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. The enterprise avatar pioneer on what businesses actually use avatars for. accel.com Podcast · How Founders Use AI Synthesia's Victor Riparbelli on harnessing AI's benefits and reducing harm Accel, Spotlight On
  2. Accessible tour of avatar upside and risk you can share with a non-technical cofounder. open.spotify.com Podcast · How Founders Use AI How AI digital doppelgangers could change how we communicate The TED AI Show
  3. Synthesia's CEO on model wars and why the application layer wins in avatar video. thetwentyminutevc.com Podcast · How Founders Use AI Victor Riparbelli on 20VC The Twenty Minute VC
  4. Candid founder interview including the enterprise pivot that made avatars a business. upstartsmedia.com Article · How Founders Use AI Synthesia's Victor Riparbelli On AI Video, Fringe Ideas, And Startup Lies Upstarts Media
  5. Video · How Founders Use AI Create Videos with Custom Avatars in Minutes | Full HeyGen Guide YouTube tutorial
  6. Practitioner review with real ROAS numbers from AI-actor campaigns. ecomrepublic.com Article · How Founders Use AI Arcads: The AI UGC Generator That's Replacing Human-Made Ad Creative Ecom Republic
  7. An influencer-marketing agency explains when AI UGC beats real creators and when it doesn't. inbeat.agency Guide · How Founders Use AI AI UGC Ads: The Future of Content Creation in Advertising inBeat Agency
  8. India-specific costs (about Rs 1,700 per video) and Hindi/Hinglish lip-sync realities. truefan.ai Guide · How Founders Use AI The Ultimate Guide to AI UGC Video Creator India TrueFan AI
  9. A product leader clones herself live, uncanny moments included, so you know what to expect. podcasts.apple.com Podcast · How Founders Use AI Gemini Omni: Clone yourself with AI in under 15 minutes How I AI (Claire Vo)
  10. Conference-distilled practical framing of avatar video for marketing teams. marketingaiinstitute.com Article · How Founders Use AI How to Harness AI for Video Creation with Joshua Xu Marketing AI Institute
  11. Independent European tech press stress-tests the avatar category leader. sifted.eu Podcast · How Founders Use AI Can anything stop Synthesia? Sifted (Financial Times)
  12. The definitive founder interview on where voice AI is going and how ElevenLabs stays ahead. sequoiacap.com Podcast · How Founders Use AI ElevenLabs' Mati Staniszewski: Why voice will be the interface Sequoia Training Data
  13. Covers text-to-speech, licensed AI music, and voice agents in one founder-friendly sweep. podcasts.apple.com Podcast · How Founders Use AI ElevenLabs CEO: Why Voice is the Next AI Interface The a16z Show
  14. Two of Europe's fastest AI founders compare notes on building on moving model ground. sequoiacap.com Podcast · How Founders Use AI Scaling AI Rocketships: ElevenLabs' Mati & Lovable's Anton Sequoia Capital
  15. Emotion and multilingual UX in voice, the details that decide if your audio feels human. pigment.com Podcast · How Founders Use AI Voice & AI: Mati Staniszewski on Perspectives Perspectives (Pigment)
  16. The business behind the voice tool you are about to depend on. open.spotify.com Podcast · How Founders Use AI Mati Staniszewski: $11bn valuation and $330m ARR Scaling Europe
  17. Clean written setup guide including the audio-quality requirements that make or break a clone. xray.tech Guide · How Founders Use AI ElevenLabs Voice Clone Tutorial: Step-by-Step Setup XRAY.tech
  18. Video · How Founders Use AI ElevenLabs Voice Cloning Tutorial Made Simple YouTube tutorial
  19. Creator-perspective guide covering narration workflows beyond the basic clone. feisworld.com Guide · How Founders Use AI ElevenLabs Tutorial: Voice Cloning Step-by-Step Guide Feisworld Media
  20. Video · How Founders Use AI Mikey Shulman answers your questions about Suno and making music with AI Lightspeed Venture Partners
  21. How music LLMs work, explained for builders, plus honest limits. open.spotify.com Podcast · How Founders Use AI Inside Suno, the AI Music App You Won't Stop Listening To Behind the Craft (Peter Yang)
  22. The engineering story behind AI music, useful before you rely on it commercially. amplifypartners.com Article · How Founders Use AI How Suno Builds AI That Creates Music Barrchives (Amplify Partners)
  23. The industry-side view, including the licensing questions founders should track. open.spotify.com Podcast · How Founders Use AI How Suno's AI Is Disrupting the Music Industry w/ Mikey Shulman Billboard On The Record
  24. The fastest way to turn your docs and decks into listenable audio content. forbes.com Article · How Founders Use AI How To Create An AI Podcast About Anything In Seconds With NotebookLM Roger Dooley, Forbes

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1327 questions GTM Go-to-market, from breaking in to how the best teams do it. 379 questions D2C Building a direct-to-consumer brand, India-first. 512 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 165 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 360 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 425 terms