Prompt Caching Is an Interface Contract, Not a Switch
中文摘要
提示词缓存并非简单的基础设施开关，而是一种接口契约，需要特定的交互方式才能实现降本增效。
English Summary
Prompt caching should be viewed as an interface contract rather than a simple infrastructure switch to effectively reduce costs and latency.
原文节选
Prompt caching sounds like an infrastructure toggle: enable it, send the same instructions again, and pay less while the model responds… Continue reading on Medium »