How much are you actually spending on AI APIs? I built an OpenSource router to cut that.

I've been working on Manifest, an open-source AI cost optimization tool. The idea is simple: instead of sending every request to the same expensive model, it routes each one to the cheapest model that can handle it. Simple question → cheap model. Complex coding task → heavier model. How many people are already paying for subscriptions (ChatGPT Plus, GitHub Copilot, Ollama Cloud Pro, etc.) but still pay separately for API access on top of that. So we added direct subscription.