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The a16z Show · · 53 min

From Vibe Coding to Vibe Researching: OpenAI’s Mark Chen and Jakub Pachocki

Mark ChenJakub PachockiAnjney MidhaSarah Wang

YouTube
TL;DR
  • GPT-5’s strategic purpose is to make reasoning the default rather than force users to choose between instant GPT models and the slower o-series. OpenAI is researching how much thinking each prompt deserves, aiming to remove that product friction while delivering more agentic behavior “by default.” For investors, the competition is shifting toward adaptive thinking budgets, latency, reliability, and usable autonomy.

  • OpenAI considers many familiar evals effectively saturated and is moving toward benchmarks based on genuine discovery and economic relevance. Reinforcement learning can create narrow domain experts, so improving from 96% to 98% may say less about generalization than it once did. AtCoder and IMO remain credible markers because leading researchers passed through them, but the next milestone is “actual movement on things that are economically relevant.”

  • The central research roadmap is an “automated researcher” capable of discovering new ideas in machine learning and other sciences. Jakub Pachocki estimates that reaching near-mastery of high-school competitions would correspond to roughly “one to five hours of reasoning”; progress now requires longer planning, persistent memory, recovery from failed approaches, and autonomous operation measured over expanding time horizons.

  • Reinforcement learning keeps producing gains because language-model pretraining supplied the rich environment that earlier RL systems lacked. Natural-language modeling gave models a nuanced understanding of human language, after which researchers could explore many objectives and domains. Mark Chen expects reward design to become simpler, while Pachocki says learning should move toward something more humanlike and warns enterprises “not to assume that what is now will be forever.”

  • GPT-5-Codex shows that deployment quality depends on allocating intelligence and time correctly, not merely maximizing it. The previous generation spent too little time on the hardest tasks and too much on easy ones; the new work targets lower latency for simple jobs and deeper reasoning for difficult, messy coding environments. Jakub Pachocki, who said he had mostly used Vim, said a 30-file refactor can now be completed “pretty much perfectly in 15 minutes,” although the tools remain in an “uncanny valley” short of a coworker.

  • “Vibe researching” is a hoped-for future, but the guests argue that taste, persistence, and honest failure analysis remain load-bearing. Research means attempting something “that will most likely fail,” maintaining conviction without going out of one’s way “to prove that it works,” and recognizing both software bugs and flawed conceptual frames. The human research contribution still includes choosing important, hard problems and learning when to persist or pivot.

  • OpenAI’s organizational approach combines protected fundamental research, deliberate prioritization, and still-scarce compute. The lab resists chasing every competing release, maintains distinct mandates for algorithmic advances and product-oriented research, and Jakub’s interrupted answer to an extra-10%-resources question was “compute.” The risk of diffuse investment is ending up “second place at everything,” while longer-term constraints broaden from compute to energy, robotics, and the physical world.

Digest · the substance, structured for research

1. GPT-5 makes reasoning the default rather than a separate mode

  • Mark Chen framed GPT-5 as an attempt to “bring reasoning into the mainstream.” Earlier users had to choose between the instant GPT-2/3/4 lineage and an o-series model that thought much longer; GPT-5 instead tries to infer the appropriate reasoning budget for each prompt.

  • The product thesis is as important as the raw capability: users should not be “puzzled” about which mode to select. OpenAI wants to take that decision away while making reasoning and agentic behavior available “by default,” even though the model also improves broadly over o3.

  • The guests described different personal thresholds. Chen said o3 made mathematical formulas and derivations “fairly trustworthy” for daily work; Pachocki said GPT-5 then pushed further into hard sciences, where physicists and mathematicians repeatedly found it could produce non-trivial mathematics that earlier models could not.

2. Static benchmarks are yielding to discovery as the real eval

  • Pachocki’s critique of legacy evals: moving from 96% to 98% on a nearly saturated test is no longer decisive. During the GPT-2-to-GPT-4 era, one pretraining recipe could be judged by broad generalization; reinforcement learning can now deliberately make a model expert in one domain, weakening the inference from a high specialized score to broad generalization.

  • Competition results still matter because they are not merely artificial tests. Pachocki called AtCoder and IMO “real-world markers for success in future research,” noting that many exceptional researchers developed through those contests; OpenAI had already reached number two in the AtCoder competition.

  • The more consequential evidence came from working scientists. Pachocki described a “light-bulb moment” when GPT-5 automated work that might have taken a student months, while qualifying that the mathematics was nontrivial but not necessarily very complicated.

  • OpenAI therefore sees itself in an “evaluation deficit.” The replacement target is not another saturated question set but evidence that a model can discover something new and produce “actual movement” on economically relevant work.

3. The automated researcher is a horizon-and-memory problem

  • Pachocki stated the roadmap plainly: “The big thing that we are targeting with our research is producing an automated researcher.” Automating OpenAI’s own machine-learning research is an obvious test, but the team also wants models to advance other sciences rather than measure itself only through a self-referential loop.

  • Pachocki estimated that reaching near-mastery of high-school competitions would correspond to roughly “one to five hours of reasoning.” The next jump requires planning over much longer horizons and retaining memory, making the duration of reliable autonomous operation a particularly important eval.

  • The hosts’ pushback is worth keeping: every additional tool call or planning hop can create quality regressions or another opportunity for the system to drift. Pachocki’s answer was that they are fundamentally the same problem: maintaining depth means remaining consistent, and reasoning models have already lengthened the period before they go off track.

  • Chen illustrated the required robustness with mathematical work: try an approach, absorb hard feedback, diagnose the mistake, choose another route, and repeat. Reasoning is this extended recovery loop, not simply producing more intermediate steps.

