---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/blog/tag/cost-optimization"
description: "Explore articles tagged with Cost Optimization by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn Cost Optimization best practices, practical tips, and in-depth guides."
title: "Umesh Malik's Blog - Cost Optimization Articles | Cost Optimization Tutorials"
tokens: 292
generator: "scripts/generate-page-markdown.mjs"
---

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# Cost Optimization

2 articles

 [![Reinforcement fine-tuning: a 4B open model matching a frontier LLM on retrieval at a fraction of the cost](https://umesh-malik.com/blog/reinforcement-fine-tuning-small-models-retrieval-cover.png)

LLM Engineering • Aug 6, 2026

### Reinforcement Fine-Tuning: When a 4B Model Beats GPT-5.6

Reinforcement fine-tuning let a 4B open model match GPT-5.6 Sol on retrieval at 100x lower cost. How RFT works, and when it beats prompting a frontier LLM.

10 min read

Read more →](https://umesh-malik.com/blog/reinforcement-fine-tuning-small-models-retrieval)

 [![Docker Swarm versus Kubernetes cost comparison: $166 per year simple setup versus $200K complex infrastructure](https://umesh-malik.com/blog/docker-swarm-vs-k8s-cover.png)

Web Engineering • Feb 17, 2026

### Docker Swarm vs Kubernetes: $166/yr Beats a $200K Cluster

Docker Swarm vs Kubernetes: a live SaaS runs for $166/year with zero crashes in 10 years, while the average Kubernetes cluster wastes 87% of its CPU.

20 min read

Read more →](https://umesh-malik.com/blog/docker-swarm-vs-kubernetes-166-dollar-reality-check)