ACE-Step v1.5
Open full-track music generation with lyric editing, remix, cover generation, and voice cloning in 50+ languages.
ACE-Step v1.5 is a cloud music-generation model made by ACE Studio. It composes original music from a text description, and can rework an attached audio track. It can generate clips up to 5 minutes long. Output is available as MP3, WAV, FLAC, and OGG. It runs through Runware using your own API key, from about $0.0001 per second of output.
- Released
- Jan 2026
- Pricing
- $0.0001 per second
- Type
- Music generation
- Max length
- Up to 5 min
- Output formats
- MP3, WAV, FLAC, OGG
Samples
Generated with ACE-Step v1.5 via Runware: the same briefs given to every music model in the catalog, so the only thing that changes between two models’ clips is the model. The sung brief is only given to models that can sing.
Texture and restraint
Slow ambient piece for a rainy morning: warm analog pads, soft tape hiss, and a simple four-note piano motif repeating. No drums.
Arrangement and dynamic build
Cinematic orchestral build: low strings and a distant horn, tension rising over eight bars into a full brass swell with timpani.
Rhythm, groove, and low end
Downtempo electronic groove at 96 BPM: dusty breakbeat, deep sub bass, a filtered Rhodes chord stab, and light vinyl crackle.
Sung lyrics, diction, and melody
Upbeat indie pop song at 104 BPM with a warm female lead vocal, strummed acoustic guitar, hand claps, and a light kick drum.
[Verse] Window open wide and the kettle on Sunlight on the table where the night has gone [Chorus] Hold on to the morning, hold on to the light Sing it out together, everything feels right
ACE Studio
ACE Studio builds the open ACE-Step music models — full-track generation with lyric editing, remixing, and voice cloning in 50+ languages.
acestudio.ai ↗