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. Record your pitch and the AI listens, interrupts, and challenges assumptions like a live investor would. launch.pitchmyventure.com Tool · How Founders Use AI Pitch My Venture Pitch My Venture
  2. A presentation coach that reads facial expressions and vocal patterns, built for handling tough questions and projecting the... echopitch.io Tool · How Founders Use AI EchoPitch EchoPitch
  3. Two decades of proven model templates rebuilt around AI: start from structure that works, customize with Claude or ChatGPT,... hemrock.com Tool · How Founders Use AI Hemrock (formerly Foresight) Taylor Davidson
  4. The default choice when you want the most polished UI per prompt. v0.app Tool · How Founders Use AI v0 by Vercel Vercel
  5. The single tool where you storyboard, generate, and stitch Veo clips; over 275M videos made in it. flow.google.com Tool · How Founders Use AI Google Flow (Veo, Imagen, Gemini studio) Google Labs
  6. Sarvam's dubbing for 12 Indian languages, each speaker's voice cloned, from Rs 40 a minute, in Content Studio or by API. sarvam.ai Tool · How Founders Use AI AI Dubbing API for Indian Languages Sarvam AI
  7. Framer's agents edit pages, copy, SEO and publishing inside a live site, so landing page iterations happen by prompt. framer.com Tool · How Founders Use AI Framer Agents: AI agents for designing, updating, and improving sites Framer
  8. Current per-token prices for every GPT-6 tier, with cached input and batch rates side by side. developers.openai.com Tool · How Founders Use AI API pricing (OpenAI docs) OpenAI
  9. The CS50 Duck, a tutor built on ChatGPT that guides students rather than handing over solutions. cs50.ai Tool · How Founders Use AI CS50.ai Harvard CS50
  10. Google's page on summarising and comparing tabs, working across Gmail and Calendar, and the auto browse preview. gemini.google Tool · How Founders Use AI Gemini in Chrome: AI assistance, right in your browser Google
  11. Microsoft's page on Copilot in Edge: summarising and comparing open tabs and grouping browsing into Journeys. explore.microsoft.com Tool · How Founders Use AI Copilot in Edge Microsoft
  12. The government's Bhashini app: speech to text, translation between Indian languages, and text to speech, for talking with... play.google.com Tool · How Founders Use AI BHASHINI Digital India Bhashini Division (Google Play)
  13. The government's translation products, including Lekhaanuvaad for documents and Chitraanuvaad for video in Indian languages. bhashini.gov.in Tool · How Founders Use AI BHASHINI's Arpan Applications Digital India Bhashini Division
  14. Dubs a video into Hindi, Bengali, Tamil, Telugu and eight more languages in the original speaker's voice, with the first 30... sarvam.ai Tool · How Founders Use AI Sarvam Content Studio Sarvam AI
  15. Per-minute rupee prices for phone voice agents in 11 Indian languages and English, by monthly volume. sarvam.ai Tool · How Founders Use AI Voice Agents pricing Sarvam AI
  16. The downloadable Sarvam-105B model under Apache 2.0, for teams that want to host it themselves. huggingface.co Tool · How Founders Use AI sarvamai/sarvam-105b Sarvam AI (Hugging Face)
  17. A free plan with 25 message credits a month and up to 5 apps; paid plans from $16 a month billed annually for 100 message... base44.com Tool · How Founders Use AI Base44 plans and pricing Base44
  18. $50 of free credits that last 7 days, then Team from $29.99 a month for 3,000 credits. lindy.ai Tool · How Founders Use AI Lindy pricing Lindy
  19. The official directory of public MCP servers, the place to look before you build one. registry.modelcontextprotocol.io Tool · How Founders Use AI MCP Registry Model Context Protocol
  20. Go at $10.75 a month billed yearly for iPad and web, Pro at $33.25 with the desktop modeller and 2D documentation, and Studio... sketchup.trimble.com Tool · How Founders Use AI SketchUp plans and pricing Trimble
  21. The free and paid tiers by model: Gemini 3.8 Flash is free on the free tier ($0.75 / $3.75 per million tokens paid until 31... ai.google.dev Tool · How Founders Use AI Gemini Developer API pricing Google
  22. An AI research assistant for academic papers, with a free plan, for screening and extracting data from many studies. elicit.com Tool · How Founders Use AI Elicit pricing Elicit
  23. A tool that tracks how often ChatGPT, Perplexity and Google's AI answers mention and cite your brand against competitors. tryprofound.com Tool · How Founders Use AI Profound Profound
  24. A free page that runs your search straight into Google's Web view with no AI Overview, from the people who documented udm=14;... udm14.com Tool · How Founders Use AI &udm=14 Tedium

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