> A company like OpenRouter that promises the cheapest tokens by the minute becomes essential on the low-cost margin.

Okay, I can see that, but if their value is just cost optimization, their ability to mark up the tokens becomes increasingly difficult as well. Or, people will build a router themselves to avoid paying the markup, possibly with reduced features, but someone will open source it. Heck, Claude or GPT can probably one-shot it these days. Either way, I think the whole OpenRouter model is going to struggle unless the market stays frothy.