4. Long-horizon research collapses the divide between verifiable and open-ended work

  • Pachocki rejected a clean boundary between formal and open-ended domains once tasks last months or years. An hour-long constraint problem may have a finite idea space; proving a Millennium Prize problem would require choosing relevant fields, seeking inspiration from physics, and designing an entire research program.

  • Even a seemingly crisp objective such as reducing modeling loss becomes open-ended at research scale: the harder question is whether the team is “actually asking the right questions.” Longer horizons therefore make problem formulation, taste, and exploration part of otherwise verifiable work.

  • Anjney Midha noted that OpenAI also considers the limits of “open-ended,” citing Sam’s earlier tweet about making models write more creatively. The claim was not that every domain now has an objective reward, but that research must eventually span both hard feedback and less explicit judgments.

5. Language pretraining turned RL into a compounding research platform

  • Chen traced RL’s earlier bottleneck to the environment: researchers had a powerful learning method but struggled to anchor agents to reality, even considering simulated islands where they might collaborate and compete. Large-scale natural-language modeling supplied an environment with an “incredibly nuanced understanding of human language.”

  • Once reinforcement learning operates on that pretrained base, researchers can pursue many objectives inside a robust, information-rich environment. Chen called this perhaps OpenAI’s “most exciting period” in several years because numerous new directions appeared promising at once, while conceding that the team is still learning how they combine.

  • Asked how a biologist, physicist, or enterprise should construct rewards, Chen expected the process to evolve rapidly and become simpler. Pachocki said the field is still moving beyond the way it thought about fine-tuning datasets two years ago and toward more humanlike learning; his key warning was, “Do not assume that what is now will be forever.”

6. Codex reallocates thinking time and makes manual coding feel optional

  • Chen described the Codex team’s job as converting raw reasoning intelligence into useful real-world coding. Coding environments are messy, and quality includes softer behavior — style, proactivity, and whether the model is “lazy” — so the team is effectively defining a behavioral specification as well as improving task performance.

  • A central correction was time and latency allocation per task. The prior generation spent too little time on the hardest problems and too much on easy ones; GPT-5-Codex targets lower latency when a problem is simple and higher latency when deeper work materially improves the result.

  • Pachocki said he had mostly used Vim and described his conversion: “You can do a 30-file refactor pretty much perfectly in 15 minutes — you kind of have to use it.” Yet he still placed the experience in an “uncanny valley,” highly useful but “not quite as good as a coworker.”

  • The competitive-programming frontier is not completely closed: IMO Problem 6 and the hardest programming problems still leave “a little bit of headway.” But Anjney’s encounter with high-schoolers suggested the cultural transition has arrived — writing mechanics from scratch seemed strange to them because “the default way to code is vibe coding.” His hoped-for sequel: “the future hopefully will be vibe researching.”

7. Vibe researching still depends on persistence, taste, and failure

  • Pachocki’s definition begins with uncertainty: research creates or learns something not already known to work, meaning “you’re always trying something that will most likely fail.” The researcher needs clear hypotheses, readiness to learn, and enough honesty not to distort evidence merely to prove the favored idea works.

  • The hosts pressed on whether conviction and truth-seeking are inherently in tension. Pachocki said no: someone can believe strongly and persist while results remain negative, provided they accurately track progress and update from failures rather than confusing commitment with confirmation.

  • His problem-selection heuristic is to pursue questions that are both important and widely considered not tractable, then ask what specifically blocks the next step. Caring deeply about the outcome supplies the motivation needed to continue for years.

  • Chen emphasized that experience teaches the right problem horizon and the emotional management of repeated failure. Papers and colleagues help develop “interestingness,” but there are “very few shortcuts”; sometimes the correct choice is perseverance, and sometimes it is switching problems.

  • One recurring breakthrough mechanism is finding bugs. These may be literal software defects that quietly invalidate months of experiments, or “bugs” in a mental frame that produce wrong assumptions; both the first reasoning models and the larger pretrained models involved issues that required rethinking assumptions and frames.

8. OpenAI protects frontier research while compute remains scarce

  • Chen said the recruiting proposition is fundamental discovery, not asking what “company X” or “company Y” just released: “We really don’t like copying.” Hiring favors people who have solved hard problems in physics, computer science, finance, or elsewhere, coupled with technical fundamentals, ambition, and the willingness to stick with difficult work. Chen also cited OpenAI’s resident program as a way to bring people from other fields into AI through hands-on implementation of core results.

  • Research talent need not fit one engineering archetype. Some researchers generate “so much alpha” through a stream of ideas; others rigorously map the experimental space around one idea. The organization aims to combine those styles rather than require every contributor to express impact identically.

  • Both leaders called it essential to “protect fundamental research” from constant product demands and competitive releases. Product-oriented researchers should have explicit accountability, while another group receives room to ask what models could look like in one or two years; the automated-researcher objective supplies a coarse compass without prescribing every project.

  • Nano Banana illustrated the portfolio tension: compelling media tools can unlock everyday creativity, and OpenAI does not discourage researchers excited by those products. The answer is consistent prioritization and separate protection for algorithmic advances, with compute moved dynamically between core and product research as monthly needs change.

  • Asked where an additional 10% of resources would go, Pachocki began answering “compute” before the exchange moved on. He also said he had not bought the claim that AI would soon become primarily data-constrained; anyone doubting the scarcity should “step into my job for a week.” Without prioritization, the danger is becoming “second place at everything.”

  • Pachocki’s durable priors extend beyond compute to energy and other physical constraints, with robotics likely to become a major focus “not too far” away. On intelligence itself, he would make few assumptions.

  • The lab’s speed rests partly on avoiding a learning plateau: Chen said new results emerge fast enough that staying current is a full-time job, while Pachocki described repeatedly reconfiguring around new constraints and possibilities. Their own partnership grew from an unpopular early reasoning effort — Pachocki attacking technical problems deeply, Chen turning scattered contributors into a coherent team.

