Input languages
The Voice Agent API uses Universal-3.5 Pro Streaming for speech recognition. It supports the following input languages with native code-switching:| Language | Flag |
|---|---|
| English | 🇺🇸 |
| Spanish | 🇪🇸 |
| German | 🇩🇪 |
| French | 🇫🇷 |
| Portuguese | 🇵🇹 |
| Italian | 🇮🇹 |
| Turkish | 🇹🇷 |
| Dutch | 🇳🇱 |
| Swedish | 🇸🇪 |
| Norwegian | 🇳🇴 |
| Danish | 🇩🇰 |
| Finnish | 🇫🇮 |
| Hindi | 🇮🇳 |
| Vietnamese | 🇻🇳 |
| Arabic | 🇸🇦 |
| Hebrew | 🇮🇱 |
| Japanese | 🇯🇵 |
| Chinese | 🇨🇳 |
Output languages
The Voice Agent API officially supports the following output languages, each backed by at least one voice with a matching primary or native accent:| Language | Flag | Recommended voices |
|---|---|---|
| English | 🇺🇸 | ivy, james, tyler, winter, bella, david, kyle, helen, martha, river, emma, victor, eleanor |
| French | 🇫🇷 | pierre |
| Italian | 🇮🇹 | giulia, luca |
| Spanish | 🇪🇸 | lucia, mateo, diego |
| Hindi | 🇮🇳 | arjun |
| Russian | 🇷🇺 | dmitri |
Coming soon
Native-accent voices for the following languages are on the roadmap. If you’d like early access or want to register interest, contact support@assemblyai.com.| Language | Flag |
|---|---|
| German | 🇩🇪 |
| Portuguese | 🇵🇹 |
| Turkish | 🇹🇷 |
| Dutch | 🇳🇱 |
| Swedish | 🇸🇪 |
| Norwegian | 🇳🇴 |
| Danish | 🇩🇰 |
| Finnish | 🇫🇮 |
| Vietnamese | 🇻🇳 |
| Arabic | 🇸🇦 |
| Hebrew | 🇮🇱 |
| Japanese | 🇯🇵 |
| Chinese | 🇨🇳 |