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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. A reusable Claude workflow that converts messy transcripts into themes and actions in 90 seconds. sidsaladi.substack.com Article · How Founders Use AI AI User Research Skill 101: A Claude Skill That Turns Raw Interview Dumps Into Themes Sid Saladi
  2. A copy-paste transcript analysis prompt to start with before building anything fancier. genaiuniversity.com Guide · How Founders Use AI Analyze Transcripts with Claude AI (Free Prompt) GenAI University
  3. Shows Claude Code processing many interviews in parallel, the power-user version of this workflow. marketbetter.ai Article · How Founders Use AI AI Customer Interview Analysis: Mining Discovery Calls for Intel with Claude Code MarketBetter
  4. A professional research firm's assessment of Claude for qualitative analysis, limits included. cascadeinsights.com Article · How Founders Use AI A Market Researcher's Review: Claude Cascade Insights
  5. A working researcher's real AI workflow rather than a tool vendor's pitch. userinterviews.com Article · How Founders Use AI How a UX Researcher Uses AI in Their Daily Workflow User Interviews
  6. Primary research on AI running interviews at scale and feeding results back to humans. anthropic.com Article · How Founders Use AI Introducing Anthropic Interviewer Anthropic
  7. How AI moderation removes the depth-versus-scale trade-off in discovery. listenlabs.ai Article · How Founders Use AI How to Scale User Interviews to Large Panels Listen Labs
  8. A full founder reference for discovery interviews with AI assistance woven in. userintuition.ai Guide · How Founders Use AI Customer Discovery Interviews: The Founder Guide User Intuition
  9. Actual empirical studies measuring how far AI-simulated behaviour diverges from real users. nngroup.com Article · How Founders Use AI Evaluating AI-Simulated Behavior: Insights from Three Studies on Digital Twins and Synthetic Users Nielsen Norman Group
  10. The sharpest critique: synthetic research borrows the authority of science without its standards. interactions.acm.org Article · How Founders Use AI The Synthetic Persona Fallacy: How AI-Generated Research Undermines UX Research ACM Interactions
  11. The industry-adoption view, including where synthetic data already works in production research. forbes.com Article · How Founders Use AI The Promising Rise Of Synthetic Personas In Market Research Forbes Tech Council
  12. Clean side-by-side of researched personas versus AI-generated ones. ixdf.org Article · How Founders Use AI Are AI-Generated Synthetic Users Replacing Personas? What UX Designers Need to Know Interaction Design Foundation
  13. An enterprise consultancy's measured take on synthetic consumer research. cognizant.com Article · How Founders Use AI The Rise of Synthetic Users: Are AI-Generated Personas The Future of Consumer Research? Cognizant
  14. The insights industry's own debate about synthetic respondents, from inside the profession. quirks.com Article · How Founders Use AI The future of synthetic respondents in the insights industry Quirk's
  15. A promise-versus-reality scorecard for synthetic responses in SaaS research. developmentcorporate.com Article · How Founders Use AI Synthetic Responses in Market Research: Promise vs. Reality Development Corporate
  16. Covers the methodology questions a survey platform has to answer before using synthetic data. idsurvey.com Article · How Founders Use AI Synthetic Data and Synthetic Personas in Market Research IdSurvey
  17. Useful distinction between simulating a persona and pretending it is research. urbinaconsulting.com Article · How Founders Use AI Synthetic users vs persona simulations Urbina Consulting
  18. The bull case from a startup building AI-persona research, worth reading critically. blog.atypica.ai Article · How Founders Use AI Market Research Is Being Rewritten: Why AI Personas Are the Next Core Capability Atypica
  19. Concrete examples of synthetic-audience research workflows in practice. deepsona.ai Article · How Founders Use AI How Synthetic Audiences Are Transforming Market Research Through AI Personas Deepsona
  20. A hands-on build of a synthetic persona interviewer, showing exactly what these systems can and cannot do. towardsdatascience.com Article · How Founders Use AI From Ad-Hoc Prompting to Repeatable AI Workflows with Claude Code Skills (synthetic persona interviews) Towards Data Science
  21. A tight five-step thread: collect where the market talks, use AI to find repeated pain, act on it. x.com Thread · How Founders Use AI The AI version of market research as a service Corey Ganim
  22. Explains the community-signal thesis behind the most popular idea-mining product. linkedin.com Thread · How Founders Use AI I'm launching ideabrowser.com (launch post) Greg Isenberg
  23. The written companion with the exact prompts and Gumloop automation steps. blog.alexanderfyoung.com Article · How Founders Use AI How I use Reddit and AI to find winning startup ideas (written version) Dr Alex Young
  24. A practical low-code version using Gumloop, n8n, or Zapier to feed comments into an LLM. medium.com Article · How Founders Use AI How to Use Reddit and AI to Find Startup Ideas That Actually Work Andiebuk (Medium)

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1046 questions GTM Go-to-market, from breaking in to how the best teams do it. 352 questions D2C Building a direct-to-consumer brand, India-first. 482 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 154 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 278 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 390 terms
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