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Building Safe, Creative AI Experiences for Kids

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Hello Cooper is a reading platform with Cooper AI that lets kids remix books; a 35‑child beta shows 23/35 kids complete remixes and a 66% completion rate, and the team reports ~1.8× engagement after a three-layer defense architecture (input shields, prompt scaffolding, output validation). Measurement uses PostHog and Google Perspective API, reports zero safety incidents post‑defenses, and tests a constraint paradox hypothesis while planning scale to 200 then 600 users.

AI-written summary · about

  1. 0:00Introduction and setup
  2. 1:11Hello Cooper platform demo
  3. 2:35Safety challenges with kids
  4. 5:06Three-layer defense architecture
  5. 7:13Measuring impact and engagement
  6. 10:27Constraint paradox findings
  7. 13:01Research roadmap and scaling
  8. 15:33Three principles of lightweight alignment
  9. 18:41Q&A with audience
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