FR
  • C1
  • Orchestrate
  • Choose
  • 4 min

The right model at each step

Situation

The situation

Small model, large model or a person: each step has its level.

You work in the sales team of an SME that makes windows near Nantes. You are answering a town hall’s call for tenders, step by step, with AI.

Idea 1 of 3

Each step has its tool

In a multi-step job, not every step needs the same intelligence. A small model is enough for formatting. A large model is for analysing or comparing.

Idea 2 of 3

Where people come in

Some steps belong to a person: what commits the business (a price, a signature), what affects someone (a hire), what goes out to the customer. AI prepares, people decide.

Idea 3 of 3

The right mix

A small model where it is enough: faster and more frugal. A large model where it counts. A person where a decision is needed. That is what orchestrating means.

Question 1 of 2

Which step belongs to a person?

Which step belongs to a person?
See the answer

Choosing the candidate to hire A decision that affects a person stays human. AI can help prepare, not decide.

Question 2 of 2

Why not use the largest model at every step?

Why not use the largest model at every step?
See the answer

It is slower, and unnecessary for simple tasks The largest model adds nothing to a formatting task. It only makes you wait longer.

Exercise

Your turn

For each step of the tender response, choose who handles it.

Fix the spelling in the cover letter

Small model A quick, simple task: a small model is enough.

Extract the technical requirements from a 60-page specification

Large model A long document with important details: you need a strong model with a large context window.

Approve the final price and sign the bid

A person (reviews and decides) It commits the business: a person decides and signs.

Put your list of reference projects into a table

Small model Simple formatting: no need for a large model.

Compare the requirements with your windows and spot the gaps

Large model You need to cross-check two documents and reason: a job for a large model.

Check that every requested document is attached before sending

A person (reviews and decides) One missing document can get the bid rejected: a person checks the list before sending.

End of the lesson

Lesson complete

Key point

Each step gets its level: small model, large model, or a person who decides.