ResourcesIntegrationsLarge language models

Google

Use Google Gemini as your Vapi voice agent's language model.

Google provides language models for Vapi voice agents.

You can use Google through Vapi’s default integration, or connect your own account in Integrations.

Supported capability

CapabilityProvider value
Language modelgoogle

Language model

Set model.provider to google and model.model to a Gemini model.

$curl -X PATCH "https://api.vapi.ai/assistant/ASSISTANT_ID" \
>  -H "Authorization: Bearer $VAPI_API_KEY" \
>  -H "Content-Type: application/json" \
>  -d '{
>    "model": { "provider": "google", "model": "gemini-2.5-flash" }
>  }'

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

ModelModel ID
Gemini 3.5 Flashgemini-3.5-flash
Gemini 3.1 Flash Litegemini-3.1-flash-lite
Gemini 3 Flashgemini-3-flash-preview
Gemini 2.5 Progemini-2.5-pro
Gemini 2.5 Flashgemini-2.5-flash
Gemini 2.5 Flash Litegemini-2.5-flash-lite
Google speech-to-text

Configure Google for speech-to-text.

Model providers

Compare every language model provider Vapi supports.