OverpayingForAIPricing desk

Lesson 3 of 5 · 7 min read · Beginner

Turn notes into a document, then compare options

Your five bullet points become a readable update, and your three-way decision becomes a table with a recommendation. The trick in both is giving the model the facts and asking only for the structure.

In this lesson you will

  • Expand rough notes into a short, readable document without adding invented detail
  • Get a structured comparison of options you specify, with a one-line recommendation
  • Spot when a comparison has slipped from your facts into the model's assumptions

The pattern in both wins is the same: you supply every fact, the model supplies the shape. When you keep to that division, the output is trustworthy because there is nothing in it you did not put there. When the model starts adding facts of its own — and it will, if you leave room — you have to check every one.

Win 5: notes into a document

Try it

Five bullet points into a team update

Three free runs a day on the site key. Add your own key for unlimited runs.
  • Did it work? Count the facts: 8%, 4%, 5%, Priya, 6 October, November, the conference budget. All seven should be there and nothing else should be. A memo that says the redesign was delayed "due to resourcing" has invented a reason.
  • If not: the fix is the same as lesson 1 — *"Use only the facts in the notes."* You will find yourself typing this sentence a lot. That is fine; it works.

Win 6: compare options

Give the options, the criteria and what you will use the thing for. Ask for a table and a one-line recommendation. The table forces the model to say something about every option on every criterion, which is where vague comparisons usually hide.

Try it

Three laptops for one family

Three free runs a day on the site key. Add your own key for unlimited runs.
  • Did it work? All three options appear in every row, the recommendation is one line, and there is a stated condition ("if the video editing became daily, choose C"). If a row says "varies", the model dodged — ask it to commit.
  • Watch for: any specific claim about a product — a chip name, a battery hour figure, a price — that you did not give it. Those are the model's assumptions, and they need checking against the maker's page before you spend $1,500 on them.
What you supply versus what the model supplies. Stay on the left side of this line and the output is safe.
You supplyModel suppliesDanger zone
The options and their pricesThe table structurePrices you did not give it
What you will use it forWhich criteria matter most for that useSpecs it assumes about a product
Your constraints (budget, who uses it)A recommendation that fits themA recommendation that quietly ignores one

Knowledge check

The laptop comparison says option B has "excellent 14-hour battery life". You never mentioned battery. What should you do?

Lesson FAQ

Can AI write a whole document from a few notes?

Yes, and it will read well. The risk is that a short input invites it to fill gaps with plausible detail. Tell it to use only your facts, then check that every number and name in the output came from you.

Can I ask AI to compare products it has to look up?

You can, and paid plans with browsing do it better than free ones. But the model may mix a current price with an old spec, and it will not tell you which. For a purchase that matters, give it the prices and specs from the maker's page and let it do only the comparison.

How do I get a straight recommendation instead of "it depends"?

Ask for one line and a condition: "Recommend one, and say what would change your answer." That gives the model permission to commit while still being honest about the trade-off.

Will the model remember my notes next time?

Not by default in a new chat. Some paid plans have a memory feature, and all three vendors let you keep a project or folder of files on paid tiers. For a one-off memo, just paste the notes again.

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