Jakub Pachocki

The big thing that we're targeting is producing an automated researcher: automating the discovery of new ideas. The next set of evals and milestones that we're looking at will involve actual movement on things that are economically relevant. Anjney Midha

I was talking to some high schoolers, and they're saying, “Oh, actually, the default way to code is vibe coding.” I do think the future, hopefully, will be vibe researching.

Speaker 1

Thanks for coming, Jakub and Mark. Jakub, you're the chief scientist at OpenAI. Mark, you are the chief research officer at OpenAI, and you both have the privilege and the stress of running probably one of the most high-profile research teams in AI. We're really stoked to talk with you about a whole bunch of things we've been curious about, including GPT-5, which was one of the most exciting updates to come out of OpenAI in recent times.

Stepping back, how do you build a research team that can do not just GPT-5, but Codex and ChatGPT and an API business, and can weave all of the many different bets you guys have across modalities and product form factors into 1 coherent research culture and story?

To kick things off, why don't we start with GPT-5? Tell us a little bit about the GPT-5 launch from your perspective. How did it go?

Mark Chen

I think GPT-5 was really our attempt to bring reasoning into the mainstream. Prior to GPT-5, we had 2 different series of models: the GPT-2, GPT-3, and GPT-4 series, which were instant-response models, and then the o-series, which essentially thought for a very long time and then gave you the best answer it could.

Tactically, we don't want our users to be puzzled by which mode they should use. It involves a lot of research to identify what the right amount of thinking for any particular prompt looks like and take that pain away from the user. We think the future is about reasoning more and more, about agents, and we think GPT-5 is a step toward delivering reasoning and more agentic behavior by default. There are also a number of improvements across the board in this model relative to o3 and our previous models, but our primary thesis for this launch was indeed bringing the reasoning mode to more people.

Speaker 1

Can you say more about how you guys think about evals? I noticed even in that launch video there were a number of evals where you were inching up from 98% to 99%, and that's kind of how you know you've saturated the eval. What approach do you guys take to measuring progress, and how do you think about it?

Jakub Pachocki

One thing is that the evals we've been using for the last few years are pretty close to saturated. For a lot of them, inching from 96% to 98% isn't necessarily the most important thing in the world.

Another thing that's maybe even more important, but a little subtler, is that when we were in this GPT-2, GPT-3, and GPT-4 era, there was kind of 1 recipe: you just pre-trained a model on a lot of data and used these evals as a yardstick for how it generalizes to different tasks. Now we have different ways of training, in particular reinforcement learning on serious reasoning, where we can pick a domain and really train a model to become an expert in that domain and reason very hard about it.

That lets us target particular kinds of tasks, which means we can get extremely good performance on some evals, but it doesn't indicate as great generalization to other things. We think we're in a little bit of a deficit when it comes to great evaluations. For me, the most exciting thread and actual sign of progress this year has been our models' performance in math and programming competitions, although I think they're also becoming saturated in a sense. The next set of evals and milestones that we're looking at will involve actual discovery and actual movement on things that are economically relevant.

Speaker 1

Totally. You guys already got number 2 in the AtCoder competition, so there's really only number 1 left.

Jakub Pachocki

Yeah. I mean, it is important to note that these evals—AtCoder and IMO—are actually real-world markers for success in future research. A lot of the best researchers in the world have gone through these competitions and gotten very good results, and we're preparing for this frontier where we're trying to get our models to discover new things.

Speaker 1

Yeah, very exciting. Which capability from GPT-5 before the release surprised you the most when you were working through the eval bench or using it internally? Were there any moments where you felt like this was starting to get good enough to release because it was useful in your daily usage?

Jakub Pachocki

I think 1 big thing for me was just how much it moved the frontier in very hard sciences. We would try the models with some of our friends who are professional physicists or professional mathematicians, and you already saw some instances of this on Twitter. You can take a problem and have it discover maybe not very complicated new mathematics, but some nontrivial new mathematics.

We see physicists and mathematicians repeating this experience over and over: they're trying it and saying, “Wow, this is something that the previous version of the models couldn't do.” It is a bit of a light-bulb moment for them. It's able to automate maybe what could take 1 of their students months of time.

Mark Chen

Well, GPT-5 is a definite improvement on o3. For me, o3 was definitely that moment when the reasoning models became actually very useful on a daily basis. Especially for working through a math formula or a derivation, it got to a level where it was fairly trustworthy, and I could use it as a tool for my work.

It is very exciting to get to that moment. But now, as we're seeing these models actually able to automate—yes, as we're saying, solve contest problems over longer time horizons—I expect that was quite small compared to what's coming over the next year.

Speaker 1

What is coming in the next 1 to 5 years, at whatever level you're comfortable sharing? What does the research roadmap look like?

Jakub Pachocki

The big thing that we're targeting with our research is producing an automated researcher: automating the discovery of new ideas. Of course, a particular thing we think about a lot is automating our own work—automating ML research—but that can get a little self-referential. So we're also thinking about automating progress in other sciences.

One good way to measure progress there is to look at the time horizon over which these models can actually reason and make progress. As we get to a level of near mastery of high school competitions, let's say, I would say we get to maybe on the order of 1 to 5 hours of reasoning. We're focused on extending that horizon, both in terms of the model's capability to plan over very long horizons and its ability to retain memory.

And back to the evals question, that's why I think evals of the form “How long does this model autonomously operate?” are of particular interest to us.

Speaker 1

Actually, maybe on that topic, there's been this huge move toward agency and model development. But I think, at least in its current state, users have observed a trade-off: too many tools or planning hops can result in quality regressions, versus something that has a little less agency, where the quality is at least observed today to be a bit higher.

