For now, I've been using Google's Gemini 2.0 Flash, as they offer a pretty generous free tier, but if the tool goes out, I will eventually be charged for using

For now, I've been using Google's Gemini 2.0 Flash, as they offer a pretty generous free tier, but if the tool goes out, I will eventually be charged for using it. However, I plan to have a free tier, which should cover most users' needs, and a paid tier for more active users.