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.
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Video · How Founders Use AI
Perplexity CEO explains RAG: Retrieval-Augmented Generation
Lex Fridman
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Video · How Founders Use AI
Nikhil Kamath ft. Perplexity CEO Aravind Srinivas | WTF Online Ep 1
Nikhil Kamath (WTF)
- The Wharton professor's definitive framing of the shift from searching for links to delegating research. oneusefulthing.org Article · How Founders Use AI The End of Search, The Beginning of Research Ethan Mollick
- The primary source on how ChatGPT blends live web results with a conversational interface. openai.com Article · How Founders Use AI Introducing ChatGPT search OpenAI
- Google's CEO pressed hard on what AI answers do to the web, straight from the incumbent's mouth. podcasts.apple.com Podcast · How Founders Use AI Google's Sundar Pichai on AI-powered search and the future of the web (Decoder) Nilay Patel, The Verge
- A hands-on, regularly updated comparison of the two tools founders reach for first. zapier.com Article · How Founders Use AI Perplexity vs. ChatGPT: Which AI tool is better? Zapier
- Side-by-side query tests that show concretely when AI search saves time and when Google still wins. felloai.com Article · How Founders Use AI Google Search vs. Perplexity: The Best Search Tool for Daily Use in 2025 Fello AI
- A structured teardown of how the answer-engine experience differs from the link-list experience. llmrefs.com Article · How Founders Use AI Perplexity vs Google: A Head-to-Head SEO and UX Analysis LLMrefs
- The official quick-start covering Search, Research and Labs modes so you use the right one per task. perplexity.ai Guide · How Founders Use AI Getting Started with Perplexity Perplexity
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Video · How Founders Use AI
How To Use Perplexity AI For Research - Terrifyingly SMART!
AI educator (YouTube)
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Video · How Founders Use AI
How to Use Perplexity AI 2025 (Step by Step Tutorial for Beginners)
YouTube tutorial
- The India moment for AI search: Perplexity Pro bundled free for Airtel users, worth checking if you qualify. airtel.in Article · How Founders Use AI Airtel partners with Perplexity: Pro for 360mn customers Airtel
- Why web-grounded Claude changed the calculus for founders who prefer Claude's reasoning. venturebeat.com Article · How Founders Use AI Anthropic just gave Claude a superpower: real-time web search VentureBeat
- OpenAI's own India-focused session on replacing search with ChatGPT's research stack. academy.openai.com Video · How Founders Use AI ChatGPT for Research: Web Search, Deep Research & Code (OpenAI Academy India) OpenAI Academy India
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Video · How Founders Use AI
Introduction to Deep Research (launch demo from Tokyo)
OpenAI
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Video · How Founders Use AI
OpenAI's Deep Research Agent in 8 Minutes
YouTube explainer
- The official how-to including query limits per plan, so you spend your monthly runs wisely. help.openai.com Guide · How Founders Use AI Deep research in ChatGPT (Help Center) OpenAI
- Google's launch post explaining the plan-approve-refine flow Gemini pioneered. blog.google Article · How Founders Use AI Try Deep Research and our new experimental model in Gemini Google
- Short official playbook on editing the research plan and asking for report revisions. blog.google Guide · How Founders Use AI How to use Google's Deep Research: official tips Google
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Video · How Founders Use AI
No Priors Ep. 112: OpenAI Deep Research with Isa Fulford
No Priors (Sarah Guo, Elad Gil)
- Isa Fulford and Josh Tobin on what the agent is actually good and bad at, from the source. sequoiacap.com Podcast · How Founders Use AI OpenAI's Deep Research on Training AI Agents End-to-End (Training Data) Sequoia Capital
- A widely shared operator thread: use a strong model to write your deep research prompt first. x.com Thread · How Founders Use AI How I'm using Deep Research (prompting walkthrough) BuccoCapital Bloke
- A fill-in-the-blanks system that reliably turns vague questions into report-grade briefs. ahmadosman.com Guide · How Founders Use AI My Ultimate DeepResearch Prompt Builder Template Ahmad Osman
- A living library of proven deep research prompts across OpenAI, Gemini and Qwen. github.com Tool · How Founders Use AI awesome-deep-research-prompts (GitHub) LangGPT community
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.