> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developers.deepgram.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.deepgram.com/_mcp/server.

## 🤖 New LLM Models Support & Bug Fixes

We've added support for new LLM models in the Voice Agent API:

- OpenAI GPT-5.3 Instant (`gpt-5.3-chat-latest`)
- OpenAI GPT 5.4 (`gpt-5.4`)
- Google Gemini 3.1 Flash Lite (`gemini-3.1-flash-lite-preview`)

**Example:**

```json
{
  "type": "Settings",
  "agent": {
    "think": {
      "provider": {
        "type": "open_ai",
        "model": "gpt-5.3-chat-latest"
      }
    }
  }
}
```

For the full list of supported models and pricing tiers, visit our [Voice Agent LLM Models documentation](/docs/voice-agent-llm-models#openai).

### Fixes

- Resolves an issue where the GPT-5.2 Instant model used an incorrect model ID and pricing tier. The model now uses the correct ID (`gpt-5.2-chat-latest`) and is assigned to the `Advanced` tier.