Where Token Costs for Long-Running Agent Tasks Come From: 99.4% Input Tokens and 5 Prefix Cache Optimization Practices
Author’s note: This article breaks down the Token bill for long-running Agent tasks, explains why input Tokens account for most of the usage, and shows how to structure context to improve prefix cache reuse. Many teams discover a problem only after integrating multi-step Agents into their products and checking the bill at the end of…