Andrej Karpathy, co-founder of OpenAI, former head of AI at Tesla, and now founder of Eureka Labs, returned to Sequoia Capital’s AI Ascent 2026 stage for a wide-ranging conversation with partner Stephanie Zhan. One year after coining the term “vibe coding,” Karpathy unpacked what has changed, why he has never felt more behind as a programmer, and why the discipline emerging on top of vibe coding, which he calls agentic engineering, is the more serious craft worth learning right now.

The conversation covered Software 3.0, the limits of verifiability, why LLMs are better understood as ghosts than animals, and why you can outsource your thinking but never your understanding. Below is a complete breakdown of the talk for anyone building, hiring, or learning in the agent era.

TLDW

Karpathy describes a sharp transition that happened in December 2025, when agentic coding tools crossed a threshold and code chunks just started coming out fine without correction. He frames the current moment as Software 3.0, where prompting an LLM is the new programming, and entire app categories are collapsing into a single model call. He distinguishes vibe coding (raising the floor for everyone) from agentic engineering (preserving the professional quality bar at much higher speed). Models remain jagged because they are trained on what labs choose to verify, so founders should look for valuable but neglected verifiable domains. Taste, judgment, oversight, and understanding remain uniquely human responsibilities, and tools that enhance understanding are the ones he is most excited about.

Key Takeaways

• December 2025 was a clear inflection point. Code chunks from agentic tools started arriving correct without edits, and Karpathy stopped correcting the system entirely.
• Software 3.0 means programming has become prompting. The context window is your lever over the LLM interpreter, which performs computation in digital information space.
• Open Code’s installer is a software 3.0 example. Instead of a complex shell script, you copy paste a block of text to your agent, and the agent figures out your environment.
• The Menu Gen anecdote illustrates how entire apps can become spurious. What used to require OCR, image generation, and a hosted Vercell app can now be a single Gemini plus Nano Banana prompt.
• Vibe coding raises the floor. Agentic engineering preserves the professional ceiling. The two are different disciplines.
• The 10x engineer multiplier is now far higher than 10x for people who are good at agentic engineering.
• Hiring processes have not caught up. Puzzle interviews are the old paradigm. New evaluations should look like building a full Twitter clone for agents and surviving simulated red team attacks from other agents.
• Models are jagged because reinforcement learning rewards what is verifiable, and labs choose which verifiable domains to invest in. Strawberry letter counts and the 50 meter car wash question show how state-of-the-art models can refactor 100,000 line codebases yet fail at trivial reasoning.
• If you are in a verifiable setting, you can run your own fine tuning, build RL environments, and benefit even when the labs are not focused on your domain.
• LLMs are ghosts, not animals. They are statistical simulations summoned from pre training and shaped by RL appendages, not creatures with curiosity or motivation. Yelling at them does not help.
• Taste, aesthetics, spec design, and oversight remain human jobs. Models still produce bloated, copy paste heavy code with brittle abstractions.
• Documentation is still written for humans. Agent native infrastructure, where docs are explicitly designed to be copy pasted into an agent, is a major opportunity.
• The future likely involves agent representation for people and organizations, with agents talking to other agents to coordinate meetings and tasks.
• You can outsource your thinking but not your understanding. Tools that help humans understand information faster are uniquely valuable.

Detailed Summary

Why Karpathy Feels More Behind Than Ever

Karpathy opens by describing how he has been using agentic coding tools for over a year. For most of that period, the experience was mixed. The tools could write chunks of code, but they often required edits and supervision. December 2025 changed everything. With more time during a holiday break and the release of newer models, Karpathy noticed that the chunks just came out fine. He kept asking for more. He cannot remember the last time he had to correct the agent. He started trusting the system, and what followed was a cascade of side projects.

He wants to stress that anyone whose model of AI was formed by ChatGPT in early 2025 needs to look again. The agentic coherent workflow that genuinely works is a fundamentally different experience, and the transition was stark.

Software 3.0 Explained

The Software 1.0 paradigm was writing explicit code. Software 2.0 was programming by curating datasets and training neural networks. Software 3.0 is programming by prompting. When you train a GPT class model on a sufficiently large set of tasks, the model implicitly learns to multitask everything in the data. The result is a programmable computer where the context window is your interface, and the LLM is the interpreter performing computation in digital information space.

