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. A writing tool built for fiction: the Hobby & Student plan is $10 a month, with larger plans at $22 and $44 for novels and... sudowrite.com Tool · How Founders Use AI Sudowrite pricing Sudowrite In 2 answers
  2. Adobe's generator, with a free plan of daily generations across video, image and audio, models it calls commercially safe... adobe.com Tool · How Founders Use AI Adobe Firefly Adobe In 2 answers
  3. Google's image models for making and editing pictures by conversation in the Gemini app, from the fast Nano Banana 2 Lite to... deepmind.google Tool · How Founders Use AI Nano Banana: Gemini image models Google DeepMind In 2 answers
  4. Spells out that imitating any living person's voice without their explicit and informed consent is not allowed, the rule to... elevenlabs.io Guide · How Founders Use AI ElevenLabs prohibited use policy ElevenLabs In 2 answers
  5. The same free editor on Android. play.google.com Tool · How Founders Use AI Snapseed (Google Play) Google In 2 answers
  6. Google's step-by-step for making a clip from a prompt, from ingredients, or from a start and end frame, including how to... support.google.com Guide · How Founders Use AI Create videos in Google Flow Google In 2 answers
  7. YouTube's rule that realistic AI content must be disclosed with the AI use setting at upload, with examples of what needs a... support.google.com Guide · How Founders Use AI Disclosing use of altered or synthetic content YouTube In 2 answers
  8. YouTube's own list of its AI tools for creators: Veo in Shorts for free clips with sound, Ask Studio, title A/B tests, the... blog.youtube Article · How Founders Use AI Made on YouTube 2025: new AI and creator tools YouTube In 2 answers
  9. Free forever with limited AI summaries, Pro $10 a seat a month billed yearly ($18 monthly), Business $19; transcription in 100+... fireflies.ai Tool · How Founders Use AI Fireflies pricing Fireflies.ai In 2 answers
  10. Basic free with 300 transcription minutes a month and live transcription; Pro from $8.49 a user a month billed yearly ($16.99... otter.ai Tool · How Founders Use AI Otter pricing Otter.ai In 2 answers
  11. OpenAI's guide to prompting the GPT-6 family: give domain context, constraints and success criteria rather than every step, and... developers.openai.com Guide · How Founders Use AI Using GPT-6 OpenAI In 2 answers
  12. Gems become skills for personal accounts from November 2026: reusable instructions you call with / in any chat. support.google.com Guide · How Founders Use AI About the transition from Gems to skills Google Gemini Help In 2 answers
  13. A tested map of AI tools by job (chatbots, automation, search, content, meetings) to fill in once the first three jobs work. zapier.com Article · How Founders Use AI The best AI productivity tools in 2026 Zapier In 2 answers
  14. Google's student offer as shown in India: a student plan at no cost for 1 year, with higher limits, 400 GB of storage and video... gemini.google Tool · How Founders Use AI Gemini for students Google In 2 answers
  15. Google's steps to make Gemini your Android assistant (Google app as default assist app, then power button or 'Hey Google'), and... support.google.com Guide · How Founders Use AI Get started with the Gemini mobile app Google Gemini Help In 2 answers
  16. Perplexity's plan page: Pro $17 a month billed yearly and Max $167 a month billed yearly, with the choice of models from... perplexity.ai Tool · How Founders Use AI Perplexity Pro and Max Perplexity In 2 answers
  17. The US plans: Microsoft 365 Personal $9.99 a month, Family $12.99, Premium $19.99 with the advanced Copilot features, Pro $99.99. microsoft.com Tool · How Founders Use AI Microsoft Copilot plans for individuals Microsoft In 2 answers
  18. The Chrome extension on paid plans that lets Claude read a page and act on it (click, type, fill forms) with your own logins. claude.com Tool · How Founders Use AI Claude in Chrome Anthropic In 2 answers
  19. Clipchamp's subtitle feature: AI transcribes the audio, you edit the words and style the font, colour and position, then... clipchamp.com Tool · How Founders Use AI Auto subtitle generator Microsoft Clipchamp In 2 answers
  20. How to add, upload or type subtitles for your own video in YouTube Studio, the step after automatic captions have been generated. support.google.com Article · How Founders Use AI Add subtitles and captions YouTube Help In 2 answers
  21. A free, open-source subtitle editor for Windows and macOS: create, time and fix subtitle files on your own computer, so the... github.com Tool · How Founders Use AI Subtitle Edit Subtitle Edit (open source) In 2 answers
  22. OpenAI's own page: documents and images upload on every plan, but audio uploads are for paid plans only, with files up to 512 MB. help.openai.com Article · How Founders Use AI Uploading files and audio to ChatGPT OpenAI Help Center In 2 answers
  23. Apple's steps for typing into form fields, adding a text box when a form will not take typing, and creating a signature with... support.apple.com Article · How Founders Use AI Fill out and sign PDF forms in Preview on Mac Apple Support In 2 answers
  24. Says plainly that Preview cannot edit a PDF's existing text, and lists its markup tools, including Redaction Selection for... support.apple.com Article · How Founders Use AI Annotate a PDF in Preview on Mac Apple Support In 2 answers

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