Every resource founders actually use, in one library.

What founders use most, ranked by how many answers lean on it.

1. Four consumer investors on why subtle product choices now matter more than raw model quality. a16z.com Podcast · How Founders Use AI Where Does Consumer AI Stand at the End of 2025? a16z (Anish Acharya, Olivia Moore, Justine Moore, Bryan Kim)
2. The canonical reframe: sell the finished work, not a 15% productivity tool, and your market gets 10-50x bigger. sarahtavel.com Article · How Founders Use AI AI startups: Sell work, not software Sarah Tavel (Benchmark)
3. Tavel pressure-tests her own thesis with what she has since seen in real AI startups. sarahtavel.com Article · How Founders Use AI A few "Sell Work, Not Software" updated thoughts Sarah Tavel (Benchmark)
4. Veteran product leaders on AI at the core versus AI at the edge, the distinction most founders miss. lennysnewsletter.com Podcast · How Founders Use AI How AI is reshaping the product role | Oji and Ezinne Udezue Lenny's Podcast
5. Video · How Founders Use AI A Cheeky Pint with Intercom Cofounder Des Traynor Cheeky Pint (John Collison, Stripe)
6. The full transcript, including the memorable rule against force-feeding users AI they never asked for. cheekypint.substack.com Article · How Founders Use AI Des Traynor on reinventing Intercom and avoiding "foie gras" features Cheeky Pint (Stripe)
7. A rare honest post-mortem from a product team on which AI bets worked in production and which had to be killed. hex.tech Article · How Founders Use AI Bitter lessons building AI products Hex
8. Includes Carta's hard-won lesson on separating model behaviour from UX when shipping AI features. review.firstround.com Article · How Founders Use AI The 30 Best Pieces of Company Building Advice We Heard in 2025 First Round Review
9. Vohra applies his famous product-market-fit engine to deciding which AI features earn their place. productschool.com Podcast · How Founders Use AI Superhuman CEO on the 40% PMF Rule and AI-Native Productivity Product School (Rahul Vohra)
10. Video · How Founders Use AI Rahul Vohra on How AI Will Change the Way We Work (Upfront Summit) Upfront Ventures
11. A top consumer investor answers the exact question, drawn from hundreds of a16z Speedrun applications. x.com Thread · How Founders Use AI "Does my new startup idea need to have AI in it?" Andrew Chen (a16z)
12. A data company's candid recap of which of its own AI features users adopted and why. amplitude.com Article · How Founders Use AI What We Learned Building AI Products in 2025 Amplitude
13. A case study of an incumbent rebuilding around one AI feature that customers demonstrably pay for. bvp.com Article · How Founders Use AI How Intercom navigated the AI paradigm shift Bessemer Venture Partners
14. The sharpest counterargument you will read; know the backlash before you ship an unwanted AI feature. honest-broker.com Article · How Founders Use AI The Force-Feeding of AI on an Unwilling Public Ted Gioia (The Honest Broker)
15. A respected discovery coach documents what surprised her when she actually built an AI product herself. producttalk.org Article · How Founders Use AI Building My First AI Product: 6 Lessons from My 90-Day Deep Dive Teresa Torres (Product Talk)
16. Video · How Founders Use AI Deep Dive into LLMs like ChatGPT Andrej Karpathy
17. Video · How Founders Use AI RAG Explained For Beginners KodeKloud
18. Video · How Founders Use AI Build and Deploy a RAG Chatbot with JavaScript, LangChain.js, Next.js freeCodeCamp (Ania Kubow)
19. Free, thorough, and taught by the engineer who wrote much of LangChain's RAG tooling. freecodecamp.org Course · How Founders Use AI Learn RAG from Scratch (Python tutorial from a LangChain engineer) freeCodeCamp (Lance Martin, LangChain)
20. The follow-on course for when your prototype RAG needs to survive real users. freecodecamp.org Course · How Founders Use AI Production RAG with LangChain and Vector Databases freeCodeCamp
21. The primary source for letting the model trigger your app's actions, the step from chatbot to feature. developers.openai.com Guide · How Founders Use AI Function calling (OpenAI API docs) OpenAI
22. Guaranteed-JSON responses ended a whole class of parsing bugs; read this before writing a parser. openai.com Article · How Founders Use AI Introducing Structured Outputs in the API OpenAI
23. The most popular TypeScript toolkit for streaming AI features, with 25+ providers behind one API. github.com Tool · How Founders Use AI Vercel AI SDK Vercel
24. Free structured course covering prompting, extraction, streaming, and tool calls in real product code. vercel.com Course · How Founders Use AI Builders Guide to the AI SDK Vercel Academy

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