Changelog

Gemini 3.1 Flash Lite Now Available

gemini-3.1-flash-lite is now available as a managed Google LLM in the Voice Agent API. This Standard tier model replaces the preview version.

Set the model in your agent configuration:

1
{
2
  "agent": {
3
    "think": {
4
      "provider": {
5
        "type": "google",
6
        "model": "gemini-3.1-flash-lite",
7
        "temperature": 0.5
8
      }
9
    }
10
  }
11
}

Deprecations

• gemini-3.1-flash-lite-preview is deprecated and will be removed on May 26, 2025. Migrate to gemini-3.1-flash-lite.

For more details on Gemini model deprecations, see Google’s Gemini deprecations page.

For the full list of supported models and pricing tiers, see the Voice Agent LLM Models documentation.