How do you think about the trade-off between stability and depth? The more steps that the model is undertaking, maybe the less likely the 10th step is to be accurate, versus asking it to do 1 thing, which it can do very, very well, and having it keep doing that 1 thing better and better. For more complex things, there's sort of that trade-off, but of course, to get to full autonomy, you're taking multiple steps and using multiple tools.

Jakub Pachocki

I think, actually, the ability to maintain depth is a lot about being consistent over long horizons. So I think they are very related problems. In fact, with the reasoning models, we've seen the models greatly extend the length over which they're able to reason and work reliably without going off track. This is going to remain a big area of focus for us.

Mark Chen

Yeah. I think reasoning is core to this ability to operate over a long horizon. Imagine yourself solving a math problem: you try an approach, it doesn't work, and you have to think about what the next approach you're going to take is and what the mistakes in the first approach were. Then you try another thing, and the world gives you some hard feedback. You keep trying different approaches, and the ability to do that over a long period of time is reasoning, and it gives agents that robustness.

Speaker 1

We've talked a lot about math and science. I'm curious to get your take: do you think some of the progress that we've made can extend similarly to domains that are less verifiable?

They're less explicitly right or wrong.

Jakub Pachocki

Oh yeah, this is a question I really like. I think if you truly want to extend to research and find ideas that meaningfully advance technology on the scale of months and years, these questions stop being so different.

It is one thing to solve a very well-posed constraint problem on the scale of an hour, where there is a finite number of ideas you need to look through. That might feel extremely different from solving something very open-ended. But even if you want to solve a very well-defined problem on a much longer scale, like proving a Millennium Prize problem, that suddenly requires you to think about what fields of mathematics or other sciences might possibly be relevant.

Are there inspirations from physics that I must take? What is the entire program that I want to develop around this? Now these become very open-ended questions, and it is actually hard for our own research. If all we cared about was reducing the modeling loss on a given dataset, measuring progress on that—asking whether we are actually asking the right questions in research—becomes a fairly open-ended affair.

Anjney Midha

Yeah. I think it also makes sense to think about what the limits of “open-ended” mean. A while back, Sam tweeted about some of the improvements we were making in having our models write more creatively. We do consider the extremes here as well.

Right. Right. Let’s talk about RL, because it seems like since o1 came out, RL has been the gift that keeps giving. Every couple of months, OpenAI puts out a release and everyone goes, “That’s great, but this RL thing is going to plateau. We’re going to saturate the evals. The models won’t generalize, or there’s going to be mode collapse because of too much synthetic data,” or whatever.

Everybody has a laundry list of reasons to believe that the gains in performance from RL are going to tap out, and somehow they just don’t. You keep putting out continuous improvements. Why is RL working so well, and what, if anything, has surprised you about how well it works?

Mark Chen

RL is a very versatile method, and there are a lot of ideas you can explore once you have an RL system working. A long time ago at OpenAI, before language models, we were thinking, “RL is this extremely powerful thing, of course, on top of deep learning, which is this incredible general learning method.”

But the thing we struggled with for a very long time was: What is the environment? How do we actually anchor these models to the real world? Or should we simulate some island where they all learn to collaborate and compete?

Then, of course, came the language-modeling breakthrough. We saw that if we scale deep learning on modeling natural language, we can create models with this incredibly nuanced understanding of human language. Since then, we have been seeking how to combine these paradigms and how to get RL to work on natural language.

Once you do, you have the ability to execute on these different ideas and objectives in this extremely robust, rich environment given by pretraining. I think it has been perhaps the most exciting period in our research over the last few years, where we have found so many new directions and promising ideas that all seem to be working out. We are trying to understand how to compare them.

Anjney Midha

One of the hardest things about RL for people who are not practitioners of RL is the idea of crafting the right reward model. Especially if you are a business or an enterprise that wants to harness all this amazing progress you are putting out but does not even know where to start, what do the next few years look like for a company like that?

What is the right mindset for somebody who is trying to make sense of RL and craft the right reward model? Is there anything you have learned about best practices, or an approach to thinking about using this latest family of reasoning techniques? What is the right way I should think about approaching reward modeling as a biologist or a physicist?

Mark Chen

I expect this will evolve quite rapidly. I expect it will become simpler.

Jakub Pachocki

Maybe two years ago, we would have been talking about what the right way was to craft a fine-tuning dataset. I do not think we are at the end of that evolution yet, and I think we will be inching toward more humanlike learning, which RL still is not quite.

Maybe the most important part of the mindset is not to assume that what is now will be forever.

Anjney Midha

I want to bring the conversation back to coding. We would be remiss not to say congratulations on GPT-5-Codex, which just dropped today. Can you say a little more about what is different about it, how it is trained differently, and maybe why you are excited about it?

Mark Chen

One of the big focuses of the Codex team is to take the raw intelligence that we have from our reasoning models and make it very useful for real-world coding. A lot of the work they have done is consistent with this. They are working on having the model handle more difficult environments, and we know that real-world coding is very messy, so they are trying to handle all the intricacies here.

A lot of coding has to do with style and softer things, like how proactive the model is, how lazy it is, and being able to define, in some sense, a spec for how a coding model should behave. They do a lot of strong work there. As you see, they are also working on much better presets.

Coders have some notion of how long they are willing to wait for a particular solution. We have done a lot of work to dial in on the right trade-off: for easy problems, much lower latency; for harder problems, the right thing is actually higher latency to get you the very best solution. Being able to find that preset sweet spot for easier problems versus harder problems is important.

Jakub Pachocki

What we found is that the previous generation of the Codex models was spending too little time solving the hardest problems and too much time solving the easy problems. I think—

Mark Chen

That is probably what you might get out of o3 out of the box.

