---
title: "Is OpenAI prompt caching worth reorganizing a frequently used prompt?"  
description: "Is OpenAI prompt caching worth reorganizing a frequently used prompt?"  
author: "Shamma Al Marzooqi"  
published: 2026-10-15  
updated: 2026-10-15  
canonical: https://www.mindstick.com/forum/162363/is-openai-prompt-caching-worth-reorganizing-a-frequently-used-prompt  
category: "OpenAI API"  
tags: ["OpenAI", "api(s)", "Prompt Caching"]  
reading_time: 1 minute  

---

# Is OpenAI prompt caching worth reorganizing a frequently used prompt?

I have an API request that includes the same long instructions and reference material for most users, followed by a small amount of user-specific input. Has prompt caching made a noticeable difference for this kind of workload?

I’m wondering whether it’s worth restructuring the request to keep a **shared prompt prefix**, or whether the savings and latency improvements are usually too small to justify the extra care. If you’ve tried this in production, what did you measure?


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Original Source: https://www.mindstick.com/forum/162363/is-openai-prompt-caching-worth-reorganizing-a-frequently-used-prompt

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