ACE Step - Pro Pack on RunComfy

Tag-driven music generation, inpainting, and outpainting via StepFun-AI's ACE Step model.

- Four endpoints: text-to-audio (base and 1.5 variants with 50+ language support), audio-inpaint (regenerate time ranges), and audio-outpaint (extend before/after)

- Pricing $0.0002–0.0003 per second of audio, roughly 27× cheaper than ElevenLabs Music; supports 5–240 second generation per call

- Composition driven by comma-separated tags (genre, mood, instruments, BPM) with optional structured lyrics using section markers ([Verse], [Chorus], [Bridge])

- Invoked via runcomfy CLI; requires authentication and supports seed-based reproducibility

ACE Step - Pro Pack on RunComfy

Tag-driven music generation, inpainting, and outpainting with StepFun-AI's ACE Step open-weights model. Four CLI-reachable endpoints, $0.0002–0.0003 per second of audio, up to 4 minutes per call.

runcomfy.com · ACE Step base · ACE Step 1.5 · CLI docs

Install this skill

npx skills add agentspace-so/runcomfy-agent-skills --skill ace-step -g

Powered by the RunComfy CLI

Step 1 - install (one of, see the runcomfy-cli skill for details):