Stable Audio 3.0 Day-0 Support in ComfyUI：From Sound Effects to Longer, More Musical Tracks
From sound effects to longer, more musical audio
We’re excited to share that Stable Audio 3.0—Stability AI’s new family of music models built for artistic experimentation—is coming to ComfyUI. Trained on fully licensed data, these models bring variable-length generation, on-device-friendly small checkpoints, and stronger musicality for longer structure—so you can go from quick SFX to extended tracks inside the workflows you already use.
Model highlights
Licensed for commercial use — trained on fully licensed music data.
Flexible clip length — from quick SFX and short loops to longer tracks (up to about two minutes on Small, six minutes on Medium).
Lightweight, small models — run SFX and short music on a CPU, no big GPU required.
Medium for longer music — fuller tracks with stronger structure when you have a GPU.
Available Models
Small-SFX: Sound effects and short ambiance, up to 2:00,
Small-Music: Short music and on-device-friendly loops, up to 2:00
Medium: Longer tracks with stronger structure and musicality, up to ~6:20
Small reaches two minutes (vs. 11s / 47s on Stable Audio Open). Medium goes beyond six minutes when you need length.
🤗 Comfy-Org/stable-audio-3 (for ComfyUI)
Examples
Music
A short idea for a complete piece (genre, instruments, mood, length).
Lo-fi hip-hop chill track with mellow electric piano, soft vinyl crackle, subtle synth pads, low-pass filtered drums, percussion loops, and soft plucked bass for a relaxed, dreamy vibe. BPM: 75. Length: 150 secondsSynthwave 80s retro track with arpeggiated synth leads, analog pads, electric bass, punchy electronic drums, gated reverb snares, and atmospheric FX for nostalgic and vibrant energy. BPM: 110. Length: 180 secondsInstrument
Single-instrument or small-group clips for production and scoring.
Guitar muted strum loop with tight rhythmic feel. BPM: 100. Length: 8 secondsPluck sequence loop with bright resonant tone. BPM: 128. Length: 10 seconds Sound effects and ambience
Impacts, textures, environments, and motion sounds for pictures and games.
Footsteps on gravel, steady walking pace, close perspective. Length: 8 secondsCar speeding past at high velocity, doppler effect, realistic whoosh. Length: 3 secondsOne-shot
Brief isolated sounds for drums, UI, transitions, and sample libraries.
Bass pluck with jazzy tone and resonant wooden body. Length: 3 secondsLatin drums, dynamic Latin drums and percussion ensemble featuring authentic rhythmic patterns. Length: 3 seconds
Get started
Update ComfyUI to v0.22.0 or go to Comfy Cloud
Go to the left sidebar → Template → Audio category → Choose Stable Audio 3.0 Template
For local users, please follow the note in the workflow to download the models and place them in the correct directory
Write a prompt, set the duration in seconds, then hit run.
As always, enjoy creating!
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