Explore · The library

Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. The founder's own launch thread explains exactly how AI assembles winning ads from your clip library. x.com Thread · How Founders Use AI Excited to introduce Icon, The First AI Admaker Kennan Davison
  2. Video · How Founders Use AI Kennan Davison on Icon, the AI Admaker, and Raising from Founders Fund Kennan Davison (interview)
  3. An AI ad maker that turns your clips and assets into many testable ad variations; the reference product for AI creative volume... icon.com Tool · How Founders Use AI Icon: The Human Admaker Icon
  4. Shows where agentic ad creation is heading, from concepting to scaled A/B testing, from the investors backing it. kindredventures.com Article · How Founders Use AI Creatify: AI agents for generating video ads at scale (Series A announcement) Kindred Ventures
  5. The most accessible starting tool for static and banner creative generation at volume. adcreative.ai Tool · How Founders Use AI AdCreative.ai AdCreative.ai
  6. A trusted Meta ads operator separates the AI creative tactics that work from the hype. foxwelldigital.com Guide · How Founders Use AI AI and Creative for Meta Ads in 2025: A Definitive Guide Andrew Foxwell (Foxwell Digital)
  7. Video · How Founders Use AI Creative Strategy AI Mastery: Prompting to Producing (2025 Guide) Dara Denney
  8. A practical small-budget testing setup for AI-generated ads from a top performance creative. x.com Thread · How Founders Use AI Dara Denney on testing AI ads across different budgets Dara Denney
  9. Operators from Jones Road, Ridge, and HexClad on why AI makes creative strategy the highest-leverage role. open.spotify.com Podcast · How Founders Use AI Why AI Creative Strategists Will Become the Highest Paid Marketers (Motion Creative Strategy Summit) Marketing Operators x Motion
  10. A creative agency actually tested the generator tools, so you skip the trial-and-error. superside.com Article · How Founders Use AI 10 Best AI Ad Creative Generators & Tools (Tested) Superside
  11. Sensible framing of where AI belongs in each stage of the creative process. goprimer.com Article · How Founders Use AI Make Ads That Convert: AI in the Creative Process Primer
  12. First-party training on marketing use cases straight from the people building the model. openai.com Course · How Founders Use AI ChatGPT for marketing teams (OpenAI Academy) OpenAI
  13. Concrete prompt patterns for audience insights, messaging tests, and campaign angles. academy.openai.com Guide · How Founders Use AI ChatGPT for marketing: use cases OpenAI Academy
  14. A measurement company's sober take on where genAI genuinely moves performance numbers. funnel.io Article · How Founders Use AI How generative AI is transforming performance marketing Funnel
  15. Copy-paste persona prompts from a long-running independent ecommerce publication. practicalecommerce.com Article · How Founders Use AI ChatGPT Prompts for Customer Personas Practical Ecommerce
  16. A user-research tool's honest take on where AI personas help and where they mislead. looppanel.com Guide · How Founders Use AI How to Create a ChatGPT Persona in 2025 Looppanel
  17. Practical audience-intelligence and targeting-strategy prompts for early-stage marketers. m1-project.com Guide · How Founders Use AI How to Use ChatGPT for Marketing M1-Project
  18. Ad-specific prompts from a tool used daily by performance creative teams. foreplay.co Guide · How Founders Use AI How to Use ChatGPT for Facebook Ads: 10 Useful Prompts Foreplay
  19. Performance-tested prompts tied to metrics, not just clever copy. pixis.ai Article · How Founders Use AI 18 ChatGPT Prompts for Ad Creative and Copywriting That Improve Performance Pixis
  20. Structured variant-generation templates built around PAS, BAB, and AIDA frameworks. get-ryze.ai Guide · How Founders Use AI ChatGPT Prompts for Facebook Ads: 15 Copy Templates That Work Ryze AI
  21. A top consumer-psychology strategist on turning emotional research into ad creative. podcasts.apple.com Podcast · How Founders Use AI How to Utilize Psychological Biases in Marketing with Sarah Levinger The Marketing Millennials (feat. Sarah Levinger)
  22. Video · How Founders Use AI How Sarah Levinger Uses Psychology To Scale Meta Ads in 2025 Sarah Levinger (interview)
  23. Deep dive on research methods that surface insights AI alone would miss. thecopywriterclub.com Podcast · How Founders Use AI TCC Podcast #448: Finding Better Persuasive Insights with Sarah Levinger The Copywriter Club
  24. Why emotional data beats demographic targeting, and how AI accelerates finding it. elumynt.com Podcast · How Founders Use AI Human Psychology: The Most Overlooked Aspect of Modern Marketing (Sarah Levinger) Elumynt

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1327 questions GTM Go-to-market, from breaking in to how the best teams do it. 379 questions D2C Building a direct-to-consumer brand, India-first. 512 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 165 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 360 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 425 terms