### Answer I don't have specific information in the available sources about using audio tags like

[excited]

or

[sighs]

directly in prompts for Retell AI. However, there are some related voice customization options you can configure: - **`voice_emotion`**: Controls the emotional tone of the agent's voice. Currently supported for Cartesia and Minimax TTS providers. Available options include:

calm

,

sympathetic

,

happy

,

sad

,

angry

,

fearful

,

surprised

[(1) ]() [(2) ]() - **`voice_temperature`**: Controls how stable the voice is, with values ranging from [0,2]. Higher values produce more variant speech generation This means you can set an overall emotional tone for your agent, but inline audio tags within prompts for dynamic emotional expressions aren't documented in the available sources. Check out these potentially useful sources: - [Update Voice Agent]() - [Create Voice Agent]() Would you like me to try to answer this more generally based on my knowledge?

​ To learn more, see the sources I considered: [[1] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[2] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) ​

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

@AI Evy which is the TTS model used for elevenlabs?

### Answer I don't have specific information in the available sources about which exact ElevenLabs TTS model Retell AI uses under the hood. The sources mention that ElevenLabs is one of the supported TTS providers for Retell AI, and that ElevenLabs voices cost $0.07 per minute when using Retell's Conversation Voice Engine. [(1) ]() For the specific model details (e.g., Eleven Multilingual v2, Eleven Turbo v2, etc.) , I'd recommend checking the official Retell AI documentation or reaching out to their support. Check out these potentially useful sources: - [Retell AI Pricing]() - [Documentation]() Would you like me to try to answer this more generally based on my knowledge?

​ To learn more, see the sources I considered: [[1] ](https://www.retellai.com/resources/inbound-vs-outbound-callers-pricing-comparison-2025) ​

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