Best of Lenny’s Newsletter 2026

The 25 best posts from the past year, plus a few all-time classics

Jan 6 • Lenny Rachitsky

167

4

December 2025

AI tools are overdelivering: results from our large-scale AI productivity survey

What exactly AI is doing for people, which AI tools have product-market fit, where the biggest opportunities remain, and what it all means

Dec 23, 2025 • Noam Segal and Lenny Rachitsky

349

14

37

How to build your PM second brain with ChatGPT

Use AI to amplify your craft, not replace it

Dec 16, 2025 • Amir Klein

392

21

28

How to spot a top 1% startup early

Three key lessons from employees who picked multiple iconic companies

Dec 9, 2025 • Terrence Rohan and Lenny Rachitsky

295

8

12

A year free of PostHog ($16,500 value): The all-in-one analytics, experimentation, feature flag, surveys, session replay, error tracking…

A deal you won’t find anywhere else—bringing the total value of the Product Pass to over $25,000

Dec 2, 2025 • Lenny Rachitsky

108

2

3

November 2025

A holiday gift guide for tech people with taste 🤌

No slop here

Nov 18, 2025 • Lenny Rachitsky

114

4

6

Ecosystem is the next big growth channel

How to stand out in a noisy landscape

Nov 11, 2025 • Emily Kramer

354

9

26

Part 2 of how to get the most out of your product pass—and welcome, Stripe Atlas, to the bundle!

Tips for taking full advantage of the 17+ free premium products you have access to as a paid subscriber

Nov 4, 2025 • Lenny Rachitsky

160

5

1

October 2025

A builder’s guide to living a long and healthy life

For something a little different

Oct 28, 2025 • Justin Mares

262

12

11

Everyone should be using Claude Code more

How to get started, and 50 ways non-technical people are using Claude Code in their work and life

Oct 14, 2025 • Lenny Rachitsky

519

25

36

A free year of Devin: the world’s most advanced autonomous AI software engineer

An offer you won't find anywhere else—and an additional $1,350 in value for Insider subscribers

Oct 7, 2025 • Lenny Rachitsky

206

20

2

September 2025

Introducing the GAIN framework for feedback: an evidence-based approach to giving feedback that people love, appreciate, and act on

A step-by-step guide to crafting feedback you’ll want to give and people will want to get

Sep 30, 2025 • Jack Cohen

255

6

14