> ## Documentation Index
> Fetch the complete documentation index at: https://wiz-myvocal.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# TTS Models & Migration

> Public model IDs, language behavior, and V2 to V3 migration guidance.

<Info>
  Use this page as the source of truth for publicly documented TTS model IDs.
</Info>

## Model overview

| Model ID          | Recommended usage                     | Languages                                                                       |
| ----------------- | ------------------------------------- | ------------------------------------------------------------------------------- |
| `myvocal_v3`      | Explicit V3 request path              | See the full list in [V3 Language Codes](/api-reference/tts/v3-language-codes). |
| `english_v2`      | V2 explicit English (original accent) | English (original accent).                                                      |
| `spanish_es`      | V2 explicit Spanish (ES)              | Spanish (ES).                                                                   |
| `portuguese_pt`   | V2 explicit Portuguese (PT)           | Portuguese (PT).                                                                |
| `multilingual_v2` | V2 shared multilingual path           | French, German, Arabic, Japanese, and other mapped languages.                   |
| `spanish_la`      | V2 explicit Spanish (LA)              | Spanish (LA).                                                                   |
| `portuguese_la`   | V2 explicit Portuguese (LA)           | Portuguese (LA).                                                                |

## Public model ID list

```text theme={null}
myvocal_v3
english_v2
spanish_es
portuguese_pt
multilingual_v2
spanish_la
portuguese_la
```

## V3 language scope

* Supported language count: `98`
* Excluded from support: `Kirghiz`, `Lingala`

<Card title="Open V3 language code list" icon="list" href="/api-reference/tts/v3-language-codes">
  View the complete supported language and code table.
</Card>

## Default path vs explicit `modelId`

* <b>Default path</b>: omit `modelId` and follow current V2/default mapping rules.
* <b>Explicit V3 path</b>: set `modelId` to `myvocal_v3`.

## V2 to V3 migration guidance

1. Keep your V2 flow as fallback.
2. Add a feature flag for `modelId: "myvocal_v3"`.
3. Use explicit `language` if you want deterministic target language output.
4. Omit `language` for auto-detect behavior on V3.
5. Roll out with traffic slices and monitor output quality.