Lenny's Newsletter

🎙️ How I AI: 8 real Jev use cases + How OpenAI uses ChatGPT Sites (live at DevDay!) + Claire’s DevDay recapnew

How OpenAI uses ChatGPT Sites (live at DevDay!) | Kath Korevec (Product Lead)new

OpenAI’s Head of ChatGPT: We’re entering a new era of AI (again) | Tibo Sottiaux

🧠 Community Wisdom: Getting value from personal AI agents without handing over your inbox, the ego threat of going from IC to manager, uncommon perks to negotiate for, and more

OpenAI Dev Day 2026: The releases that actually matter

Jev: 8 real use cases for the fastest, cheapest model I’ve ever used | John Lindquist

All of the Lenny & Friends Summit talks are now online!

🎙️ How I AI: Jev for beginners + I left Claude for months, Opus 5.5 brought me back + Opus 5.5 vs. GPT-6 Sol bench

Jev for beginners: how to use it and what to build

The grief, loneliness, and burnout sweeping through the tech industry right now | Molly Graham

🧠 Community Wisdom: AI doomerism, speeding up discovery in a big org, verifying engineering answers as a new PM, where analytics adds the most value, and more

Opus 5.5 vs. GPT-6 Sol: which model won my blind taste test?

I left Claude for months. Opus 5.5 is why I'm back

Advanced evals: How to find (and fix) hidden AI failures in your product

🎙️ How I AI: Meta’s Muse review + How Warp ships 2,000 PRs a month with AI factories

How Warp ships 2,000 PRs a month with AI factories | Zach Lloyd (CEO, Warp)

90 minutes of unfiltered product advice from Snap and Discord’s product chief | Peter Sellis

🧠 Community Wisdom: Finding your first users before the product exists, debriefing your own interviews, what to optimize for in the early years of your career, and more

Muse review: The personal AI agent that gets consumer UX right

60+ new creative growth ideas