Inflection AI

Inflection AI is a large language model provider whose Pi model is tuned for natural, empathetic conversation. Connect Inflection AI to use Pi as the LLM on a Vapi assistant. This page covers what Inflection AI is and the model it supports.

What is Inflection AI

Inflection AI builds the Pi family of large language models, designed for conversational interactions. On Vapi, you select an Inflection AI model as the LLM for a voice agent.

You can use Inflection AI through Vapi’s default integration, or use your own Inflection AI account by connecting it in Integrations.

Language model

Set model.provider to inflection-ai and model.model to an Inflection AI 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": "inflection-ai", "model": "inflection_3_pi" }
>
  }'

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

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