ResourcesIntegrationsVoices (Text-to-speech)

Sesame

Use Sesame’s text-to-speech voices for your Vapi voice agent.

Sesame is a text-to-speech provider you can use for your voice agent’s voice. This page covers what Sesame is and how to select a voice.

What is Sesame

Sesame is a text-to-speech provider whose conversational speech model generates natural voice output. On Vapi, you select a Sesame voice for an assistant.

Sesame is available through Vapi’s default integration. There is no separate Sesame account to connect.

Text-to-speech

Set voice.provider to sesame, voice.model to csm-1b, and voice.voiceId to a voice.

$curl -X PATCH "https://api.vapi.ai/assistant/ASSISTANT_ID" \
>  -H "Authorization: Bearer $VAPI_API_KEY" \
>  -H "Content-Type: application/json" \
>  -d '{
>    "voice": { "provider": "sesame", "model": "csm-1b", "voiceId": "Elliot" }
>  }'

For additional API configuration options, review the SesameVoice fields in the Create Assistant API reference.

VoiceVoice ID
Elliot (default)Elliot
ColeCole
HanaHana
HarryHarry
LilyLily
NehaNeha
PaigePaige
RohanRohan
SavannahSavannah
SpencerSpencer

Supported languages

Sesame text-to-speech has no separate language setting. The csm-1b model is English.

Voices

Compare every text-to-speech provider Vapi supports.