How To Build A Company With AI From The Ground Up

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Hi, I'm Diana and I'm a partner at YC.

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Over the past few months, it's become clear to me that AI is not just going to change how quickly software gets built or what workflows get automated.

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It's going to fundamentally change the way startups should be run from what roles it will exist to what products are possible to build.

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In this episode, I'm going to discuss how founders should think about building an AI native company.

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What roles their team should have and what concrete internal practices they can adopt right now to move much faster.

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Currently, most people talk about AI in terms of productivity.

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They'll talk at length about how it can make engineers more productive or say we need to add copilot to existing workflows and ship more features.

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This framing misses the shift we're currently seeing which is less about productivity boost than entirely new capabilities.

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The right person with AI tools can now build features that used to require an entire team or were just impossible.

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Thinking about AI in terms of new capabilities has several implications for how founders should run their companies.

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At a high level, the way to think about AI is that it should not be a tool your company just uses.

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It should be the operating system your company runs on.

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Every workflow, every decision, and every process should flow through an intelligent layer that is constantly learning and improving.

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What this means concretely is every important process in your company should be captured by an intelligent closed loop.

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A closed loop captures information, feeds it back into an intelligent systems, and improves the process over time.

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If you've ever studied control systems, you'll be familiar with the difference between an open loop and a closed loop system.

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Open loops are control systems without feedback loops.

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In the old world, companies basically ran as open loops.

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You made a decision, executed it, and didn't always systematically measure the outcome, and adjust the process.

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Open loops are inherently lossy.

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A closed loop, on the other hand, is self-regulating.

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It continuously monitors its output and adjust its process to better meet the stated goal.

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Closed loops are extremely powerful for correctness and stability.

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With self-improving agents, your company should run as a closed loop.

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To build these closed loops, you will need to make your entire company queryable.

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In other words, the whole organization should be legible to AI.

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Every important action should produce an artifact that the intelligence at the center of the company can learn from and use to self-improve.

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This means recording your meetings with an AI note-taker, minimizing DMs and emails, and embedding agents throughout communication of all channels.

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It also means building custom dashboards with everything in the company: revenue, sales, engineering, hiring, ops, everything.

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Here's a concrete example of how it could work.

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Take engineering management and sprint planning.

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If you have an agent that has access to your linear tickets, all your Slack engineering channels, all customer feedback from emails or tools like Pylon and GitHub, high-level plans in a Notion or Google Doc, sales calls and recordings from daily stand-ups, then the agent can analyze what was actually shipped in your previous sprint and how well they met customers' needs for real.

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From there, you can go a step further.

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With full visibility into what shipped, what worked, and what didn't, agents can start looking ahead.

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They can propose sprint plans for engineers that are way more predictable and accurate and on track.

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The days of eng manager status roll-ups that are super lossy are gone.

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Having managed engineering teams myself, and now seeing this across multiple YC companies. This is a game changer.

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What used to require constant coordination becomes legible and queryable by default.

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I've seen teams that do this cut their engineering sprint time in half and get close to 10x more done in that time.

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The overarching principle here is that to get their full capabilities, you need to provide models with as much context as you would provide an employee.

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When you do this, your company stops operating as an open loop where information is fragmented and manually interpreted.

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It becomes instead a closed-loop system.

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Status, decisions, and outcomes are continuously captured and fed back into this intelligence layer.

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The result is a system that always has an up-to-date view of what's actually happening.

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There's also a new paradigm emerging for how the highest velocity companies build product. AI software factories.

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If you're familiar with the test-driven development or TDD, this is the next evolution of that.

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With software factories, humans write a spec and a set of tests that define success.

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And then AI agents generate the implementation and code and iterate until the test pass.

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The human defines what to build and judges the output.

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The actual code is the agent's job.

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Some companies have already pushed this to the point where the repos contain no hand-written code, just specs and test harnesses.

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Strong DM's EI team is an example of how to do this.

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Their end goal was a system that essentially eliminated the need for a human to write or review code.

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And so, they built their own software factory where specs and a scenario-based validations drive agents to write, test, and iterate on code until it meets a probabilistic satisfaction threshold. And it works.

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This is how you achieve the 1000 X engineer that Steve Yegge talked about by surrounding a single engineer with a system of agents that enable them to build things they would have never been able to build before.

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The era of the 1000 or even 10,000 X engineer is here.

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One implication of building your company this way with AI loops everywhere, a queryable organization and software factories, is that the classic management hierarchy no longer makes sense.

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In the old world, you needed middle managers and coordinators to route information inefficiently up and down an organization.

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In the new world, the intelligence layer serves that purpose.

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If your company is queryable, artifact-rich, and legible to an AI, you should have almost no human middleware.

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This matters because your company's velocity is only as fast as its information flow.

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Every layer of human routing you can remove is a direct speed gain.

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A great example is what Jack Dorsey is doing over at Block.

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After going deep on the tools, he's come to the same conclusion many have.

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This is about more than just incremental productivity gains.

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His view is that if you keep the same org chart and management structure, you'd miss the shift entirely.

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The company itself has to be rebuilt as an intelligence layer with humans at the edge guiding it rather than routing information through it.

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Going forward, Jack suggests every company will have three employee archetypes.

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The first is the individual contributor or IC.

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Basically, the builder operator.

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This is someone who directly makes and runs things.

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In an AI-native company, this is not limited to engineers. Everyone builds.

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Eng, ops, support, sales.

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Everyone comes to meetings with working prototypes, not pitch decks.

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Second, is the DRI, the directly responsible individual.

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Focus on strategy and customer outcomes.

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This is not a classic manager, is the person with a clear responsibility for the result.

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One person, one outcome, no hiding.

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The third is the AI founder type.

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This person still builds, still coaches and leads by example.

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If you're the founder, this needs to be you at the forefront.

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Showing your team what massive capability gains look like, not delegating your AI strategy to someone else.

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With this structure, companies will be able to get outsized results with much smaller teams.

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Maximizing token usage, not headcount, will be the critical shift.

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The best companies will be the ones that are token maxing.

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Think of the trade-off this way.

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One person with AI tools can be the equivalent of what used to take a large engineering team at a pre-AI company.

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That means dramatically leaner engineering, design, HR, and admin teams.

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And so, you should be willing to run an uncomfortably high API bill.

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Because it's replacing what would have taken a far more expensive and inflated headcount.

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But, don't just take my word for any of this.

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You cannot outsource your conviction on the power of these tools.

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You need to develop it yourself by actually sitting with coding agents and using them until you start to break your own priors about what is now possible to build.

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If you are an early-stage founder, you have a huge advantage in getting ahead on this.

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You don't have legacy systems, entrenched org charts, or thousands of people to retrain.

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You are small enough to build your company right from day one.

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The opposite is the case for existing companies.

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They have to maintain and grow a live product while unwinding years of standard operating procedures and core assumptions about how software gets built.

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Some companies can achieve this by spinning up small internal skunkworks teams that can build AI native systems from scratch, separate from the core business.

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Mutiny is a great example of this.

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But, for most, every change to their core processes risk breaking something that already works.

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So, by their nature, these large companies will have a much harder time going AI native.

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Startups don't have that constraint, and that's a major edge to take advantage of.

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You can design your systems, workflows, and culture around AI from the start, and as a result, operate 1,000 times faster than the incumbents.