# Prerequisites

Before you begin, ensure you have the following prerequisites:

- .NET 10 SDK or later
- OpenAI api key

Set the following environment variables:

```powershell
$env:OPENAI_API_KEY="*****" # Replace with your OpenAI api key
$env:OPENAI_CHAT_MODEL_NAME="gpt-5.4-mini"  # Optional, defaults to gpt-5.4-mini
```
