I also am using OpenRouter because OpenAI isn't a great fit for me. I also stopped using OpenAI because they expire your API credits even if you don't use them. Yeah, it's only $10, but I'm not spending another dime with them.
Really a shame OpenAI left their non-profit (and open) roots, could have been something different but nope, the machine ate them whole.
I never heard of OpenRouter prior to this thread, but will now never use them and advocate they never be used either.
Enlightened self-interest is when you realize that you win by being good to your customers, instead of treating customer service like a zero-sum game.
Btw, unsurprisingly, the time for expiry appears to be in UTC in case anyone else is in the situation of trying to spend down their credits before they disappear.