Turns out even a proxy can be worth $8bn with the right business model behind it.
Users get an array of providers competing behind a single API, meaning they have to compete on price and quality not vendor lock-in. This encourages users to join OpenRouter over specific model vendors.
Providers get easy access to revenue (and data) and new customers with little to no ad spending, encouraging them onto the platform too.
And that's all you need. Win win.
Well done and congratulations.