May 19, 2026

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:

{
  "agent": {
    "think": {
      "provider": {
        "type": "google",
        "model": "gemini-3.1-flash-lite",
        "temperature": 0.5
      }
    }
  }
}

• 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.