ACE-workflow

🧠 ACE-Step Model Resources

🎨 ComfyUI Integration (FP16)

Place the single, combined checkpoint (including CLIP & VAE) in your checkpoints/ folder under ComfyUI/models:

📂 ComfyUI/
└── 📂 models/
    └── 📂 checkpoints/
        └── ace_step_v1_3.5b.safetensors

Download the checkpoint here: ace_step_v1_3.5b.safetensors

Try ACE-Step interactively in your browser:

🔗 Hugging Face Space – ACE-Step

ACE-Step is a novel open-source foundation model for music generation that overcomes key limitations of existing approaches through a holistic architectural design. It integrates diffusion-based generation with Sana's Deep Compression AutoEncoder (DCAE) and a lightweight linear transformer, achieving state-of-the-art performance in generation speed, musical coherence, and controllability.

Key Features:

• 15× faster than LLM-based baselines (20 s for 4‑minute music on A100)

• Superior musical coherence across melody, harmony, and rhythm

• Full‑song generation, duration control, and accepts natural language descriptions

Uses

Direct Use:

• Generating original music from text descriptions

• Music remixing and style transfer

• Editing song lyrics

Downstream Use: The model serves as a foundation for:

• Voice cloning applications

• Specialized music generation (rap, jazz, etc.)

• Music production tools

• Creative AI assistants

Out‑of‑Scope Use:

• Generating copyrighted content without permission

• Creating harmful or offensive content

• Misrepresenting AI‑generated music as human‑created

🔗 More details & source checkpoint