Anjney Midha

Maybe just on the topic of coding, since you guys were both competitive coders in prior lives. I know you have been at OpenAI for almost a decade now, but I was struck by the story of Lee Sedol, the Go player who famously quit Go after he lost to AlphaGo multiple times.

I think in a recent interview you were both saying that the coding models are now better than your capabilities, and that gets you excited. Say more about that. How much would you say you code now? If you are hands-on keyboard, you can talk about OpenAI generally, but how much code is written by AI now?

Mark Chen

In terms of coding models being better, I think it is extremely exciting to see this progress. Programming competitions provide a nice, encapsulated test of the ability to come up with new ideas in a boxed environment and timeframe.

If you look at things like IMO Problem 6, or maybe some of the very hardest programming competition problems, I think there is still a little bit of headway to go for the models, but I would not expect that to last very long.

Jakub Pachocki

Being humble.

Mark Chen

Historically, I have actually been extremely reluctant to use any sort of—

Jakub Pachocki

Tools. I just used Vim, pretty much.

Mark Chen

Old school.

Jakub Pachocki

Yeah. Eventually, especially with the latest coding tools like GPT-5, I really felt, “Okay, this is no longer the way.” You can do a 30-file refactor pretty much perfectly in 15 minutes. You kind of have to use it.

I have been learning this new way of coding, which definitely feels a little bit different. I think it is a little bit of an uncanny valley right now, where you kind of have to use it because it is exciting so many things, but it is still not quite as good as a coworker. Our priority is getting out of that uncanny valley.

Anjney Midha

Yeah. But yeah, it is definitely an interesting time.

Mark Chen

Yeah, definitely.

Jakub Pachocki

To speak to the Lee Sedol moment, I think AlphaGo was a very formative milestone in AI development for both of us. At least for me, it was the reason I started working on this in the first place.

Maybe partly because of our backgrounds in competitive programming, I had an affinity for building models that could do very, very well in these forms of contests. Going from solving eighth-grade math problems to, a year later, hitting our level of performance in these coding contests.

Anjney Midha

It’s crazy to see that progression, and you kind of imagine—or like to think—that you feel some of the feelings that we all felt too, right? It’s like, wow, this is really crazy. What are the possibilities? This is something that took decades to do, and it took a lot of hard work to get to the forefront of it. So you really do feel the implication of that: with these models, what can’t they do?

I do feel like it’s already kind of transformed the default for coding. This past weekend, I was talking to some high schoolers, and they were saying, “Actually, the default way to code is vibe coding.” I think they would consider that maybe, sometimes, for completeness, you would go and actually do all the mechanics of coding it from scratch yourself, but that’s just a strange concept to them. Why would you do that? Just vibe code by default.

And so, yeah, I do think the future will hopefully be vibe researching.

Sarah Wang

Yeah. I have a question about that, which is: What makes a great researcher? When you say “vibe researching,” there’s a big part of vibe coding that’s just having good taste and wanting to build something useful and interesting for the world. And I think what’s so awesome about tools like Codex is, if you’ve got a good intuition for what people want, it helps you articulate that and then basically actualize a prototype very fast.

With research, what’s the analog? What makes a great researcher?

Jakub Pachocki

Persistence is a very key trait, right? I think what is different about research, when you’re actually trying to—I think a special thing about research, right, is that you’re trying to create something or learn something that is just not known. It’s not known to work; you don’t know whether it will work. So you’re always trying something that will most likely fail.

I think getting to a place where you’re in a mindset of being ready to fail and being ready to learn from those failures is important. Of course, with that comes creating clear hypotheses and being extremely honest with yourself about how you’re doing on them, right?

I think a trap many people fall into is going out of their way to prove that it works, which is quite different from believing in your idea and its significance. That is extremely important, and you want to persist in that, but you have to be honest with yourself about when it’s working and when it’s not, so that you can learn and adjust.

Mark Chen

Yeah, I think there are just very few shortcuts for experience. Through experience, you kind of learn what’s the right horizon to be thinking of a problem, right? You can’t pick something that’s too hard, or it’s not satisfying to do something that’s too easy.

A lot of research is managing your own emotions over a long period of time, too. There are going to be a lot of things you try, and they’re not going to work. Sometimes you need to know when to persevere through that, and sometimes when to switch to a different problem.

I think interestingness is something you find through reading good papers, talking to your colleagues, and distilling their experience into your own process.

Anjney Midha

When I was in grad school, I was a failed machine learning researcher. I was in grad school for bioinformatics. But a big part of my research advisor’s thrust was about picking the right problems to work on, such that you could then sustain and persist through the hard times.

You said something interesting, which was that there’s a difference between having conviction in an idea and then being maximally truth-seeking about when it’s not working. Though both those things are sometimes in tension, because you kind of go native on a topic or a problem that you have deep conviction in.

Have you found any heuristics that are useful at the taste step, at the problem-picking step, that help you arrive at the right set of problems where that conviction and truth-seeking are not as much in zero-sum tension as they are with other kinds of problems?

Jakub Pachocki

Yeah, to be clear, I don't think conviction and truth-seeking are really in a zero-sum tension. I think you can be convinced, or you can have a lot of belief in an idea, and you can be very persistent in it while it's not working. I think it's just important that you're honest with yourself about how much progress you're making and are in a mindset where you're able to learn from the failures along the way. I think it's important to look for problems that you really care about and really believe are important, right? And so I think one thing I've observed in many researchers that inspired me has been really going after the hard problems, looking at the questions that are widely known but not really considered tractable, and just asking: why are they not tractable? What about this approach? Why does this approach fail? You're always thinking about what is really the barrier for the next step. If you're going after problems that you truly believe are important, then that makes it so much easier to find the motivation to persist with them over years.

