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. Survey data on how many people now use ChatGPT, Perplexity and Gemini to find information, and how far their trust in those... reutersinstitute.politics.ox.ac.uk Article · How Founders Use AI Digital News Report 2026: Overview and key findings Reuters Institute for the Study of Journalism In 3 answers
  2. Shows how to hand Claude a whole report or deck from a conversation and let it keep working after you close the laptop. claude.com Article · How Founders Use AI Claude Cowork and chat are now one Claude Anthropic In 3 answers
  3. Google's own note on the rename: the same product, notebooks synced with the Gemini app, and code that runs over your sources... blog.google Article · How Founders Use AI NotebookLM is now Gemini Notebook Google In 3 answers
  4. 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
  5. HeyGen's own write-up of cloning your voice so it fits the scene a digital twin is placed in, with listening samples. heygen.com Article · How Founders Use AI HeyGen Voice: Scene-Aware Voice Cloning for Talking Videos HeyGen Research In 3 answers
  6. What Meta's revised Commercial Terms change: you carry the responsibility for images, translations and links its AI adds to... ppc.land Article · How Founders Use AI Meta makes advertisers solely responsible for its AI ad edits from Oct 30 PPC Land In 3 answers
  7. Usage data on ChatGPT, Gemini and Claude, including how many people use more than one and how fast Gemini and Claude grew in... a16z.com Article · How Founders Use AI The Top 100 Gen AI Consumer Apps, 6th Edition Andreessen Horowitz In 3 answers
  8. A law firm's plain summary of India's amended IT Rules: large platforms must ask users whether content is synthetic and label... hlc.com Article · How Founders Use AI India introduces mandatory labelling for AI and 3-hour takedown for illegal content Hogan Lovells In 3 answers
  9. Meta's own post: Ads Creative Studio rolling out, video from static assets generally available in Advantage+ creative, and hook... facebook.com Article · How Founders Use AI Advertising Week New York 2026: New AI Capabilities to Guide Campaigns and Reach Customers Meta In 3 answers
  10. SOLO's two AI teammates, one of which replies to WhatsApp enquiries and follows up leads, for Indian small businesses. mediabrief.com Article · How Founders Use AI Jio Haptik launches SOLO AI Platform for Small Businesses MediaBrief In 3 answers
  11. Fathom's plan table, read 10 November 2026: free forever with unlimited recordings and instant summaries, a choice of bot-free... fathom.ai Tool · How Founders Use AI Fathom pricing: free plan or plans from $15 a month Fathom In 3 answers
  12. X's own terms, which now make you responsible for any feature that performs autonomous actions on your behalf, so an agent... x.com Article · How Founders Use AI X Terms of Service (effective 9 October 2026) X In 3 answers
  13. Explains privilege and work product in plain terms and cites United States v. Heppner, where a defendant's chats with public... harvey.ai Article · How Founders Use AI The Rules of Privilege Still Apply When Lawyers use AI Harvey (its Chief Legal Officer) In 3 answers
  14. Survey of which assistants US adults use, from ChatGPT and Gemini to Copilot, Meta AI, Grok and Claude, broken down by age. pewresearch.org Article · How Founders Use AI ChatGPT tops the list of chatbots Americans use, across age groups Pew Research Center In 3 answers
  15. How to open Meta AI from the Chats tab, forward a message to it and where it is not yet available. faq.whatsapp.com Guide · How Founders Use AI How to chat with Meta AI WhatsApp Help Center In 3 answers
  16. What the free Standard tier gives, what Pro and Max add, and the student discount. perplexity.ai Guide · How Founders Use AI Which Perplexity Subscription Plan is right for you? Perplexity Help Center In 3 answers
  17. Says users in India cannot yet pay for a recurring Perplexity plan in rupees and must subscribe in US dollars. perplexity.ai Guide · How Founders Use AI Paying in Local Currency Perplexity Help Center In 3 answers
  18. OpenAI's own page on turning study mode on by web, iOS and Android, what to put in your first message, and example prompts. help.openai.com Guide · How Founders Use AI Using study mode in ChatGPT OpenAI Help Center In 3 answers
  19. The product page: source-grounded answers, Audio Overviews and an FAQ confirming it is the same product as NotebookLM. notebook.google Tool · How Founders Use AI Gemini Notebook | AI Research Tool & Thinking Partner Google In 3 answers
  20. Mollick's way to decide when to delegate (your time against the time to brief and check) and the six questions a good brief... oneusefulthing.org Article · How Founders Use AI Management as AI superpower Ethan Mollick (One Useful Thing) In 3 answers
  21. Step-by-step setup: eligibility, naming your dot, giving it tasks and reviewing what is in progress, scheduled and done. help.openai.com Guide · How Founders Use AI Getting started with your dot OpenAI Help Center In 3 answers
  22. OpenAI's page on what is used for training by default and how Temporary Chat keeps a conversation out of history and training. help.openai.com Guide · How Founders Use AI Data controls in ChatGPT OpenAI In 3 answers
  23. OpenAI's test of 2,278 questions on Indian culture in 12 languages including Hinglish, written by 261 Indian experts, and why... openai.com Article · How Founders Use AI Introducing IndQA OpenAI In 3 answers
  24. The launch report on Indus: typed or spoken questions with text and audio answers, and the limits it shipped with. techcrunch.com Article · How Founders Use AI India's Sarvam launches Indus AI chat app as competition heats up TechCrunch In 3 answers

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