Lenny's Newsletter

Your Couch-to-5K for AI

Nick Chirls

Rough Patches

Fabrice Grinda

A Knight of the Seven Kingdoms: A Return to Storytelling That Actually Works

Saastr

Everyone’s Debating Lines of Code in Vibe Coding. Meanwhile, 14,230 Lines Runs Our Whole GTM.

A16Z

Workday's Last Workday?

QED

The age of agents

Sammy Abdullah

User based pricing has always been flawed

Insight Partners

Inside Semperis: Response and recovery after identity system attacks

Scott Hartley

Not My First Rodeo: Alfie Pearce-Higgins with Jenny Fielding

Saastr

The App Explosion Has Only Just Begun. Yes, We Now Even Have an AI Parking Pass Distribution App.

Ben Yoskovitz

Lean Analytics, Reconsidered

Antler

Building an AI Company with Antler: Prefactor and the Infrastructure Behind AI Agents

Heartcore

🔐 Heartcore Insights

Deconstructor of Fun

Supercell's Puzzling Gamble, Scopely’s War on Clones, and the Royal Kingdom Problem

Alfred Lin

A New Token Rule For Engineering Leadership

Evan O'Donnell

Three Theses

Tomasz Tunguz | Tomasz Tunguz

The Three Questions in AI Sales

Feld Thoughts | Brad Feld

The River

Obvious

How I Got to Now: James Joaquin

Tanay Jaipuria | Tanay Jaipuria

To Train or Not to Train

Saastr

The First 44 Speakers for SaaStr AI Annual 2026: The Founders and Operators Actually Shipping AI at Scale

Ethan Batraski

Claude Code Shows Why the Best Model Does Not Always Win

Climate Tech VC

🌎 The road report, from SF to Shenzhen to Spain #293

Lenny's Newsletter

🎙️ This week on How I AI: GPT 5.5, Claude Design, and GPT Images 2.0 hands-on reviews—plus an inside look at Memelord

Sammy Abdullah

Q4 2025 Payback Period in SaaS Continued Excellent Trend