Head of Claude Code: What happens after coding is solved | Boris Cherny

**Boris Cherny** (0:00)
100% of my code is written by Claude Code. I have not edited a single line by hand since November. Every day, I ship 10, 20, 30 poor requests. So at the moment, I have like five agents running.

**Lenny Rachitsky** (0:10)
While we're recording this? Yeah, yeah. Do you miss writing code?

**Boris Cherny** (0:13)
I have never enjoyed coding as much as I do today because I don't have to deal with all the minutia. Productivity per engineer has increased 200%.

**Lenny Rachitsky** (0:21)
There's always this question, should I learn to code?

**Boris Cherny** (0:22)
In a year or two, it's not going to matter. Coding is largely solved. I imagine a world where everyone is able to program. Anyone can just build software anytime.

**Lenny Rachitsky** (0:29)
What's the next big shift to how software is written?

**Boris Cherny** (0:32)
Claude is starting to come up with ideas. Looking through feedback, it's looking at bug reports, it's looking at telemetry for bug fixes and things to ship. A little more like a coworker or something like that.

**Lenny Rachitsky** (0:41)
A lot of people listening to this are product managers and they're probably sweating.

**Boris Cherny** (0:44)
I think by the end of the year, everyone's going to be a product manager and everyone codes. The title software engineer is going to start to go away. It's just going to be replaced by builder and it's going to be painful for a lot of people.

**Lenny Rachitsky** (0:56)
Today, my guest is Boris Cherny, head of Claude Code at Anthropic. It is hard to describe the impact that Claude Code has had on the world. Around the time this episode comes out will be the one-year anniversary of Claude Code. And in that short time, it has completely transformed the job of a software engineer, and it is now starting to transform the jobs of many other functions in tech, which we talk about. Claude Code itself is also a massive driver of Anthropic's overall growth over the past year. They just raised around at over $350 billion. And as Boris mentions, the growth of Claude Code itself is still accelerating. Just in the past month, their daily active users has doubled. Boris is also just a really interesting, thoughtful, deep-thinking human. And during this conversation, we discover we were born in the same city in Ukraine. That is so funny. I had no idea. A huge thank you to Ben Mann, Jenny Wen and Mike Krieger for suggesting topics for this conversation. Don't forget to check out lennysproductpass.com for an incredible set of deals available exclusively to Lennys newsletter subscribers. Let's get into it after a short word from our wonderful sponsors. Today's episode is brought to you by DX, the developer intelligence platform designed by leading researchers. To thrive in the AI era, organizations need to adapt quickly. But many organization leaders struggle to answer pressing questions like which tools are working, how are they being used, what's actually driving value. DX provides the data and insights that leaders need to navigate this shift. With DX, companies like Dropbox, booking.com, Adyen and Intercom get a deep understanding of how AI is providing value to their developers and what impact AI is having on engineering productivity. To learn more, visit DX's website at getdx.com/lenny. That's getdx.com/lenny. Applications break in all kinds of ways. Crashes, slowdowns, regressions, and the stuff that you only see once real users show up. Sentry catches it all. See what happened where and why. Down to the commit that introduced the error, the developer who shipped it, and the exact line of code all in one connected view. I have definitely tried the five tabs and slack thread approach to debugging. This is better. Sentry shows you how the request moved, what ran, what slowed down, and what users saw. Seer, Sentry's AI debugging agent, takes it from there. It uses all of that Sentry context to tell you the root cause, suggest a fix, and even opens a PR for you. It also reviews your PRs and flags any breaking changes with fixes ready to go. Try Sentry and Seer for free at sentry.io/lenny, and use code lenny for $100 in Sentry credits. That's sentry.io/lenny.
Boris, thank you so much for being here and welcome to the podcast.

**Boris Cherny** (3:54)
Yeah, thanks for having me on.

**Lenny Rachitsky** (3:55)
I want to start with a spicy question. About six months ago, I don't know if people even remember this, you actually left Anthropic, you joined Cursor, and then two weeks later, you went back to Anthropic. What happened there? I don't think I've ever heard the actual story.

**Boris Cherny** (4:12)
It's the fastest job change that I've ever had.