Claude Prompt Caching: Cut LLM API Costs 70% With 4 Patterns
Production guide to Claude API prompt caching. Covers system prompt, RAG, tool, and multi-turn patterns — plus 2026 TTL gotcha and how to measure cost savings.
Tags
cost-optimization
5 posts
LLM API Pricing Comparison 2026
A practical comparison of major LLM API pricing as of April 2026, with real production scenario cost calculations.
Cut Agent Fleet Costs by 90% with Heterogeneous LLM Architecture
The Plan-Execute pattern: large models plan, small models execute. A practical guide for EMs and CTOs on heterogeneous LLM architecture strategies to dramatically reduce agent fleet costs without sacrificing quality.
Deep-Thinking Ratio: Cut LLM Inference Costs by 50%
Google & UVA research overturns the "longer = better" assumption for LLM reasoning. The Deep-Thinking Ratio (DTR) can cut inference costs in half while improving accuracy.
Karpathy: AI Training Costs Drop 40% Per Year
Karpathy's analysis reveals AI model training costs fall 40% annually. We examine the structural factors — hardware evolution, algorithm efficiency, and data pipeline optimization — and their industry impact.