Lenny Rachitsky (@lennysan) / X

Lenny Rachitsky

39.6K posts

Lenny Rachitsky

@lennysan

Deeply researched product, growth, and career advice

Bay Area, CA

linktr.ee/lennyspodcast

Joined August 2007

Pinned
Lenny Rachitsky
@lennysan
7h
The biggest upheaval to work in our lifetime is here. Joe Hudson (@FU_joehudson) coaches the research team at @OpenAI (along with @sama and leaders across Apple and Google), and from that front-row seat, has noticed the people doing best in these AI-forward environments aren't
40K
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 👇
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
Lenny Rachitsky
@lennysan
Feb 1, 2025
"The only people who’ll remember you worked late are your kids.”
887K
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…
Lenny Rachitsky
@lennysan
Sep 20, 2025
Super underrated book for founders
543K
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 👇
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 🧵
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 🧵
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.
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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01:24
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
Lenny Rachitsky
@lennysan
Oct 3, 2023
The first 10 hires across 20 top B2B startups
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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
Lenny Rachitsky
@lennysan
Oct 11, 2022
All of my GTM and growth strategy research summarized in one image: