Can anyone explain me how "429: Rate limit exceeded: free-models-per-day. Add 5 credits to unlock 1000 free model requests per day" works in openrouter? How long does the "1000 free model requests per day" last? I already added 5 bucks of credit around 2-3 months ago. I am down to 3 bucks now. Does how much I have it in my wallet affect it?

Remember when people laughed at chinese "ghost cities" and now they are mostly inhabited and bustling?
Remember when people were laughing about Dubai utilizing poop trucks for handling sewage because the rabid growth couldn't keep up with municipal infrastructure?
It's like people see the world as this fixed, unchanging thing or something and only end up looking like fools because of it.