I was interested to read (WSJ so I won't link - I read on reader mode...) that Microsoft was earlier this year losing between $20 - $80 per user per month on Github Copilot, due to the expense of running the thing.
It seems like LLM-based AI (at least at the moment) is inverting the old model of software being expensive to develop but with only marginal costs to run.
(I still don't know who replit's target customers are, and this hasn't really helped clear this up).