Sarah Wang

And in the development of GPT-5, during the retraining phase, for example, were there any moments where there was a hard problem, the original attempts that were being made to crack that problem weren't working, and yet you found somebody persisted through that? And what was it about any of those stories that comes to mind that worked well, that you wish other people and other researchers did more of?

Jakub Pachocki

I think on the path there, along the sequence of models—both the pre-trained models and the reasoning models—one very common theme is bugs.

There are silly bugs in software that can stay in your software for months and invalidate all your experiments, in a way that you don’t know. Identifying them can be a very meaningful breakthrough for your research program.

But there are also bugs in the sense that you have a particular way of thinking about something, and that way is a little bit skewed, which causes you to make the wrong assumptions. Identifying those wrong assumptions and rethinking your frames from scratch—I think both for getting the first reasoning models working and getting the larger pre-trained models working, we’ve had multiple issues like that that we’ve had to work through.

Sarah Wang

As leaders of the research org, how do you think about what it takes to keep the best talent on your team? And, on the flip side, how do you create a very resilient org that doesn’t crumble if a key person leaves?

Mark Chen

The biggest things that OpenAI has going for it in terms of keeping the best people motivated and excited are that we are in the business of doing fundamental research, right? We aren’t the type of company that looks around and says, “What model did company X build, or what model did company Y build?”

We have a fairly clear and crisp definition of what it is we’re out to build. We like innovating at the frontier. We really don’t like copying, and I think people are inspired by that mission, right? You are really in the business of discovering new things about the deep learning stack, and I think we’re building something very exciting together.

Beyond that, a lot of it is creating a very good culture. We want a good pipeline for training up people to become very good researchers. I think historically we’ve hired the best talent and the most innovative talent, so we have a very deep bench as well.

I think most of our leaders are very inspired by the mission, and that’s what’s kept all of them there. When I look at my direct reports, they haven’t been affected by the talent wars.

Anjney Midha

I was chatting with a researcher recently, and he was talking about wanting to find the cave dwellers. These are often the people who are not posting on social media about their work. For whatever reason, they may not even be publishing; they’re sort of in the background doing the work.

I don’t know if you would agree with this concept, but how do you guys hire researchers? Are there any non-obvious ways that you look for talent, or attributes that you look for that are non-obvious?

Jakub Pachocki

I think one thing that we look for is having solved hard problems in any field. A lot of our most successful researchers have started their journey with deep learning at OpenAI and have worked in other fields, like physics or—

Mark Chen

Computer science or finance in the past. Strong technical fundamentals, coupled with the intent to work on very ambitious problems and actually stick with them. We don’t purely look for, “Who did the most visible work or is the most visible on social media?”

Anjney Midha

Yeah. As you were talking, I was thinking back to when I was a founder and running my own company, and we would recruit for great engineering talent. Many of the attributes you described were ones that were on my mind then. And Elon recently tweeted that he thinks this whole researcher-versus-engineer distinction is silly.

Is that just semantic nitpicking, or do you think these two things are more similar than they actually look?

Jakub Pachocki

Yeah, I do think researchers don’t just fit one shape. We have certain researchers at OpenAI who are very productive and are just so good at idea generation. They don’t necessarily need to show great impact through implementing all of their ideas, right? I think there’s so much alpha they generate in just coming up with, “Let’s try this, or let’s try this, or maybe we’re thinking about that.”

There are other researchers who are very, very efficient at taking one idea and rigorously exploring the space of experiments around that idea. So I think researchers come in very different forms. Maybe that first type wouldn’t necessarily map into the same bucket as a great engineer, but we do try to have a fairly diverse set of research tastes and styles.

Anjney Midha

Yeah. Say a little bit about what it takes to create a frontier-winning culture that can attract all kinds of shapes of researchers and then actually grow them, help them thrive, and make them win together at scale. What do you think are the most critical ingredients of a winning culture?

Jakub Pachocki

I think the most important thing is to make sure you protect fundamental research, right? You can get into this world with so many different companies these days where you’re just thinking, “How do I compete on a chat product or some other kind of product surface?” You need to make sure that you leave space and recognize the research for what it is, and also give researchers the space to do that. You can’t have them being pulled in all of these different product directions.

So I think that’s one thing that we pay attention to within our culture, especially now that there’s so much spotlight on OpenAI, so much spotlight on AI in general, and on the competition between different labs. It would be easy to fall into a mindset of, “We’re racing to beat this latest release,” or something.

There’s definitely a risk that people start looking over their shoulder and thinking about what these other things are. I see it as a large part of our job to make sure that people have the comfort and space to think about what things are actually going to look like in a year or two, what the really big research questions are that we want to answer, and how we get to models that vastly outperform what we see currently, rather than just iteratively improving in the current paradigm.

Anjney Midha

Just to pull on that thread more around protecting fundamental research: you guys are obviously one of the best research organizations in the world, but you’re also one of the best product companies in the world. How do you balance that, especially since you’ve brought on some of the best product executives in the world? How do you balance that focus between the two while protecting fundamental research and continuing to move forward the great products that you have?

Mark Chen

Yeah, I think it’s about delineating a set of researchers who really care about product and who really want to be accountable to the success of the product. They should, of course, coordinate very closely with the research work at large. But I think people understanding their mandates and what they are rewarded for—that’s a very important thing.

One thing that I think is also helpful is that our product team and broader company leadership are bought into this vision of where we are going with research. Nobody is assuming that the product we have now is the product we’ll have forever, and that we’ll just wait for new versions from research. We’re able to think jointly about what the future looks like.

Sarah Wang

One of the things that you guys have done is let such a diversity of different ideas and bets flourish inside OpenAI that you then have to figure out some way, as research leaders, to make it all make coherent sense as one part of a road map. You’ve got people over here investigating the future of diffusion models and visual media, and over here you’ve got folks investigating the future of reasoning when it comes to code.

