Hi cool man for sure 😎 Great question! If you're interested in using your own OpenAI API keys, then we recommend checking out the demo that started it all—the original Yandere AI Girlfriend Simulator!
We actually removed the API requirement in AI2U based on previous players' feedback from the demo, but we're learning a lot of AI-savvy players would like it back. We'll see if it's something we can consider reintroducing!