---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/blog/tag/llm-cost"
description: "Explore articles tagged with LLM Cost by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn LLM Cost best practices, practical tips, and in-depth guides."
title: "Umesh Malik's Blog - LLM Cost Articles | LLM Cost Tutorials"
tokens: 161
generator: "scripts/generate-page-markdown.mjs"
---

[← Back to Blog](https://umesh-malik.com/blog)

# LLM Cost

1 article

 [![Editorial cover for a post on fixing agent prompt cache misses, with stats: 14 percent first-request hit rate, 12.5 times cost gap, 68 percent bill cut](https://umesh-malik.com/blog/fix-agent-prompt-cache-misses-cover.png)

LLM Engineering • Oct 23, 2026

### Fix Agent Prompt Cache Misses: A 14% First-Request Hit Rate

Fix agent prompt cache misses by splitting the system prompt at a shared marker. Cloudflare's first request hit cache 14-26% of the time. Audit and fix inside.

9 min read

Read more →](https://umesh-malik.com/blog/fix-agent-prompt-cache-misses)