Karpathy gives two concrete examples. The first is Open Code’s installer. Normally a shell script handles installation across many platforms, and these scripts balloon in complexity. Open Code instead provides a block of text you copy paste to your agent. The agent reads your environment, follows instructions, debugs in a loop, and gets things working. You no longer specify every detail. The agent supplies its own intelligence.

The Menu Gen Story

The second example is Karpathy’s Menu Gen project. He built an app that takes a photo of a restaurant menu, OCRs the items, generates pictures for each dish, and renders the enhanced menu. The app runs on Vercell and chains together multiple services. Then he saw a software 3.0 alternative. You take a photo, give it to Gemini, and ask it to use Nano Banana to overlay generated images onto the menu. The model returns a single image with everything rendered. The entire app he built is now spurious. The neural network does the work. The prompt is the photo. The output is the photo. There is no app between them.

Karpathy uses this to argue that founders should not just think of AI as a speedup of existing patterns. Entirely new things become possible. His example is LLM driven knowledge bases that compile a wiki for an organization from raw documents. That is not a faster version of older code. It is a new capability with no prior equivalent.

What Will Look Obvious in Hindsight

Stephanie Zhan asks what the equivalent of building websites in the 1990s or mobile apps in the 2010s looks like today. Karpathy speculates about completely neural computers. Imagine a device that takes raw video and audio as input, runs a neural net as the host process, and uses diffusion to render a unique UI for each moment. He notes that early computing in the 1950s and 60s was undecided between calculator like and neural net like architectures. We went down the calculator path. He thinks the relationship may eventually flip, with neural networks becoming the host and CPUs becoming co processors used for deterministic appendages.

Verifiability and Jagged Intelligence

Karpathy spent significant writing time on verifiability. Classical computers automate what you can specify in code. The current generation of LLMs automates what you can verify. Frontier labs train models inside giant reinforcement learning environments, so the models peak in capability where verification rewards are strong, especially math and code. They stagnate or get rough around the edges elsewhere.

This explains the jagged intelligence puzzle. The classic example was counting letters in strawberry. The newer one Karpathy offers: a state of the art model will refactor a 100,000 line codebase or find zero day vulnerabilities, then tell you to walk to a car wash 50 meters away because it is so close. The two coexisting capabilities should be jarring. They reveal that you must stay in the loop, treat models as tools, and understand which RL circuits your task lands in.

He also points out that data distribution choices matter. The jump in chess capability from GPT 3.5 to GPT 4 came largely because someone at OpenAI added a huge amount of chess data to pre training. Whatever ends up in the mix gets disproportionately good. You are at the mercy of what labs prioritize, and you have to explore the model the labs hand you because there is no manual.

Founder Advice in a Lab Dominated World

Asked what founders should do given that labs are racing toward escape velocity in obvious verifiable domains, Karpathy points back to verifiability itself. If your domain is verifiable but currently neglected, you can build RL environments and run your own fine tuning. The technology works. Pull the lever with diverse RL environments and a fine tuning framework, and you get something useful. He hints there is one specific domain he finds undervalued but declines to name it on stage.

On the question of what is automatable only from a distance, Karpathy says almost everything can ultimately be made verifiable. Even writing can be assessed by councils of LLM judges. The differences are in difficulty, not in possibility.

From Vibe Coding to Agentic Engineering

Vibe coding raises the floor. Anyone can build something. Agentic engineering preserves the professional quality bar that existed before. You are still responsible for your software. You are still not allowed to ship vulnerabilities. The question is how you go faster without sacrificing standards. Karpathy calls it an engineering discipline because coordinating spiky, stochastic agents to maintain quality at speed requires real skill.

The ceiling on agentic engineering capability is very high. The old idea of a 10x engineer is now an understatement. People who are good at this peak far above 10x.

What Mediocre Versus AI Native Looks Like

Karpathy compares this to how different generations use ChatGPT. The difference between a mediocre and an AI native engineer using Claude Code, Codex, or Open Code is investment in setup and full use of available features. The same way previous generations of engineers got the most out of Vim or VSCode, today’s strong engineers tune their agentic environments deeply.

He thinks hiring processes have not caught up. Most companies still hand out puzzles. The new test should look like asking a candidate to build a full Twitter clone for agents, make it secure, simulate user activity with agents, and then run multiple Codex 5.4x high instances trying to break it. The candidate’s system should hold up.

What Humans Still Own

Agents are intern level entities right now. Humans are responsible for aesthetics, judgment, taste, and oversight. Karpathy describes a Menu Gen bug where the agent tried to associate Stripe purchases with Google accounts using email addresses as the key, instead of a persistent user ID. Email addresses can differ between Stripe and Google accounts. This kind of specification level mistake is exactly what humans must catch.

He works with agents to design detailed specs and treats those as documentation. The agent fills in the implementation. He has stopped memorizing API details for things like NumPy axis arguments or PyTorch reshape versus permute. The intern handles recall. Humans handle architecture, design, and the right questions.

Reading the actual code agents produce can still cause heart attacks. It is bloated, full of copy paste, riddled with awkward and brittle abstractions. His Micro GPT project, an attempt to simplify LLM training to its bare essence, was nearly impossible to drive through agents. The models hate simplification. That capability sits outside their RL circuits. Nothing is fundamentally preventing this from improving. The labs simply have not invested.

Animals Versus Ghosts

Karpathy returns to his framing that we are not building animals, we are summoning ghosts. Animal intelligence comes from evolution and is shaped by intrinsic motivation, fun, curiosity, and empowerment. LLMs are statistical simulation circuits where pre training is the substrate and RL is bolted on as appendages. They are jagged. They do not respond to being yelled at. They have no real curiosity. The ghost framing is partly philosophical, but it changes how you approach them. You stay suspicious. You explore. You do not assume the system you used yesterday will behave the same on a new task.

Agent Native Infrastructure

Most software, frameworks, libraries, and documentation are still written for humans. Karpathy’s pet peeve is being told to do something instead of being given a block of text to copy paste to his agent. He wants agent first infrastructure. The Menu Gen project’s hardest part was not writing code. It was deploying on Vercell, configuring DNS, navigating service settings, and stringing together integrations. He wants to give a single prompt and have the entire thing deployed without touching anything.

Long term he expects agent representation for individuals and organizations. His agent will negotiate meeting details with your agent. The world becomes one of sensors, actuators, and agent native data structures legible to LLMs.

Education and What Still Matters

The most striking line of the conversation comes near the end. Karpathy quotes a tweet that shaped his thinking: you can outsource your thinking but you cannot outsource your understanding. Information still has to make it into your brain. You still need to know what you are building and why. You cannot direct agents well if you do not understand the system.

This is part of why he is so excited about LLM driven knowledge bases. Every time he reads an article, his personal wiki absorbs it, and he can query it from new angles. Every projection onto the same information yields new insight. Tools that enhance human understanding are uniquely valuable because LLMs do not excel at understanding. That bottleneck is yours to manage.

Thoughts

The most useful frame in this talk is the distinction between vibe coding and agentic engineering. It clarifies what has been muddled for the past year. Vibe coding is about access. Anyone can produce something. Agentic engineering is about discipline. You preserve the standards that made software trustworthy in the first place, while moving at speeds that would have seemed absurd two years ago. These are not the same activity, and conflating them is part of why so many shipped products feel half built.

The Menu Gen anecdote is the kind of story that should make every solo developer pause. If a single Gemini plus Nano Banana prompt can replace a multi service Vercell deployed app, the question for any builder becomes how much of what you are working on right now is going to be made spurious by the next model release. The honest answer is probably more than you want to admit. The defensive posture is not building thicker apps. It is choosing problems where the model alone is not enough, where taste, distribution, infrastructure, or specific verifiable RL environments give you something the next model cannot collapse into a prompt.

The verifiability lens is also unusually practical. If you are a solo builder, the question shifts from what is possible to what is verifiable but neglected. The labs will eat the obvious verifiable domains because that is how their RL pipelines are set up. The opportunity is in domains where verification is possible but the labs have not yet invested. That is a much more concrete strategic filter than vague intuitions about defensibility.

The car wash example is going to stick. State of the art models can refactor enormous codebases and still tell you to walk somewhere a sane person would drive. That is the lived reality of jagged intelligence, and it argues strongly for staying in the loop on real decisions rather than handing off everything to agents. The agents are excellent fillers of blanks. They are not yet trustworthy specifiers of the spec.

Finally, the line about outsourcing thinking but not understanding is worth taping above the desk. The bottleneck is no longer typing speed, syntax recall, or even API knowledge. It is whether the human in the loop actually understands the system being built. Tools that genuinely improve human understanding, including personal knowledge bases that re project information through different prompts, are likely the most undervalued category of products being built right now. The opportunity is not just in agents. It is in the cognitive scaffolding that makes humans good directors of agents.