You type "hi" to an LLM.

You just typed hi to an AI. In the next second, it's going to share a GPU with hundreds of strangers. The moment you hit send, your message gets locked inside an encrypted packet and fired down fiber optic cables, sometimes under an entire ocean. It hits the front door first.

A load balancer catches it, and the gateway checks your key, your limits, and lets you in. Then a router makes a smart choice. It sends you to the exact server that already remembers your chat. Less work? Faster answer. Now you wait in line. Welcome to the data center.

Every rack in here is one machine. 72 GPUs pulling 120 kilowatts. So hot, it's cooled with liquid that comes out at 65 degrees. Your turn. Whatever it already remembers, it skips. The rest, it reads all at once. Every word, in parallel. One giant flash. Then something wild happens. Your memory,

the KV cache, gets shipped across the network to a different set of GPUs, just to write the reply. And here's those strangers. You're one passenger on a packed train. At every step, someone gets off, someone new gets on. Nobody waits. Now the answer comes out one word at a time. And the GPU?

It's barely thinking. It's mostly waiting on memory. Each word races back to your phone the moment it's ready. All of that for one high in under a second.

All of that for one high in under a second.