How do you paint a coherent picture of all that? How does that all come together when there might be, at least naively, some tension between giving researchers the independence to do fundamental research and then somehow making that all fit into one coherent research program?

Jakub Pachocki

Our settled goal for our research program has been getting to an automated researcher for a couple of years now. We’ve been building most of our projects with this goal in mind. This still leaves a lot of room for bottom-up idea generation and fundamental research in various domains, but we are always thinking about how these ideas come together eventually.

We believe, for example, that reasoning models go much further, and we have a lot of explorations on things that are not directly reasoning models. But we think a lot about how they eventually combine. What does this innovation look like once you have something that is out there thinking for months about a very hard problem?

I think this clarity around our long-term objectives is important. But it doesn’t mean that we are prescriptive about all the little pieces. We definitely view this as a question of exploration and learning about these technologies.

Sarah Wang

Yeah. I think you want to be opinionated and prescriptive at a very coarse level, but a lot of ideas can bubble up at a finer level. Have there been any moments where those things have been in tension recently?

One provocative example could be the new image model Nano Banana from Google. It’s an extraordinary example of how lots of everyday people can unlock a lot of creativity when these models are good at understanding editing prompts. I could see how that would create some tension for a research program that may not be prioritizing that directly.

If somebody talented on your team came and said, “Guys, this thing is so clearly valuable in the world out there. We should be spending more effort and energy on this,” how do you reason about that question?

Mark Chen

I think that’s definitely a question that we’ve been thinking about for quite a while at OpenAI. If you look at GPT-3, once we saw where language models were going, we had a lot of discussions about how there were clearly going to be so many magical things you could do with AI.

You would be able to get to extremely smart models that are out there pushing the frontiers of science, but you would also have incredible media generation and incredibly transformative entertainment applications. How we prioritize among all these directions has definitely been something we’ve been thinking about for quite a while.

Jakub Pachocki

Yeah, absolutely. The real answer is that we don’t discourage someone from being really excited by that. If we’re consistent in our prioritization and our product strategy, it will naturally fall into place.

We do encourage a lot of people to be excited about building AI products—whatever kind of products they’re excited by. But I think it’s important for us to also have a separate group of people whose goal we protect: creating algorithmic advances.

Sarah Wang

How does that translate—and, just to build on Anjney’s question, into a concrete framework around resourcing? Do you think about, “Okay, X% of compute resources will go to longer-term, very important, but maybe a bit more pie-in-the-sky exploration,” versus current product and inference work? There’s also this thing in the middle where it’s achievable in the short to medium term.

Mark Chen

Yeah. I think that’s a big part of both of our jobs: this portfolio-management question of how much compute you give to which project. Historically, we’ve put a little bit more toward the core algorithmic advances versus the product research, but it’s something that you have to feel out over time, right? It’s dynamic.

Month to month, there could be different needs, so it’s important to stay fairly flexible on that.

Sarah Wang

And if you had 10% more resources, would you put it toward compute, or is it data curation or people? Where would you put that on the margin?

Jakub Pachocki

Good question. Honestly, I think compute—

Anjney Midha

Today, that’s a reasonable answer.

Jakub Pachocki

Yeah. I mean, honestly, I do think, to your question of prioritization, that in a vacuum, any of these things are things you would love to go and excel and win at. I think the danger is that you end up in second place at everything and not clearly leading at anything.

So I think prioritization is important, right? You need to make sure—

Mark Chen

There are some things you’re clear-eyed on: this is the thing that we need to win.

Sarah Wang

Yeah.

Anjney Midha

Yeah. But I think it makes sense to talk about it for just a little bit more. Compute sets so much of compute is destiny, in a way, right, at a research organization like OpenAI. A couple of years ago, I think it became very fashionable to say, “Okay, we’re not going to be compute-constrained anytime soon because there are a bunch of gains that people are discovering, we’re going to get more efficient, and all the algorithms are going to get better. Eventually, we’ll just be in a data-constrained regime.” It seems like a couple of years have come and gone, and we’re still in this very compute-constrained environment.

Does that change anytime soon, do you think?

Jakub Pachocki

I think we’ve seen for long enough how much we can do with compute. I haven’t really bought that much into the “we’ll be data-constrained” claim, and I don’t expect that to change. Anyone who says that should just step into my job for a week. There’s no one who’s like, “I have all the compute that I need.”

Sarah Wang

You know, historically, the job of advancing fundamental research has largely been a mandate that universities have had, partly for the compute reasons you just described. That hasn’t been the case for frontier AI. You guys have done such an incredible job channeling the arc of frontier AI progress to help the sciences. When those worlds collide—the fundamental world of university research today and the world of frontier AI—what comes out?

Mark Chen

I personally started as a resident at OpenAI. It was a program we had for people in different fields to come in, learn quickly about AI, and become productive as researchers. I think there are a lot of powerful elements in that program. The idea is, could we accelerate something that looks like a PhD in as little time as possible?

A lot of that looks like implementing many core results. Through doing that, you’re going to make mistakes. You’re going to think, “Wow, if I set this wrong, that’s going to blow up my network in this way.” You just need a lot of that hands-on experience.

Over time, curriculums have probably been developed at all the large labs in optimization, architecture, and reinforcement learning. There’s probably no better way than to try to implement a lot of those things, read about them, and think critically about them.

Jakub Pachocki

Yeah. I think maybe one other nice thing that you get to experience in academia is persistence. You have a few years, and you’re trying to solve a problem. It’s a hard problem, and you’ve never dealt with such a hard problem before.

