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Lenny Rachitsky
@lennysan
Deeply researched product, growth, and career advice
Bay Area, CA
linktr.ee/lennyspodcast
Joined August 2007
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    Lenny Rachitsky
    @lennysan
    Jun 30
    🚨 Announcement: I’ve co-developed a live course with my frequent collaborator and new Head of Education, Colin Matthews. It's called Become an AI-Native Builder, and you'll learn how to use the latest AI tools—including Codex, Claude Code, Cursor, and other popular AI tools—in
    45K
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    Lenny Rachitsky
    @lennysan
    Nov 12, 2022
    Matt Mochary has been CEO coach to @naval, the founders of OpenAI, Notion, Rippling, Robinhood, Coinbase, Reddit, Plaid, Flexport, Opendoor, partners at Sequoia, YC, Benchmark, and many others. He also open-sourced his entire curriculum, templates and all. Here's a link 👇
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    Lenny Rachitsky
    @lennysan
    Feb 10, 2025
    The @duolingo team just published their internal handbook sharing how they build product, hire, experiment, and build a brand around "wholesome and unhinged" 🤣👏👌 Lots of good ideas to borrow/steal for your own team. Check it out: blog.duolingo.com/handbook/
    1.5M
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    Lenny Rachitsky
    @lennysan
    Feb 1, 2025
    "The only people who’ll remember you worked late are your kids.”
    887K
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    Lenny Rachitsky
    @lennysan
    Aug 5, 2022
    Compelling read (via @tferriss 5-bullet friday) on how influencers become brainwashed by their audiences. e.g. "Nicholas Perry when he first started making mukbang videos. Bottom: Perry transformed by his audience’s desires into Nikocado". → gurwinder.substack.com/p/the-perils-o…
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    Lenny Rachitsky
    @lennysan
    Sep 20, 2025
    Super underrated book for founders
    543K
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    Lenny Rachitsky
    @lennysan
    Jul 11, 2022
    My biggest surprises from researching how 50 of today's biggest consumer companies came up with their startup idea: 1. Only 1 company came up with their idea by talking to customers (@DoorDash) 2. Only ~30% of ideas came from founders trying to solve their own problem More 👇
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    Lenny Rachitsky
    @lennysan
    Jan 25, 2022
    I’ve now angel invested in 140+ companies. Here's what's most surprised me about angel investing so far 🧵
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    Lenny Rachitsky
    @lennysan
    May 13, 2021
    Eight ways to make money: 1. Sell a thing 2. Rent a thing 3. Take a cut 4. Charge a subscription 5. Charge based on usage 6. Sell a service 7. Advertising 8. Charge on % of assets More in 🧵
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    Lenny Rachitsky
    @lennysan
    Jul 29, 2020
    Crossed 1,000 paid subscribers today. Now making a living off 1,000 true fans. What do you know.
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    Lenny Rachitsky
    @lennysan
    Jul 23, 2025
    Anthropic co-founder Ben Mann on why he chose Montessori for his daughter: "If this were 10-20 years ago, I'd be lining her up for top-tier schools and extracurriculars. But now I don't think any of it's going to matter. Learning facts is going to fade into the background. What
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    Lenny Rachitsky
    @lennysan
    Jul 20, 2025
    Ben Mann (@8enmann) left @OpenAI in 2020 with the entire safety team to co-found @AnthropicAI (now reportedly valued at over $100B). In a rare interview, Ben opens up about: 🔸 What he saw at OpenAI that convinced him to leave 🔸 The AI nightmare scenarios that concern him
    1.2M
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    Lenny Rachitsky
    @lennysan
    Oct 3, 2023
    The first 10 hires across 20 top B2B startups
    854K
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    Lenny Rachitsky
    @lennysan
    Apr 15, 2025
    You now get one free year of @cursor_ai, @v0, @Replit, @lovable, and @boltdotnew pro plans with an annual subscription to Lenny’s Newsletter. Yes, you read that right. A year free of the hottest AI tools in the world right now. This is in addition to the existing products
    1.9M
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    Lenny Rachitsky
    @lennysan
    Oct 11, 2022
    All of my GTM and growth strategy research summarized in one image: