### Answer --- For an agent that needs to speak both French and English, you should select multilingual (

multi

) . [(1) ]() The multilingual option enables auto-detection of the language based on the text and supports seamlessly switching between multiple languages within a single conversation. According to the changelog, multilingual mode now supports switching between English, Spanish, French, German, Hindi, Russian, Portuguese, Japanese, Italian, and Dutch. [(2) ]() Note that the language setting determines what language the agent understands (speech-to-text) and influences pronunciation, but it does not enforce the agent to respond in a certain language—you'll need to add that instruction in your prompt (e.g., "respond in French or English based on the user's language") . [(1) ]()

​ To learn more, see the sources I considered: [[1] Set language for your agent](https://docs.retellai.com/agent/language) [[2] Platform Changelogs | Retell AI](https://www.retellai.com/changelog) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

@AI Evy And multiple questions at once

### Answer --- ### Voice Restrictions for Multilingual The available sources don't explicitly document which voices are compatible with multilingual mode. However, based on the voice model options, some voice models are language-specific: - eleven_flash_v2 is English only [(1) ]() - eleven_flash_v2_5 is multilingual - eleven_multilingual_v2 supports rich emotional expression with multilingual capabilities For multilingual agents, you'd want to select a voice model that supports multiple languages (like

eleven_multilingual_v2

or

eleven_flash_v2_5

) rather than English-only models. ### Handling Multiple Questions Regarding asking multiple questions at once—the sources I have don't contain specific documentation about configuring agents to handle multiple questions in a single user turn. This would typically be addressed through prompt engineering in your agent's instructions. Check out these potentially useful sources for more details: - [Retell AI Supported Languages]() - [Platform Changelogs]() - [Update Voice Agent API]() Would you like me to try a general answer on handling multiple questions?

​ To learn more, see the sources I considered: [[1] Platform Changelogs | Retell AI](https://www.retellai.com/changelog) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer --- The sources I have access to don't explicitly document which voices are compatible with multilingual mode or any specific restrictions. However, based on the available voice model options in the API documentation, here are the voice models you can select from: [(1) ]() -

eleven_turbo_v2

-

eleven_flash_v2

-

eleven_turbo_v2_5

-

eleven_flash_v2_5

-

eleven_multilingual_v2

-

sonic-2

-

sonic-3

-

sonic-turbo

-

tts-1

-

gpt-4o-mini-tts

-

speech-02-turbo

The naming suggests that

eleven_multilingual_v2

is specifically designed for multilingual use cases. For definitive guidance on voice compatibility with multilingual mode, I'd recommend checking the Dashboard where you can preview voices and see their capabilities, or reaching out via: - [Contact Sales]() - [Retell AI GitHub]() Would you like a general answer based on common patterns with multilingual voice agents?

​ To learn more, see the sources I considered: [[1] Get Voice Agent](https://docs.retellai.com/api-references/get-agent) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.