Explore
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.
- Hard evidence that half the 'better AI' effect is the user's prompting skill, the clearest answer to why identical tools... mitsloan.mit.edu Article · How Founders Use AI Study: Generative AI results depend on user prompts as much as models MIT Sloan (Ideas Made to Matter)
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Video · How Founders Use AI
The Skill That Separates AI Power Users From Everyone Else (Why "Clear" Specs Produce Broken Output)
Nate B Jones (AI News & Strategy Daily)
- Data from OpenAI's own enterprise usage showing the gap is behavioral, not access, everyone has the same tools, few use them... venturebeat.com Article · How Founders Use AI OpenAI report reveals a 6x productivity gap between AI power users and everyone else VentureBeat
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Video · How Founders Use AI
AI prompt engineering in 2025: What works and what doesn't | Sander Schulhoff
Lenny's Podcast
- A practitioner's deep-dive with real examples from AI companies like Bolt, separating research-backed techniques from folklore. news.aakashg.com Article · How Founders Use AI Prompt Engineering in 2025: The Latest Best Practices Aakash Gupta (Product Growth)
- Rare empirical test of popular techniques against a current model, shows which tips are measurable wins and which are myths. dreamhost.com Article · How Founders Use AI We Tested 25 Popular Claude Prompt Techniques: These 5 Actually Work Brian Andrus (DreamHost)
- A top VC walks through a real founder's Claude Project setup, a concrete, copyable example of putting business context into an... sarahtavel.com Article · How Founders Use AI Getting started with Claude Projects: Starting the day off right Sarah Tavel (Benchmark)
- A billion-dollar founder shares his exact custom-instruction templates so ChatGPT permanently knows who you are and how you work. simple.ai Article · How Founders Use AI The ChatGPT Feature 90% of Users Ignore (But Shouldn't) Dharmesh Shah (simple.ai / HubSpot co-founder)
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Video · How Founders Use AI
Creating a contextual workspace in ChatGPT
OpenAI
- Explains what ChatGPT remembers about you, how to view and edit it, and how to keep sensitive business info out, essential... help.openai.com Guide · How Founders Use AI Memory FAQ OpenAI Help Center
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Video · How Founders Use AI
ChatGPT vs Claude vs Gemini: The Best AI for Each Use Case in 2025
Peter Yang (Creator Economy)
- A first-person, three-tool workflow (with the actual prompts) that shows the mature answer to "which AI?": use each for the... tomsguide.com Article · How Founders Use AI How I use Claude for strategy, Gemini for research and ChatGPT for 'the grind' Amanda Caswell, Tom's Guide
- An AI-native startup team stress-tests every major model release on real work within days; bookmark it and you never need to... every.to Guide · How Founders Use AI Vibe Check, Every's hands-on reviews of each new frontier model Dan Shipper and the Every team
- A bootstrapped indie founder itemizes his real stack with actual prices ($73-205/month all-in), showing you can run a whole... superframeworks.com Guide · How Founders Use AI The Solopreneur AI Stack Costs Under $200/Month, Here's What's In It Ayush Chaturvedi (Superframeworks)
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Video · How Founders Use AI
How I AI: Zapier's CEO shares his personal AI stack (Wade Foster)
Claire Vo, How I AI (Lenny's network)
- A seven-category head-to-head of the two subscriptions most founders debate first, with a clear verdict framework: depth of... tomsguide.com Article · How Founders Use AI Claude Pro vs ChatGPT Plus, I tested both subscriptions to see which one's actually worth $20 Amanda Caswell, Tom's Guide
- A useful contrarian take from a daily user of all four: keep the generous free tiers for most tools and pay for only the one... xda-developers.com Article · How Founders Use AI I use ChatGPT, Claude, Perplexity, and Gemini daily, here's the only one worth paying for Mahnoor Faisal, XDA Developers
- A working engineer's system for filtering AI noise, stick to primary sources and a short list of trustworthy people, from an... blog.nilenso.com Article · How Founders Use AI How I keep up with AI progress Atharva Raykar (nilenso, Bangalore)
- Gives five concrete filters you can apply to any shiny new tool, start from work friction, go deep on one tool for a week, the... chriskobar.medium.com Article · How Founders Use AI You Can't Keep Up With AI. Nobody Can. Here's What to Do Instead. Christopher Kobar
- A named 15-minutes-a-day source list (AI Daily Brief, Ethan Mollick, Ben's Bites, Nate B. Jones) you can copy wholesale instead... smithstephen.com Article · How Founders Use AI You Asked How I Keep Up With AI. Here's the Honest Answer. Stephen Smith (Intelligence by Intent)
- The highest-signal way to discover tools: watch a founder or operator demo a workflow that already works in production, then... youtube.com Podcast · How Founders Use AI How I AI, podcast where operators screen-share real AI workflows Claire Vo (Lenny's network)
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Video · How Founders Use AI
AI as Your New Strategic Thought Partner, Jeremy Utley (Stanford)
Jeremy Utley on Proof of Work: Applied AI Case Studies
- First-person, very fresh walkthrough of using AI as a sparring partner, devil's advocacy, blind-spot hunting, and... wondertools.substack.com Article · How Founders Use AI Five Useful AI Tactics to Sharpen Your Thinking Every Day Jeremy Caplan (Wonder Tools)
- A real operator demos turning Claude into a research and thinking assistant over 1,500 of his own notes, thinking-partner use... every.to Podcast · How Founders Use AI How to Use Claude Code as a Second Brain Dan Shipper with Noah Brier (Every, AI & I)
The hubs
Starting Up
Find an idea, validate it, build, and land your first customers.
GTM
Go-to-market, from breaking in to how the best teams do it.
D2C
Building a direct-to-consumer brand, India-first.
Wealth
Paying yourself, ESOPs, secondaries, and de-risking founder wealth.
How Founders Use AI
How founders actually put AI to work, mapped topic by topic.
Glossary
Plain-language definitions of the startup and VC terms you'll hit.
eChai Partner Brands
The partnership →