ACE-Step Next-Gen Music Generation Foundation Model

Bridging the gap between lightning-fast generation, unparalleled musical coherence, and deep creative control. Generate studio-quality music up to 4 minutes in as little as 20 seconds. Master your sound with advanced control over lyrics, melody, and style.

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Why Ace-Step is Revolutionizing AI Music Creation

From Prompt to Production in Seconds

Synthesize complete tracks up to 4 minutes in a mere 20 seconds on an A100 GPU—an astounding 15× speed advantage over conventional LLM-based models. Maximize your creative flow, minimize waiting.

Experience Harmony, Rhythm, and Melody as One

Ace-Step delivers exceptional long-range structural consistency. Enjoy music that feels complete, with natural progressions and a cohesive sound that surpasses standard diffusion and LLM approaches.

Your Music, Your Vision, Precisely Executed

Go beyond basic prompts. With Ace-Step, effortlessly edit lyrics, repaint specific sections, generate nuanced variations, and fine-tune musical parameters to perfectly match your artistic intent.

Seamless Multi-Modal Alignment

Our architecture ensures that lyrics, vocals (if applicable via extensions/LoRAs), and instrumental accompaniment align seamlessly, creating richer, more expressive, and complete musical pieces.

Truly Open & Extensible

Ace-Step is an open-source foundation. We empower you to easily fine-tune, extend, or integrate Ace-Step into your unique creative workflows and innovative applications.

Your Creations, Your IP

We prioritize your data privacy and security. The music you create is yours. Focus on your art, knowing your intellectual property is respected.

Unleash Creative Potential: Diverse Applications of ACE-Step

ACE-Step empowers a new wave of AI-driven audio and music applications, from instant vocal tracks to complex instrumental arrangements.

Lyric2Vocal: AI Vocals That Resonate

Transform written lyrics into expressive and natural-sounding vocal performances. Ideal for demos, backing vocals, or exploring lyrical ideas with AI-generated voices.

Text2Sample: Instant Loops & Sonic Textures

Generate unique musical samples, loops, and sound effects from simple text prompts. Perfect for kickstarting ideas or finding that missing piece for your production.

Singing2Accompaniment: Your Voice, Elevated

Upload your vocal recordings and let ACE-Step generate perfectly matched instrumental accompaniments in your desired style. Effortless backing tracks for singers and songwriters.

RapMachine: AI Beat & Flow Generation

Craft intricate rap beats and explore AI-generated lyrical flows. A powerful tool for hip-hop producers and artists pushing creative boundaries.

StemGen: Isolate & Craft Instrument Stems

Automatically separate existing tracks into individual instrument stems (drums, bass, vocals, etc.) or generate new stems to complement your projects. Unprecedented control for remixing and production.

The ACE-Step Engine: Your Idea to Sonic Reality

Discover the streamlined process behind ACE-Step, designed for speed, coherence, and unparalleled creative control in AI music generation.

1. Define Your Vision

Start with a text prompt, upload a melody, specify lyrics, or choose a genre. ACE-Step accepts diverse inputs to kickstart your musical journey.

2. ACE-Step AI Synthesis

Our advanced foundation model interprets your input, leveraging its unique architecture to rapidly generate a musically coherent and structured piece.

3. Experience Full Tracks

Listen as ACE-Step composes complete musical pieces up to 4 minutes, ensuring harmonic richness, rhythmic integrity, and melodic flow throughout.

4. Master Your Sound

Utilize intuitive controls to edit lyrics, repaint sections, generate variations, or fine-tune parameters. Your music, precisely your way.

Frequently Asked Questions

Find quick answers to common questions about ACE-Step, its capabilities, and how to get started.

What is ACE-Step?

ACE-Step is a state-of-the-art open-source music generation foundation model. It's designed for fast, controllable, and musically coherent AI music creation, capable of generating high-quality audio up to 4 minutes long from various inputs like text prompts, melodies, or lyrics.

How fast can ACE-Step generate music?

ACE-Step is exceptionally fast. It can synthesize a complete musical track of up to 4 minutes in as little as 20 seconds on an A100 GPU, offering a significant speed advantage over many existing AI music generation models.

What kind of control do I have over the music generation?

ACE-Step provides deep controllability. You can guide the generation with text prompts, input melodies, define lyrical content, and make fine-tuned adjustments to musical parameters. Advanced features also allow for editing specific sections and generating variations to match your artistic vision.

Is ACE-Step open source?

Yes, ACE-Step is an open-source foundation model. This allows developers and researchers to build upon it, fine-tune it for specific needs, and integrate it into various creative applications and workflows.

Can I use the music generated by ACE-Step commercially?

The licensing for music generated by ACE-Step depends on the specific implementation and any additional datasets or models used. As a foundational open-source model, the core technology is permissive. However, always check the specific terms of use for any service or platform providing access to ACE-Step. We advocate for creator ownership where possible.

Try ACE-Step Live

Interact with the ACE-Step demo directly below. Please note, the demo might take a moment to load.