# 166 AI agent focus groups are the future of marketing

# 166 AI agent focus groups are the future of marketing

From Build With AI by Corey Ganim

May 19, 2026 · 50 min · Episode 1

About this episode

Justin Brooke discusses his AI-powered predictive marketing framework and its high ROI.

I sat down with Justin Brooke, a 20-year advertising veteran who turned a $60 Google Ads campaign into a seven-figure agency — and then built an AI-powered prediction system that has since generated $260,000 for him personally. In this episode, Justin walks through his "predictive wear" framework: a multi-agent workflow that runs your ad copy and sales pages through a synthetic focus group of 13 detailed AI personas before a single dollar is spent on ads. We break down how the workflow is built in Mind Studio, why persona quality makes or breaks accuracy, and how Harvard, Stanford, and the New York Times have all validated this exact approach. By the end of this episode, you'll understand why running your marketing through a virtual focus group before it goes out the door may be the single highest-ROI move you can make right now.Timestamps03:29 – What "predictive wear" is and why Justin built it05:00 – Why you need multiple personas, not just one08:00 – How the 13-persona focus group workflow runs09:00 – The prediction engine: picking the winning ad variation10:00 – Harvard, Stanford, and the New York Times validate the method13:15 – The ROI: $260K personally, 4 to 6X ROAS for…

People in this episode

Host: Corey Ganim

Guest: Justin Brooke

Topics covered

  • AI marketing
  • predictive analytics
  • advertising
  • focus groups
  • entrepreneurship

Keywords

  • AI agent
  • marketing
  • predictive wear
  • ad copy
  • sales pages
  • focus group
  • personas

Mentioned in this episode

Organizations: Harvard, Stanford, New York Times

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