> ## Documentation Index
> Fetch the complete documentation index at: https://docs.venice.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# ACE-Step 1.5 API

> ACE-Step 1.5 API on Venice: music generation, $0.03 per minute of audio. Anonymized access without your identity. Pricing, specs and code examples.

> [accordion] Plain-text specification
>
> ## ACE-Step 1.5 API
>
> ACE-Step 1.5 is a music generation model by ACE Studio, available on the Venice API as `ace-step-15`. Requests are anonymized, so the provider never sees your identity.
>
> Feature-rich song generation with optional lyrics and detailed musical controls.
>
> ### ACE-Step 1.5 API pricing
>
> | Model ID | Variant | Privacy | Price |
> | - | - | - | - |
> | `ace-step-15` | Standard | Anonymized | \$0.03 / min |
>
> ### ACE-Step 1.5 specifications
>
> | Spec | Value |
> | - | - |
> | Provider | ACE Studio |
> | Released | Feb 23, 2026 |
> | Privacy | Anonymized |
> | Status | Stable |
> | Open weights | Yes |
>
> ### How to use the ACE-Step 1.5 API
>
> Send requests to `POST https://api.venice.ai/api/v1/audio/queue` with `"model": "ace-step-15"` and your API key.
>
> ```bash theme={"system"}
> # 1. Queue the job
> curl https://api.venice.ai/api/v1/audio/queue \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{
>     "model": "ace-step-15",
>     "prompt": "Warm lo-fi hip hop beat with soft piano and vinyl crackle",
>     "duration_seconds": 30
>   }'
>
> # 2. Retrieve when ready
> curl https://api.venice.ai/api/v1/audio/retrieve \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{ "model": "ace-step-15", "queue_id": "<queue_id>" }' --output audio.mp3
> ```
>
> ### Related models
>
> * [MiniMax Music 2.0 API](https://docs.venice.ai/models/minimax-music-2-0.md): \$0.04 / track
> * [Lyria 3 Pro API](https://docs.venice.ai/models/lyria-3-pro.md): \$0.10 / track
> * [Stable Audio 2.5 API](https://docs.venice.ai/models/stable-audio-2-5.md): \$0.19 / track
> * [MiniMax Music 2.5 API](https://docs.venice.ai/models/minimax-music-2-5.md): \$0.18 / track


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