3:33:08

John Cheney demos building custom GPTs and integrating AI into products using Replit and OpenAI. He shows creating assistants (songwriter, sales guru, travel assistant), uploading a knowledge_base, tuning system prompts (e.g., "Responses under 250 words"), and sharing GPTs. He also describes building a Replit-hosted chatbot (floating travel assistant), wiring Stripe checkout (webhooks), and common deployment/testing issues (Replit preview can't open external domains; must deploy to test payments). Practical metrics and anecdotes: 140 clicks on a travel bot launch, spent ~35 hours building in Replit, 5 primary texts × 5 × 5 × 6 images → 750 combinations, and cost/usage notes (approx. $0.35 per million words; response length considered as fraction of 1M tokens). The session covers automating social posting (Buffer, Zapier), content pipelines (generate → Google Drive → Buffer), sales mindset (build-in-public, consistency), and productization strategies (pricing, MVP, referrals).

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