation.
speedUpFactor	number	No	1	0.5	2	-	Values > 1 speed up and values < 1 slow down speech.
temperature	number	No	0.6	0	2	-	Sampling temperature for text token generation.
topP	number	No	0.9	0	1	-	Top-p nucleus sampling value.
repetitionPenalty	number	No	1.1	1	2	-	Penalty applied to repeated tokens.
acousticCfgScale	number	No	1.6	0	10	-	Classifier-free guidance scale for acoustic generation.
noiseTemperature	number	No	0.9	0	2	-	Temperature for diffusion noise during flow matching.
numExtraSteps	number	No	0	0	50	-	Additional autoregressive steps for continuation.