Lesson 4 of 10 · Cut AI Product Costs Without Killing Quality
In this lesson. Do not pay twice for the same prompt, and do not paste the novel.
What you will learn
- What is safe to cache
- Summaries versus full history
- Retrieved chunks only
Walkthrough
You will cache identical system+user prompts where it is safe, and you will shrink context: summaries instead of full threads, only the retrieved chunks you need. Long context is a cost bug. This lesson is the diet.
Work through the ideas in order. After each point, pause and connect it to a task you already do — a document, a workflow, or a feature you own. The goal of Cut AI Product Costs Without Killing Quality is usable skill, not a pile of notes.
If something is unclear, rewrite it in your own words before you continue. Teaching the step back to yourself is the fastest way to see gaps.
Practice
Take one prompt and cut 50% of the context without changing the task. Estimate the token savings.
Keep the first attempt small. A finished example you can reuse beats a perfect plan you never run.
Check your understanding
- Can you explain the goal of this lesson in one sentence to a teammate?
- Where would you apply “What is safe to cache” in your own work this week?
- What would you change on a second pass of the practice?
Next. Continue to the following lesson when the practice has a real artifact, even a rough one.