HOT-Step CPP scragnog/HOT-Step-CPP

Portable local music studio running ACE-Step 1.5, MiniMax-Music3 and YuE2 in one C++ engine, with covers, repaint, stems and adapter training.

Creator kit + Compare GitHub ↗ Install guide (official) ↗

HOT-Step CPP at a glance

Checked 15 Oct 2026

HOT-Step CPP is a browser-based desktop app built on acestep.cpp that runs three open song models (ACE-Step 1.5, MiniMax-Music3 and YuE2) and switches between them. It adds auto-generated songs, a lyrics studio, covers, repaint (ACE-Step only), stem separation, audio-to-MIDI and an experimental adapter trainer. Portable builds exist for Windows, Linux and macOS (Apple Silicon); the starter pack is about 9 GB. Code is MIT, but model licences differ: MiniMax-Music3 has its own community licence and YuE2 is non-commercial for companies. Under active development.

Cite this pageRepoQuarry. “HOT-Step CPP.” Checked 15 Oct 2026. https://repoquarry.dev/projects/hot-step-cpp

How much of Suno does it replace?

4 of 5 jobs. Songs, covers, repaint and stems in one app; repaint works with ACE-Step 1.5 only.

Full songs with vocals from a prompt or lyrics Partial replacement

Instrumental tracks (Instrumental mode) Not covered

Covers and restyles of an uploaded song (Cover) Partial replacement

Extending or regenerating part of a song (Extend Partial replacement

Splitting a song into vocal and instrument stems (Get Stems) Partial replacement

For instrumental tracks (Instrumental mode), see other Suno alternatives. You may also need to build an interface, an API server and hosting yourself.

Facts, with sources

Every answer links to where we found it. We read the documentation; we did not install it.

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QuestionAnswerSourceChecked

Runs on my machine? Yes, portable app served to your browser at localhost generated entirely on your own hardware with no cloud, API keys or subscription. github.com · HOT-Step-CPP#readme ↗ 1d ago

Code licence MIT github.com · LICENSE ↗ 1d ago

Model weights licence Varies by model; ACE-Step 1.5 MIT, MiniMax-Music3 Community License, YuE2 CC BY-NC 4.0 Weights under the MiniMax-Music3 Community License. github.com · HOT-Step-CPP#credits ↗ 1d ago

Commercial use Yes with ACE-Step 1.5 (MIT); MiniMax-Music3 requires attribution in commercial products, and YuE2 needs a licence for companies You shall prominently display “MiniMax-Music3” on the user interface of commercial product or service that uses the Software. huggingface.co · LICENSE ↗ 1d ago

Paid services needed? None required; the Lyric Studio can use outside LLM providers A lyrics workspace with artist profiles, several LLM providers, bulk generation github.com · HOT-Step-CPP#highlights ↗ 1d ago

Hardware Model packs from about 3 GB (YuE2 compact) to 24 GB; XL quality pack needs about 12 GB VRAM; CPU works but is much slower The registry states VRAM figures for only a few packs. github.com · getting-started.md ↗ 1d ago

Operating systems Windows x64, Linux x64 and macOS (Apple Silicon) portable releases Portable releases, no installation needed: extract and run. Node.js is bundled. github.com · HOT-Step-CPP#download ↗ 1d ago

Setup effort Easy; extract a portable release, run it, then download a model pack in the app Portable releases, no installation needed: extract and run. github.com · HOT-Step-CPP#quick-start ↗ 1d ago