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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. OpenAI's India education programme with IIT Madras and AICTE, and why study mode was shaped by Indian learners. openai.com Article · How Founders Use AI Introducing the OpenAI Learning Accelerator in India OpenAI
  2. Harvard's free introduction to programming, built for people who have never coded before. cs50.harvard.edu Course · How Founders Use AI CS50x 2026 Harvard University (David J. Malan)
  3. The course's AI rule: its own CS50 Duck is allowed, other assistants that complete answers are not. cs50.harvard.edu Guide · How Founders Use AI CS50x Academic Honesty Harvard University
  4. The CS50 Duck, a tutor built on ChatGPT that guides students rather than handing over solutions. cs50.ai Tool · How Founders Use AI CS50.ai Harvard CS50
  5. How a verified student on GitHub Education gets Copilot's features at no cost. docs.github.com Guide · How Founders Use AI Access GitHub Copilot for free as a student GitHub Docs
  6. Video · How Founders Use AI How To Learn To Code In 2026 Tina Huang
  7. The EEG study of 54 essay writers, a preprint not yet peer reviewed, which is worth reading past the headlines. arxiv.org Article · How Founders Use AI Your Brain on ChatGPT: Accumulation of Cognitive Debt when Using an AI Assistant for Essay Writing Task Nataliya Kosmyna and others (MIT Media Lab)
  8. The CHI 2025 survey of 319 knowledge workers linking confidence in AI to less critical thinking. microsoft.com Article · How Founders Use AI The Impact of Generative AI on Critical Thinking: Self-Reported Reductions in Cognitive Effort and Confidence Effects From a Survey of Knowledge Workers Hao-Ping Lee, Advait Sarkar and others (Microsoft Research and Carnegie Mellon)
  9. An analysis of a million student conversations, split between asking for answers and working through problems together. anthropic.com Article · How Founders Use AI Anthropic Education Report: How university students use Claude Anthropic
  10. OpenAI's minimum age of 13, the parental consent rule up to 18, and advice for classroom use. help.openai.com Guide · How Founders Use AI Is ChatGPT safe for all ages? OpenAI Help Center
  11. Every setting a linked parent can change, from quiet hours and study hours to safety notifications. help.openai.com Guide · How Founders Use AI Managing parental controls in ChatGPT OpenAI Help Center
  12. The launch post, updated in July 2026 to widen when parents are notified. openai.com Article · How Founders Use AI Introducing parental controls OpenAI
  13. How a parent turns Gemini on or off for a child under 13 in Family Link, and the extra filters minors get. support.google.com Guide · How Founders Use AI Guide your child's Gemini Apps experience Gemini Apps Help
  14. The country table: 13 everywhere not listed, which includes India. support.google.com Guide · How Founders Use AI Age requirements on Google Accounts Google Account Help
  15. Anthropic's terms, which require Claude.ai users to be at least 18. anthropic.com Guide · How Founders Use AI Consumer Terms of Service Anthropic
  16. Meta's teen AI rules, updated in January 2026 to pause teens' access to AI characters. about.fb.com Article · How Founders Use AI Empowering Parents, Protecting Teens: Meta's Approach to AI Safety Meta
  17. Video · How Founders Use AI How To Set Up ChatGPT for Teens (Parental Controls & Study Hours) Think Tutorial
  18. Video · How Founders Use AI Guided Learning in Gemini | AI Playbook for Parents Google for Education
  19. Sets out four moments an agent should come back to a person: approval, expertise, a fresh view, and decisions worth making... oneusefulthing.org Article · How Founders Use AI Agency and Agents Ethan Mollick (One Useful Thing)
  20. Podcast · How Founders Use AI OpenAI's Dots lead on the future of ChatGPT Sources Podcast (Alex Heath)
  21. Podcast · How Founders Use AI How A.I. Agents Are Going to Transform Our Lives | Hard Fork Hard Fork (The New York Times)
  22. A first-hand account of living with dots and Meta's Muse, including an agent catching its owner's own mistake. oneusefulthing.org Article · How Founders Use AI The Dot and the Swarm Ethan Mollick (One Useful Thing)
  23. Video · How Founders Use AI Claude Cowork and chat are now one Claude Claude (Anthropic)
  24. Video · How Founders Use AI I Tested OpenAI's New Personal Assistant Agent: DOTS Futurepedia

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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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