Has anyone already implemented a GPT-like service payable with #Bitcoin Lightning?

I think of a VPS with Ollama as backend and to use it you have to pay some sats per-request or per-month.

Imagine having the frontend chat inside a #Nostr app and being able to pay and use it with just a Zap.

You can view a list of public servers and choose the one you want to use based on the price they ask or other properties. So there could be a market of them.