Model Upgrade: V5 Is Now Free & Introducing V5.5 Signature

Why We Upgraded

Over the past few weeks, we received consistent feedback about pronunciation accuracy — particularly for non-English lyrics. We take that seriously.

Rather than a targeted patch, we used this as an opportunity to do a full model upgrade across the board. Here's what changed.

What's New

V5 Studio Is Now Free for Everyone

The v5 Studio model was previously exclusive to paid members. Starting today, it's free for all users.

V5 delivers noticeably more natural vocals, cleaner separation between voice and instrumentation, and better handling of stylistic nuance. If you've been on the free plan, you'll immediately notice the difference.

Introducing V5.5 Signature (Members Only)

V5.5 Signature is our new flagship model, built for users who want the highest level of output quality.

Key improvements over V5:

• Persona support — shape the vocal character and style to match your creative vision
• Improved pronunciation — more accurate across English, Japanese, Chinese, and other languages
• Richer texture — better dynamic range and harmonic detail in full arrangements

V5.5 Signature is a member-only model available on eligible paid plans.

Basic Models Retired

The original Prime and Core models have been officially retired. They served as the foundation when we launched, but V5's quality now far exceeds what they could offer.

If your saved presets referenced these models, they'll automatically fall back to V5.

Try It Now

Open the music generator and select your model from the dropdown. V5 is the new default — you don't need to do anything to start using it.

If you're on a paid plan, V5.5 Signature is ready for you to explore.