Ace-Tep: The Free AI Music Generator Changing Everything

I’ve closely followed the rise of AI music generation—especially as it complements our work in visual AI. When Stepfun AI and Ace Studio launched Ace-Tep, I immediately saw its potential. This fully open-source, Apache 2.0–licensed music model is a game-changer for anyone working with creative AI.

A Closer Look at Ace-Tep’s Capabilities 🧠

Ace-Tep is a 3.5B parameter model capable of generating 4-minute songs in ~20 seconds on an A100 GPU. In my hands-on experience, it rivals the output of Suno AI, Udio AI, and Refusion—but with one key difference: it’s completely open source.

Key features include:

• 🎤 Lyric generation + vocal synthesis
• 🌍 Support for 19 languages (especially strong in English, Chinese, and Russian)
• 🎻 Multiple genres and instruments
• 🧩 Audio inpainting for precise edits
• ✏️ Editable lyrics using flowchart-based workflows
• 🧱 Lora adapters for lyrics-to-vocal and text-to-sample workflows

This combination makes Ace-Tep one of the most versatile and customizable music generation models currently available.

Running Ace-Tep: From Cloud to Local ⚙️

Ace-Tep can be tested via a free Hugging Face demo, but serious users will want to run it locally.

💻 Hardware requirements (approx. 20GB VRAM recommended):

• NVIDIA 3090 → ~5 seconds per minute of audio
• NVIDIA 4090 → ~2 seconds per minute
• Apple M2 Max → Functional, but slow

Despite these demands, it’s impressively fast—generating entire tracks in under 30 seconds on top-tier consumer GPUs.

🌟 As open-source adoption grows, we expect simplified one-click installers and cloud-hybrid options to appear soon.

🎼 Why Ace-Tep Matters to Creative AI

At Promptus, we’re excited about Ace-Tep’s potential to blend audio and visual AI workflows. It fits right into our Cosyflows system, where users orchestrate multimedia workflows with drag-and-drop simplicity.

Coming soon from the developers:

• 🎤 Rap Machine — fine-tuned for high-flow lyricism
• 🎚️ Stem Gem — export individual instrument stems
• 🎶 Singing to Accompaniment — turn vocals into full backing tracks

💡 For creators, this means original soundtracks for videos, adaptive music for games, or collaborative inspiration for musicians—all within one creative pipeline.

My Hands-On Take 🎧

After spending hours with Ace-Tep, here’s what stood out:

✅ Melodic and country genres sound great
🛠️ Advanced settings allow deep customization (inference steps, guidance scale, etc.)
🔁 You can regenerate specific sections or extend compositions organically
📥 Upload and modify existing audio files—a rare feature in commercial tools

It’s not perfect yet (rap delivery needs refinement), but future fine-tunes are already in the works.

Looking Ahead: A New Era of AI Music Creation 🔮

As we expand Promptus Studio to cover more aspects of creative work, tools like Ace-Tep represent the next frontier: open, powerful, and creator-first.

✅ No API fees
✅ No usage limits
✅ Full creative control

Whether you’re using Promptus Web or Promptus App, you’ll soon be able to plug in audio generation to your no-code AI workflow.

Explore the Future of Creativity 🚀

Ready to experience what’s possible when music and visual AI come together?

👉 Visit promptus.ai to get started.

Ace-Tep’s emergence is a powerful reminder that open-source AI is not just catching up—it’s leading. And at Promptus, we’re building the bridge between your imagination and tools that can finally keep up.

Let’s create something unforgettable.