OpenRouter is already the entrenched go-to router tbh. There's competitors (Vercel) but they're already well known. Stripe can also make them more competitive because they can waive / profit off the transaction cost. Considering stripe takes like a 3% fee, and the openrouter markup is 5%, that's a pretty big boost.

Now is that enough revenue to earn back 7B.... I'm not too sure. I guess they're betting realy big that these sorts of model routers will gain explosive token usage in the future