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

# OpenAI

> Get started with OpenAI Realtime API

<Check>
  Find Elato on the [OpenAI Cookbook](https://cookbook.openai.com/examples/voice_solutions/running_realtime_api_speech_on_esp32_arduino_edge_runtime_elatoai) as a resource for Realtime Voice AI Hardware.
</Check>

<iframe className="w-full aspect-video rounded-xl" src="https://www.youtube.com/embed/o1eIAwVll5I" title="YouTube video player" frameBorder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowFullScreen />

OpenAI launched GPT-4o Realtime in 2024, which brought multimodal AI capabilities to the forefront. This model can understand and generate both text and audio in real-time, making it ideal for voice-based applications.

We are currently using the `gpt-realtime` series models for Elato's devices. More documentation here: [https://platform.openai.com/docs/models/gpt-realtime](https://platform.openai.com/docs/models/gpt-realtime).

To use OpenAI's models on your ESP32, simply set your `OPENAI_API_KEY` in the `.env` file in your Deno server (and NextJS web-app if you want to interact with a WebRTC client on screen).

## Tutorial

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