---
title: "Build a KV Cache"
description: "Upgrade a generation loop to the cached form every serving system runs, inspect the KV cache tensors and their shapes, and prove the output is unchanged."
canonical_url: "https://fanout.sh/inference-eng/curriculum/03-04"
md_url: "https://fanout.sh/inference-eng/curriculum/03-04.md"
access: "public"
---

# Build a KV Cache

Upgrade a generation loop to the cached form every serving system runs, inspect the KV cache tensors and their shapes, and prove the output is unchanged.

---
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