As reported by Vercel, the addition of Grok 4.5 is less about the model itself and more about the ongoing platformization of AI infrastructure. The real story here is the quiet battle for the middleware layer, where companies like Vercel aim to become the default router between applications and a proliferating array of models. Their promise of no markup on inference, including for Bring Your Own Key requests, is a direct challenge to other gateways and a bet that they can monetize through ancillary services and developer lock-in. In our view, the strategic play is to become the neutral, high-uptime pipe, making the underlying model providers increasingly interchangeable commodities.