ace-step
๐ฏSkillfrom agentspace-so/runcomfy-agent-skills
|Generates, inpaints, and outpaints music using StepFun-AI's open-weights ACE Step model via the RunComfy CLI, with tag-driven composition, multilingual lyrics, and four endpoints at $0.0002-0.0003 per second of audio.
Overview
ACE Step is a Claude Code skill for generating, inpainting, and outpainting music using StepFun-AI's open-weights ACE Step model via the RunComfy CLI. It provides four endpoints: ACE Step text-to-audio and ACE Step 1.5 text-to-audio for generating music from tags and lyrics, ACE Step audio-inpaint for regenerating a time range inside an existing track, and ACE Step audio-outpaint for extending a track before or after. Output is stereo audio up to 4 minutes per call, at $0.0002-$0.0003 per second (approximately 27x cheaper than ElevenLabs Music).
Key Features
- Tag-driven composition - Generate music using genre, mood, instrument, and style tags combined with structured lyrics with section markers, producing coherent tracks from text input.
- Audio inpainting - Regenerate a specific time range inside an existing track with
ACE Step audio-inpaint, fixing a bad chorus or replacing a section without re-generating the entire song. - Audio outpainting - Extend an existing track before or after its current duration with
ACE Step audio-outpaint, lengthening a 30-second draft into a 2-minute cut or adding an intro/outro. - 50+ language vocals with ACE Step 1.5 - The 1.5 version supports vocals in 50+ languages with refined structured-lyric handling, at a slightly higher cost ($0.0003/s vs $0.0002/s for the base model).
Who is this for?
- Independent musicians and producers who need affordable AI music generation with edit capabilities (inpaint/outpaint) for iterating on compositions
- Game developers and content creators building music libraries at scale who need low-cost generation ($0.0002/s) with tag-driven style control
- Developers building music generation pipelines who need CLI-accessible text-to-audio, audio inpainting, and audio outpainting in a single tool
Same repository
agentspace-so/runcomfy-agent-skills(30 items)
Installation
npx vibeindex add agentspace-so/runcomfy-agent-skills --skill ace-stepnpx skills add agentspace-so/runcomfy-agent-skills --skill ace-step~/.claude/skills/ace-step/SKILL.mdSKILL.md
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