YouSaid · the spoken record

Boris Cherny

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116
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2026-02-19
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2026-02-19
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  1. “And this is the craziest thing, right? Because it's like there's no, I didn't instruct the model to say use this tool for this or kind of do whatever. The model was given this tool and it figured out how to use it to answer this question that I had that I wasn't even sure if I could answer what music am I listening to?”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  2. “So I took a little detour to do that, and then I came back and just started prototyping what eventually became quad code. And the very first version of it, I have like a, there's like a video recording of the summer because I recorded this demo and I posted it. It was called Quad CMI back then. And I just kind of showed off how it used a few tools and the shocking thing for me was that I gave it a bash tool and it just was able to use that to write code to tell me what music I'm listening to when I asked it, like what music am I listening to?”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  3. “And with traditional engineering work. If you're working on product, you want to understand the infrastructure, the runtime, the virtual machine, the language, kind of whatever that is, the system that you're building on. But yeah, if you're working in AI, you just really have to understand the model to some degree to do good work.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  4. “I think for philanthropic for a long time, there was this feeling that we wanted to build something, but it wasn't obvious what. When I joined Dant, I spent one month kind of hacking and built a bunch of weird prototypes. Most of them didn't ship and weren't even close to shipping. It was just kind of understanding the boundaries of what the model can do. Then I spent a month doing post-training. So to understand kind of the research side of it. And I think honestly, that's just for me as an engineer. I find that to do good work, you really have to understand the layer under the layer at which you work.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  5. “The reason this matters for anthropic is because of safety. It's kind of, again, just back to that AI is getting more and more powerful. It's getting more and more capable. The thing that's happened in the last year is that for, at least for engineers, the AI doesn't just write the code. It's not just a conversation partner, but it actually uses tools. It acts in the world. And I think now with cowork, we're starting to see the transition for non-technical folks also. For a lot of people that use conversational AI, this might be the first time that they're using the thing that actually acts. It can actually use your Gmail. It can use your Slack. You can do all these things for you. And it's quite good at it. And it's only going to get better from here.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  6. “And, you know, we've been working on this for a long time. And when you look at the team that I started on, it was called the Anthropic Labs team. And actually, Mike Krieger and Ben Mann, they just kicked this team off again for kind of round two. The team built some pretty cool stuff. So we built quad code, we built MCP, we built the desktop app. So you can kind of see the seeds of this.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  7. “When I first started Quadkodu, it was just going to be supposed to be a little hack. Broadway knew anthropic that we wanted to get to ship some kind of coding product. And for anthropic, for a long time, we were building the models in this way that kind of fit our mental model of the way that we build safe AGI, where the model starts by being really good at coding, then it gets really good at tool use, then it gets really good at computer use. Roughly, this is like the trajectory.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  8. “These numbers are just totally crazy, right? Like 4% of all commits in the world is just way more than I imagined. Like you said, it still feels like the starting point. These are also just public commits. So we actually think if you look at private repositories, it's quite a bit higher than that. And I think the crazy thing for me isn't even the number that we're at right now, but the pace at which we're growing. Because if you look at quad code's growth rate kind of across any metric, it's continuing to accelerate. So it's not just going up. It's going up faster and faster.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  9. “And that's just a thing that I really missed. And I found that, you know, whatever the work might be, no matter how exciting, even if it's building a really cool product, it's just not really a substitute for that. So for me, it was actually pretty obvious that I was missing that pretty quick.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  10. “Think as soon as I got there, what I started to realize is what I really missed about Ant was the mission. And that's actually what originally drove me to Ant also. But before I joined Anthropic, I was working in big tech and then I was, at some point I wanted to work at a lab to just help shape the future of this crazy thing that we're building in some way. And the thing that drew me to Anthropic was the mission. And it's all about safety. And when you talk to people at Anthropic, just like find someone in the hallway, if you ask them why they're here, the answer is always going to be safety. And so this kind of like mission drivenness, just really, really resonated with me. And I just know personally it's something I need in order to be happy.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  11. “The fastest job change that I've ever had. I joined cursor because I'm a big fan of the product. And honestly, I met the team and I was just really impressed. They're an awesome team. I still think they're awesome and they're just building really cool stuff. And kind of, they saw where AI coding was going, I think, before a lot of people did. So the idea of building good product was just very exciting for me.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  12. “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.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  13. “Quad 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 co-worker or something like that.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  14. “In a year or two, it's not going to matter. Coding is largely solved. I imagine a world or where everyone is able to program. Anyone can just build software anytime. What's”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  15. “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%.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source

  16. “100% of my code is written by Quad Code. I have not edited a single line by hand since November. Every day I ship 10, 20, 30 pull requests. So I got the moment I have like five agents running.”

    2026-02-19 · Lenny's Podcast · Head of Claude Code: What happens after coding is solved | Boris Cherny · IDENTIFIED FROM THE TRANSCRIPT · source