Thanks for asking! We removed a pesky token requirement last year, and since then, AI2U has been a one-time payment game. Players can launch the game and immediately start playing -- Gemini is our default generative AI for text while we use MiniMax and Azure for text-to-speech. While it doesn't run locally, no further payments are required, and itch.io players have the option to utilize their own OpenAI API keys if they prefer. 💖🔪