Every resource founders actually use, in one library.

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

1. A clear decision framework for the exact moment every founder faces: bolt on AI, ignore it, or rethink the product. founderprompts.com Article · How Founders Use AI "Should we add AI?" Here is how to decide Vasil (Founder Prompts)
2. The UX research heavyweights on why novelty chatbots harm products and what user value actually looks like. nngroup.com Article · How Founders Use AI AI Features Must Solve Real User Problems Nielsen Norman Group
3. A blunt scorecard of which AI product ideas changed user behaviour and which quietly flopped. a16z.com Article · How Founders Use AI State of Consumer AI 2025: Product Hits, Misses, and What's Next a16z
4. 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)
5. 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)
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. 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)
10. 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
11. 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
12. 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)
13. 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)
14. 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)
15. 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
16. 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
17. 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
18. 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
19. Six practitioners condense a year of production LLM scar tissue into tactical advice. oreilly.com Article · How Founders Use AI What We Learned from a Year of Building with LLMs (Part I) Eugene Yan, Hamel Husain, Jason Liu, Shreya Shankar, et al.
20. The whole LLM-product stack in one thread; a map of every decision you will eventually face. x.com Thread · How Founders Use AI Patterns for LLM systems: evals, RAG, fine-tuning, caching, guardrails Eugene Yan (Anthropic)
21. The most-read O'Reilly book of 2025; the reference text once you outgrow tutorials. oreilly.com Guide · How Founders Use AI AI Engineering: Building Applications with Foundation Models Chip Huyen
22. An India-based walkthrough from API key to working app, aimed at non-ML developers. analyticsvidhya.com Guide · How Founders Use AI Build Your First LLM Application: A Beginner's Tutorial Analytics Vidhya
23. The gentlest possible on-ramp if your team writes Python but has never called a model API. machinelearningmastery.com Guide · How Founders Use AI Your First OpenAI API Project in Python, Step-By-Step Machine Learning Mastery
24. A CPO livebuilds a real feature with AI tools, showing how fast the idea-to-ship loop has become. creatoreconomy.so Article · How Founders Use AI From Idea to Product in 30 Min Using AI Agents | Claire Vo Peter Yang (Creator Economy) with Claire Vo

Show the next 24