> For the complete documentation index, see [llms.txt](https://docs.acestudio.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acestudio.ai/ai-vocal-synth/voice-library/vocal-synth-models.md). # Vocal Synth Models Explore the evolution and capabilities of ACE Studio's vocal synthesis models. ## Model Generation Evolution ACE Studio continuously iterates its vocal synthesis models. Building on state-of-the-art AI architectures, we incorporate proprietary innovations to enhance naturalness, expressiveness, multilingual accuracy, and voice cloning fidelity. We also responsibly expand our vocal datasets to cover more languages and musical styles. When architectural improvements and new training data meet our release criteria, we publish a new model generation.

Select Vocal Synth Models in ACE Studio.

## Model List Below is the current lineup of model generations and variants:

Model Name	Description	Language Support
Verse 2.7	Advanced vocal synth model with high performance and quality.	English, Spanish, Italian, French, Portuguese, Korean, Chinese, Japanese
Verse24	A vocal synth model enhanced with English and Spanish capabilities.	English, Spanish, Chinese, Japanese
Solo24	A vocal synth model expanded from Verse24, designed for voice cloning.	English, Chinese, Japanese
Verse23B	Enhanced based on the Verse23 model.	English, Chinese, Japanese
Solo_D	A vocal synth model expanded from Verse23, designed for voice cloning.	English, Chinese, Japanese
Solo23	A vocal synth model expanded from Verse23, designed for voice cloning.	English, Chinese, Japanese
Verse23	ACE Studio's first multilingual vocal synth model.	English, Chinese, Japanese

## Model Generations Throughout this documentation, vocal synth models are grouped into two generations. When a feature behaves differently between them, the page states which generation it applies to. * **V2 models**: Verse 2.x, currently Verse 2.7. They use Vocal Controls in the AI parameters panel. * **V1 models**: Verse24, Solo24, Verse23B, Solo\_D, Solo23, and Verse23. They use Emotion Controls. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.acestudio.ai/ai-vocal-synth/voice-library/vocal-synth-models.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.