The pace of progress is very fast. Maybe ideas tend to work out a little bit more often than they did in the past, because deep learning just wants to learn. Getting your hands on a more challenging problem for a little bit, perhaps being part of a team attacking an ambitious challenge, and getting that feeling of what it feels like to be stuck and what it feels like to finally be making progress is also very useful to learn.

Anjney Midha

How does external perception of a particular product launch impact how you prioritize something? Is it to the extent where perception and usage—in the case where they’re married, obviously there’s probably a clear directive there—but in a case where maybe they’re divorced a bit, does that impact how you think about the roadmap or where you emphasize resources?

Jakub Pachocki

We generally have some pretty strong convictions about the future, so we don’t tie them that closely to the short-term reception of our products. Of course, we learn based on what’s going on. We read other papers, and we look at what other labs are working on, but generally we act from a place of fairly strong belief in what we’re building.

That’s for our long-term research program. Of course, when it comes to product, the cycle of iteration is much, much faster.

Mark Chen

With every launch, we’re trying to aim for something that’s wildly successful on the product side. From a fundamental research perspective, we’re trying to create models with all the core capabilities needed to build a very rich set of experiences and products.

There are going to be people who have a vision of one particular thing they could build. We’ll launch it, and everything we launch, we really hope goes wildly successfully. We get that feedback, and if it’s not successful, we’ll shape our product strategy a little bit. But we’re definitely also in the business of launching very useful, wildly successful products.

Sarah Wang

It feels like, because of the completely unbridled pace of progress that we’ve just spent a lot of time talking about, a lot is going to change over the next few years. It gets really hard to predict, I imagine, 10 years out, let alone 10 months out. Through all that change that the frontier of AI is going to bring, what are some priors that you think should stay constant?

One clearly is that we don’t have enough compute. Is there anything else that you think doesn’t change—something that would be a strong, reasonably held prior as a constant?

Jakub Pachocki

More broadly than compute, there are physical constraints, including energy. At some point, not too far from now, robotics will become a major focus. I think thinking about the physical constraints is going to remain important. But on the intelligence front, I wouldn’t make too many assumptions.

Anjney Midha

Very few startups can get to the scale that you have, both from an employee perspective and a revenue perspective, and maintain the breakneck speed that you probably had seven or eight years ago when you both joined. What’s the secret sauce to doing that? How do you continue to maintain this pressure to ship as quickly as possible, even though you’re on top now?

Mark Chen

I think one of the clearest markers that we have a really good research culture, at least in my mind, is that I’ve worked at different companies before, and there’s a real thing called a learning plateau. You go to a company, you learn a lot for the first 1 or 2 years, and then you find yourself thinking, “I know how to be fairly efficient in this framework,” and your learning kind of stops.

I’ve really never felt that at OpenAI. There are all these really cool results bubbling up, and you’re learning so much week over week. It’s a full-time job to stay on top of all of it, and that’s been very fulfilling.

I think that’s a very accurate description. We just want to generate a lot of really high-quality research, and it’s almost a good thing if you’re generating enough that you’re barely able to keep on top of it.

Speaker 1

Yeah, exactly.

Jakub Pachocki

I think the development of technology is a driving force here. Maybe we would become comfortable after a few years of working in a given paradigm, but we’re always on the cusp of that new thing, trying to reconfigure our thinking around the new constraints and new possibilities that we’re going to face.

I think that creates this feeling of constant change and the mindset of always learning the new thing.

Speaker 2

One thing that came up in our research about things at OpenAI that have not changed through a lot of the change is the trust that the two of you have in each other. There was an article or profile of you guys recently in MIT Technology Review, and one of the highlighted themes was that your chemistry, your trust with each other, and your rapport are something that a lot of the people at OpenAI have come to treat as a constant.

What’s the backstory? How did you guys build trust there? How did that happen?

Mark Chen

It’s like asking you—have you ever seen When Harry Met Sally?

Speaker 1

I feel like you’re on the couch, and now you’ve got to—

Mark Chen

Yeah, exactly.

I do think we started working together a little bit more closely when we had the first seeds of working on reasoning. At the time, that wasn’t a very popular research direction to work on. Both of us saw glimmers of hope there, and we were pushing in this direction, figuring out how to make our work better.

Over time, we grew a very small effort into an increasingly larger effort. That’s where I really got to work with Jakub in depth. He’s just a phenomenal researcher. On any of these lists, he should be number 1. His ability to take any very difficult technical challenge and personally think about it for 2 weeks and just crush it is remarkable.

It's incredible that he has the wide range that he does in terms of understanding, as well as the depth where he can just personally solve a lot of these technical challenges.

Speaker 1

Now you get to say some nice stuff about him.

Mark Chen

You don't have to say anything nice about me.

Jakub Pachocki

Thanks, Mark. I think the first big thing that we did together was start seeing that this algorithm was going to work. I was thinking, how do we direct people at this? We were talking with Mark, like, “Oh, we should establish a team that's actually going to make this work.” And then Mark went and actually did this—he got a group of people working on very different things, got them all together, and created a team with incredible chemistry out of this whole disparate group. That was such an impressive thing to me.

I'm really grateful and inspired to get to work with Mark and experience that. I think this incredible capacity to both understand and engage with and think about the technical matter of the research itself is coupled with this great ability to lead and inspire teams and create an organizational structure that, in this whole mess of chaotic directions, is actually coherent and able to gel together. That's very, very inspiring.

Speaker 1

It's awesome.

Speaker 2

Well, on that note—

Speaker 1

Great note. Yeah, look, some of the greatest discoveries in science, especially in physics, have often come from a pair of collaborators, often across universities and across fields. It seems like you guys have now added to that tradition. We're just super grateful that you guys made the time to chat today. Thanks for coming by.

Jakub Pachocki

Thank you.

From Vibe Coding to Vibe Researching: OpenAI’s Mark Chen and Jakub Pachocki | BidClub