How Prompt Caching Reduces AI API Costs by Up to 90%

How prompt caching works on OpenAI, Anthropic, and Google, and how to implement it to reduce repeat-context costs by up to 90%.

This guide covers AI infrastructure cost analysis based on live pricing data from 300+ models across 45+ providers, synced every 6 hours from official sources. Read the full article on CostMyAI for detailed cost tables, model comparisons, and scenario analysis.