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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. The investor-grade case for why agent pricing had to change. a16z.com Article · How Founders Use AI AI Is Driving a Shift Towards Outcome-Based Pricing a16z In 3 answers
  2. Real price points: $2/conversation, $0.99/resolution, per-task AI SDRs. substack.com Thread · How Founders Use AI The most disruptive AI pricing models so far Kyle Poyar In 3 answers
  3. A candid founder-to-founder chat on making outcome pricing actually work. cheekypint.substack.com Podcast · How Founders Use AI Bret Taylor on AI agents, outcome-based pricing, and the OpenAI board Cheeky Pint (Stripe) In 3 answers
  4. Feature-by-feature walkthrough aimed at people making commerce and launch assets. shopify.com Guide · How Founders Use AI How to use Canva AI: 10 Magic Studio features Shopify In 3 answers
  5. The free-tier option: near report quality in under 3 minutes, ideal for bootstrapped founders. perplexity.ai Article · How Founders Use AI Introducing Perplexity Deep Research Perplexity In 3 answers
  6. A founder-level walkthrough from question to structured, cited market report. validatemysaas.com Guide · How Founders Use AI How to Use ChatGPT's Deep Research for Market Research Validate My SaaS In 3 answers
  7. Turns market research upside down: mine Reddit, Fiverr and search data for unmet demand. gregisenberg.com Article · How Founders Use AI Find winning startup ideas from AI and data Greg Isenberg In 3 answers
  8. A competitive-intelligence vendor is candid about where ChatGPT fails at CI. klue.com Article · How Founders Use AI How to Do Competitive Analysis with ChatGPT (And When to Avoid Using It) Klue In 3 answers
  9. The single best tactical hour on AEO, with the 6x conversion data point. podcasts.apple.com Podcast · How Founders Use AI The ultimate guide to AEO: How to get ChatGPT to recommend your product (Ethan Smith, Graphite) Lenny's Podcast In 3 answers
  10. The written playbook version if you want the tactics without the audio. lennysnewsletter.com Article · How Founders Use AI How to get ChatGPT to recommend your product (writeup) Lenny's Newsletter In 3 answers
  11. The straight answer from Anthropic, including how to toggle training off. privacy.claude.com Guide · How Founders Use AI Is my data used for model training? Anthropic In 3 answers
  12. Concrete picture of what elite AI-assisted marketing actually looks like. podcasts.apple.com Podcast · How Founders Use AI This Is How the Top 1% Marketers Are Using AI Marketing Against The Grain In 3 answers
  13. Voice injection means swapping generic claims for things only you could say. foundera.co Article · How Founders Use AI Founder Voice in the AI Era: Don't Sound Like AI Foundera In 3 answers
  14. The default tool for turning one long video into 10-20 ranked short clips. opus.pro Tool · How Founders Use AI OpusClip OpusClip In 3 answers
  15. Video · How Founders Use AI The Founder Who Automated Content Creation Using AI (Varun Mayya) Bad Decisions Podcast In 3 answers
  16. The clipping workflow: one 30-minute video into 10-20 ranked shorts. opus.pro Guide · How Founders Use AI How to Turn Long-Form Videos into YouTube Shorts at Scale OpusClip In 3 answers
  17. The written breakdown of his 60M-views-a-month avatar pipeline. sigmastory.in Article · How Founders Use AI How AI Creator Varun Mayya Has Automated Video Making Using Digital Avatars SigmaStory In 3 answers
  18. Video · How Founders Use AI Founder-Led Sales for Y Combinator Demo Day (Sam Blond) Sam Blond (ex-CRO Brex) In 3 answers
  19. Battle-tested prompts covering the full arc from ICP research to first-touch drafting. blog.hubspot.com Article · How Founders Use AI ChatGPT for sales prospecting: 10 prompts from research to outreach HubSpot In 3 answers
  20. The most complete practitioner guide to authentication, warmup, and volume pacing. smartlead.ai Guide · How Founders Use AI Email Deliverability Guide: SPF, DKIM, Warmup & Everything That Gets You to the Inbox Smartlead In 3 answers
  21. Two of SaaS's sharpest voices on which sales admin AI genuinely takes off your plate. saastr.com Article · How Founders Use AI Jason + Lenny: the real future of AI in sales SaaStr In 3 answers
  22. The model maker's own playbook, clear, ordered from most to least effective, and kept current as models change. platform.claude.com Guide · How Founders Use AI Prompt engineering overview (official Claude docs) Anthropic In 3 answers
  23. Explains why the support agent priced per outcome is now called Fin and sold inside Salesforce. salesforce.com Article · How Founders Use AI Salesforce Completes Acquisition of Fin Salesforce In 3 answers
  24. Kuaishou's launch release for Kling 4.0: up to 30 seconds in one pass, steadier fast motion and up to 15 reference assets. bernama.com Article · How Founders Use AI Kling AI Officially Launches Next-Generation Kling 4.0, Raising the Bar for Professional-Grade Video Models Kuaishou (via Bernama) In 3 answers

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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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