> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sentivue.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Gemini

> Connect Gemini to SentiVue Talk

Gemini provides the **language model**, using an API key from Google AI Studio.

## Getting an API key

1. Go to [Google AI Studio](https://aistudio.google.com/apikey).
2. Sign in and create an API key.
3. Pick a Google Cloud project when prompted, then copy the key.

## Adding the connection

1. Go to **Connections** and choose **Gemini**.
2. Paste the API key.
3. Save.

## What you can select afterwards

Choose your models on [Model Configurations](/talk/configurations/inference-providers).

**Language model** — start with a `flash` model and move to `pro` only if the agent struggles with your prompt. A slow reply is heard as hesitation. See Google's [model list](https://ai.google.dev/gemini-api/docs/models).

## Related providers

| Provider                                                               | Use it for                                   |
| ---------------------------------------------------------------------- | -------------------------------------------- |
| [Google Cloud](/talk/configurations/providers/google-cloud)            | Chirp 3 HD voices and speech-to-text         |
| [Gemini TTS](/talk/configurations/providers/google-gemini-tts)         | Gemini's own speech model                    |
| [Gemini Live](/talk/configurations/providers/google-gemini-live)       | Speech-to-speech                             |
| [Vertex AI Gemini](/talk/configurations/providers/vertex-ai)           | Gemini through your own Google Cloud project |
| [Vertex AI Gemini Live](/talk/configurations/providers/vertex-ai-live) | Speech-to-speech through your own project    |

Choose Vertex AI when you need Google Cloud billing, IAM controls, or data kept in a specific region.

## Troubleshooting

<AccordionGroup>
  <Accordion title="The key is rejected">
    Confirm you copied it from [Google AI Studio](https://aistudio.google.com/apikey) rather than from the Google Cloud console. A Google Cloud service account is a different credential and belongs on the [Google Cloud](/talk/configurations/providers/google-cloud) connection.
  </Accordion>

  <Accordion title="I connected Gemini but there are no voices">
    This connection drives the language model only. Voices come from [Google Cloud](/talk/configurations/providers/google-cloud) or [Gemini TTS](/talk/configurations/providers/google-gemini-tts), each connected separately.
  </Accordion>
</AccordionGroup>