The commercial brief — what you are actually being asked to make

easy

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Why this matters

A commercial is not a film about a product. It is an argument for a product, delivered in 15–60 seconds, to an audience that did not ask to see it. Every ad that has ever worked had a single job it was asked to do — launch a brand, shift a perception, drive a click — and every decision in production either served that job or it didn't. AI tools collapse the cost of making pretty images, which makes the brief even more load-bearing. Without a sharp brief you will generate 200 beautiful clips that don't sell anything. Learn to read and write the brief first; everything else is execution.

Demo

The canonical creative brief has ~8 fields: Client, Product, Objective (awareness / consideration / conversion), Audience (one specific person, not a demo segment), Insight (a true thing about the audience that the product answers), Proposition (the one-line promise), Tone, Mandatories (logo, endframe, legal). The 'one-line promise' is the seed from which the whole commercial grows. If the brief has three propositions, the ad will fail — pick one.

# Creative brief template
 
Client:            [brand]
Product:           [the thing being sold]
Objective:         [awareness | consideration | conversion | loyalty]
Audience:          [one person: name, age, context, what they already feel]
Insight:           [one true sentence about that person's life]
Proposition:       [one-line promise the product makes against that insight]
Tone:              [3 adjectives, no filler]
Mandatories:       [logo lockup, endframe duration, legal/super requirements]
Deliverables:      [1x :30 hero, 2x :15 cutdowns, 4x :06 bumpers, :09 vertical Reel]
Channels:          [where it lives: TV, pre-roll, Reels, IG feed, OOH, CTV]
KPI:               [how success is measured]
 
Example — "the whole ad in one sentence":
  "Tell busy parents that [BRAND] breakfast takes 2 minutes, not 10,
   so their morning feels like victory, not chaos."

Try it yourself

Pick an ad you actually remember (or hated). Reverse-engineer its brief: what was the single proposition? Who was the audience? Why did it work or not? You should be able to write all 8 fields in under 10 minutes — if you can't, the ad was doing too many jobs.

Write a brief for a made-up product — a new instant coffee, a savings app, a delivery service. Constraint: the proposition must be one sentence, and the audience must be a specific person, not a census bracket.

Take one brief and write THREE different propositions for the same product. Shoot an 8-second pre-viz for each. Notice how a change in proposition changes the entire visual approach.

Read 3 Cannes Lions case studies (Film Craft category). Note how the brief is stated up front in every one — it is the single thing every craft decision is defended against.

Audit your own AI-generated ads from the past year: did each start from a brief, or from 'something that would look cool'? The first kind sells; the second kind is a portfolio piece.

Prompt your AI

Use these three in order. Each builds on the one before.

1. Basics & terminology

In one paragraph, explain what a creative brief is for a commercial and why the 'single-minded proposition' is the most important line on the brief, using an example I'd recognise.

2. Why it works (the mechanism)

Walk me through how account planners at traditional ad agencies derive the proposition from audience insight — what 'insight' means (a true thing the audience already feels, that the product can answer), how it's pressure-tested, and why weak insights produce forgettable ads.

3. Advanced — application & what's next

I'm building an AI-first creative practice. Walk me through how to run a modern brief: how to gather audience insight (first-party data, social listening, subreddit reading, interviews), how to pressure-test a proposition in an afternoon with AI pre-viz, and how to write a brief that is specific enough to fight over but open enough for execution.