Using AI at Work: AI in the Workplace & Generative AI for Business Leaders 92: Using AI for Smarter Marketing: Synthetic Audiences, OpenClaw & AI Agents with Justin Brooke
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Feb 23, 2026 Justin Brooke, founder of AdSkills and AgentSkills.ai and a veteran direct-response advertiser, explains using AI to build synthetic audiences and virtual focus groups. He describes creating detailed personas, scoring ad and funnel variations, and running parallel model tests. Conversations cover tooling, security tradeoffs, and why AI-driven persona testing could become the first step in modern marketing.
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How Justin Turned $60 Into Six Figures
- Justin turned $60 into six figures by doubling his money every month for 11 months using low-budget Google Ads and lessons from Russell Brunson.
- He started with $2/day budgets, learned from a massive course library as an intern, and scaled into a seven-figure agency and global speaking career.
LLMs As Detailed Customer Personas
- LLMs can act as detailed customer personas and provide actionable feedback when fed rich persona data instead of single-line prompts.
- Justin automated: feed copy → persona feedback → copywriter rewrite, which immediately produced better ad copy and engagement.
From One Persona To Virtual Focus Groups
- Justin and a mathematician collaborator expanded from single personas to hundreds, creating virtual focus groups that emulate real-market diversity.
- They added a data-analyst scoring step to rank variations and found the top-scoring variants won 8/10 times in live tests.