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. Librarian-curated prompts plus the real databases to verify AI numbers against. businesslibrary.uflib.ufl.edu Guide · How Founders Use AI AI Prompts for Market Analysis (research library guide) University of Florida Business Library
  2. A top PM voice's framework so your AI research lands in a structure that drives decisions. aakashg.com Guide · How Founders Use AI Competitive Analysis Framework Template Aakash Gupta
  3. Includes exactly how top operators use Perplexity and ChatGPT for competitor teardowns. news.aakashg.com Article · How Founders Use AI The AI PM's Playbook Aakash Gupta
  4. A clean primer with prompts for products, pricing, reviews and a comparison matrix. coursera.org Guide · How Founders Use AI How to Use ChatGPT for Competitor Analysis: Use Cases and Prompting Coursera
  5. A short course dedicated to the deep-research-for-CI workflow. aibusinessnetwork.ai Course · How Founders Use AI Use ChatGPT for Competitive Analysis: Deep Research Workflows That Save Hours AI Business Network
  6. Copy-ready deep research prompts tuned for competitor teardowns. medium.com Article · How Founders Use AI Competitor Analysis Deep Research Prompts for Documentation Balu Kosuri
  7. Covers the monitoring layer: watching pricing pages, job posts and launches automatically. unkover.com Guide · How Founders Use AI AI Competitive Intelligence: How to Use AI for CI Unkover
  8. Type a product URL, get a structured competitor matrix in minutes; a fast first pass. competely.ai Tool · How Founders Use AI Competely: Instant AI competitive analysis Competely
  9. Video · How Founders Use AI How I Spy on Competitors (Legally) Using AI YouTube operator
  10. Video · How Founders Use AI This Tool Shows You How To Spy on Your Competitors in AI Search Semrush
  11. Focused on mining competitors' social presence and share of voice with AI. sociality.io Guide · How Founders Use AI Competitive analysis with ChatGPT (AI in social media strategy) Sociality.io
  12. A founder-specific mega-prompt that outputs a complete CI document. aiforwork.co Guide · How Founders Use AI Create A Competitor Analysis Document with ChatGPT (prompt included) AI for Work
  13. An investor's view of what competitive analysis must prove in a fundraise. qubit.capital Article · How Founders Use AI Market Research & Competitive Analysis for Startups Qubit Capital
  14. Includes the famous sub-$20/month founder stack: BuiltWith alerts, Visualping diffs, Slack. buildmvpfast.com Article · How Founders Use AI AI Competitive Intelligence Tools for Market Monitoring BuildMVPFast
  15. A free-to-start tool built specifically for solo founders' competitor scans. founderpal.ai Tool · How Founders Use AI AI Competitor Analysis for Busy Founders FounderPal
  16. The continuous-discovery authority draws the precise line between AI leverage and AI damage. producttalk.org Article · How Founders Use AI Customer Interview Analysis: Where AI Helps and Hurts Teresa Torres
  17. Video · How Founders Use AI Teresa Torres on continuous discovery in B2B, AI prototypes, and synthetic personas Teresa Torres interview
  18. The foundational interviewing craft your AI synthesis is only as good as. open.spotify.com Podcast · How Founders Use AI Teresa Torres on how to interview customers (Lenny's Podcast) Lenny Rachitsky
  19. The credibility-stamped case for AI-scaled qual research, useful for convincing skeptics. hbr.org Article · How Founders Use AI How AI Helps Scale Qualitative Customer Research Harvard Business Review
  20. A design studio benchmarks the tools against human researchers and reports the gaps. ustwo.com Article · How Founders Use AI Putting AI customer research tools to the test ustwo
  21. The definitive tool map from recruiting through synthesis, updated regularly. userinterviews.com Guide · How Founders Use AI 30+ AI Tools for Every Phase of UX Research User Interviews
  22. Survey data on how teams actually use AI in synthesis and the time it saves. lyssna.com Article · How Founders Use AI Research Synthesis Report 2025: AI, Methods & Time Investment Lyssna
  23. An honest map of what AI moderation matches humans on and what it cannot do. getperspective.ai Article · How Founders Use AI AI-Moderated Interviews: How They Work, When to Use Them, and What They Replace Perspective AI
  24. Video · How Founders Use AI 24 Hours Inside a YC AI Startup (Outset) Y Combinator

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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