# vLLM Prefix Caching: Hash-Based Automatic Caching

> Source: https://sukruyusufkaya.com/en/learn/prompt-caching-context-engineering/pcce-64-vllm-prefix-caching
> Updated: 2026-05-14T14:48:51.607Z
> Category: Prompt Caching & Context Engineering
> Module: 10. Self-Hosted Inference + Caching
**TLDR:** vLLM (open-source production inference engine) prefix caching mekanizması: hash-based, automatic, block-level. Modül 2'de gördüğümüz PagedAttention bilgisinin uygulanışı.