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.
- A tested roundup of the specialist writing tools (Jasper, Anyword, Writer and others), each with who it suits and its price. zapier.com Article · How Founders Use AI The 6 best AI writing generators in 2026 Zapier
- The scaled content abuse policy in full, so you know where AI-assisted publishing crosses the line. developers.google.com Guide · How Founders Use AI Spam policies for Google web search Google Search Central
- What the $99-a-month toolkit tracks: prompts, brand performance and mentions in AI answers; no free trial. semrush.com Guide · How Founders Use AI AI Visibility Toolkit Semrush
- Hands-on picks with prices: ElevenLabs as the all-in-one choice (from $6 a month), Hume Octave for designing a voice from a... zapier.com Article · How Founders Use AI The 8 best AI voice generators in 2026 Zapier (Miguel Rebelo)
- How to edit a photo in Google Photos by describing the change, and where the feature is available so far. support.google.com Guide · How Founders Use AI Use Ask Photos to search, edit and get assistance Google
- Hands-on picks with prices: Photoshop for full-featured editing (from $19.99 a month), Luminar ($129 perpetual licence), Canva,... zapier.com Article · How Founders Use AI The best AI photo editors in 2026 Zapier (Harry Guinness)
- YouTube's own specification: 3840 x 2160 for videos and 2160 x 3840 for Shorts, a 640-pixel minimum, JPG or PNG, the file-size... support.google.com Guide · How Founders Use AI Add custom thumbnails on YouTube YouTube
- How to test up to 3 titles or thumbnails in YouTube Studio; the one with the highest watch time is shown to everyone, and who... support.google.com Guide · How Founders Use AI A/B test titles and thumbnails YouTube
- Ideogram's image models, built to get the words in an image right; every plan, free included, can use all of them. docs.ideogram.ai Guide · How Founders Use AI Ideogram models Ideogram
- Flow Music's core features are free; Google AI Plus, Pro and Ultra members get its Starter, Plus and Member plans. support.google.com Guide · How Founders Use AI Manage your AI credits and Google Flow Music plan Google
- YouTube's free library of royalty-free production music and sound effects, copyright-safe for your YouTube videos, found in... support.google.com Guide · How Founders Use AI Use music and sound effects from the Audio Library YouTube
- How to scan yourself with a phone to make an avatar with your own visual and audio likeness, call it into any shot with @me,... support.google.com Guide · How Founders Use AI Create and use your avatar in Google Flow Google
- How YouTube adds translated audio tracks to your videos, who is eligible, and how to review a dub before it goes live. support.google.com Guide · How Founders Use AI Use automatic dubbing YouTube
- YouTube's inauthentic content rule: mass-produced, generic or repetitive videos are not eligible for monetisation, the line... support.google.com Guide · How Founders Use AI YouTube channel monetization policies YouTube
- The free, open-source painting program's own guide to frame-by-frame animation, starting with a walk cycle. docs.krita.org Guide · How Founders Use AI Animation with Krita Krita
- Runway's own video model, which it says ranked first on the Artificial Analysis text-to-video benchmark at launch. runway.com Article · How Founders Use AI Introducing Runway Gen-4.5 Runway
- The model for editing existing video: adding, removing and transforming objects, generating new angles of a scene, and changing... runway.com Article · How Founders Use AI Introducing Runway Aleph Runway
- Who Runway is, its research into world models, and its offices in New York, San Francisco, London, Tokyo and elsewhere. runway.com Article · How Founders Use AI About Runway Runway
- An independent report on the Gen-4.5 launch and where Runway stands against the big labs. cnbc.com Article · How Founders Use AI Runway rolls out Gen-4.5 AI video model that beats Google, OpenAI CNBC
- How to ask Gemini to find a video and summarise it, the setting it needs, and what it cannot do with your YouTube account. support.google.com Guide · How Founders Use AI Find and ask about YouTube content in Gemini Apps Google
- YouTube's built-in Ask feature for questions about the video you are watching: who can use it, on which devices, and its limits. support.google.com Guide · How Founders Use AI Ask YouTube on the watch page YouTube
- Which plans include Notion AI (Business and Enterprise), how Notion credits are spent, and how your data is handled. notion.com Guide · How Founders Use AI Notion AI FAQs Notion Help Center
- OpenAI's tool that rewrites a prompt to current best practice in the API dashboard; the page notes the dataset-backed optimizer... developers.openai.com Guide · How Founders Use AI Prompt optimizer OpenAI
- Three experiments on AI and ideas: GPT-4 produced 35 of the 40 best-rated product ideas against Wharton students, with the... oneusefulthing.org Article · How Founders Use AI Automating Creativity Ethan Mollick (One Useful Thing)
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 →