ACE Studio
ACE-Step
Open-weight songs from genre tags and lyrics, priced by the second. On Leap, it sits beside 130 other models in one studio.
- Music
- Up to 240 s
- Start free, no card
- Every top model, one account
- Pay per run, priced before it starts
- 01Write the words, pick a voice
- 02See the exact price, then press go
- 03Keep it in your library, or take it further
Start with an idea
Three ways to try ACE-Step
Questions
ACE-Step on Leap, answered.
- Is this the real ACE-Step?
- Yes. Leap sends your request to ACE Studio's model through its provider and gives you back what it makes. Switch to any other model in the same studio when an idea needs it.
- What does it cost?
- In dollars, per run: the provider's list price plus 10%. You see the exact price before every run, a run that fails costs nothing, and there is no subscription. Every model's price is on the pricing page.
- Do I need a ACE Studio account?
- No. One Leap account and one balance run ACE-Step and every other model, in the studio, through the API and from your agents.
- What happens to what I make?
- It stays in your library while your account is active, ready to use anywhere.
Your idea, ACE-Step.
Start free, no card. Every run shows its price before it starts.
Make it with ACE-StepFor developers
Run ACE-Step from code
- Model ID
- ace-step/ace-step
- Makes
- Voice and sound
- Pricing
- Per run, quoted first: POST /v1/quotes
Inputs
What the model takes. Leave out anything with a default.
Promptprompt
Text, up to 4,000 characters, required
Durationduration
5 to 240, required. Default: 60 s
Lyricssettings.lyrics
Text, up to 4,000 charactersLyrics to be sung in the audio.
Number Of Stepssettings.number_of_steps
3 to 60. Default: 27Number of steps to generate the audio.
Schedulersettings.scheduler
Euler, Heun. Default: EulerScheduler to use for the generation process.
Guidance Typesettings.guidance_type
Cfg, Apg, Cfg star. Default: ApgType of CFG to use for the generation process.
Granularity Scalesettings.granularity_scale
-100 to 100. Default: 10Granularity scale for the generation process.
Guidance Intervalsettings.guidance_interval
0 to 1. Default: 0.5Guidance interval for the generation.
Guidance Interval Decaysettings.guidance_interval_decay
0 to 1. Default: 0Guidance interval decay for the generation.
Guidance Scalesettings.guidance_scale
0 to 200. Default: 15Guidance scale for the generation.
Minimum Guidance Scalesettings.minimum_guidance_scale
0 to 200. Default: 3Minimum guidance scale for the generation after the decay.
Tag Guidance Scalesettings.tag_guidance_scale
0 to 10. Default: 5Tag guidance scale for the generation.
Lyric Guidance Scalesettings.lyric_guidance_scale
0 to 10. Default: 1.5Lyric guidance scale for the generation.
Seedseed
0 to 4294967295The same seed and input give the same image.
The request
The same envelope for every model; only the model and its input change. With prefer: wait=60 the answer holds the result. Agents can call it through the MCP server at mcp.tryleap.ai.
curl https://api.tryleap.ai/v1/generations \ -H "x-api-key: $LEAP_API_KEY" \ -H "content-type: application/json" \ -H "prefer: wait=60" \ -d '{ "model": "ace-step/ace-step", "input": { "prompt": "A paper boat drifting down a rainy street at dusk" } }'