I’ve joined Anthropic

(twitter.com)

757 points | by dmarcos 3 hours ago ago

268 comments

  • 1970-01-01 an hour ago

    He moves around quite a bit. Less than 2 years on average if you take away the longest and shortest jobs. It feels like this is just a celebrity hire to help raise IPO value, and then he'll move again when the tech hits another real-world scaling wall. Expect another short stint (stunt) with Anthropic.

    • renecito 35 minutes ago

      rest & vest if he makes it to IPO

    • Rover222 23 minutes ago

      5 years at Tesla is an eternity in the tech world.

      And 2 years is probably pretty average for the whole tech industry.

      • volkk 18 minutes ago

        > And 2 years is probably pretty average for the whole tech industry.

        maybe for a fungible CRUD engineer. I think Karpathy is in a different league and I'm certainly surprised to hear this fact. I would expect someone like him to sit within a certain lab for a long time

      • StilesCrisis 8 minutes ago

        The folks I know who bounce that often are generally mis-hires:

        - barely qualified, leaving to avoid getting PIP'ed

        - overqualified/under-leveled, and moving is faster than getting promoted

      • prerok 19 minutes ago

        Depends on the country, I guess. In Europe, it would definitely not be the norm and I would definitely call previous employers if it was several 2 year stints.

        • gambiting 14 minutes ago

          If you're really in Europe then I'm sure you know that calling previous employers is completely pointless, the best you'll get is "yes this person has worked here before".

          And I work in games and 2-3 years at each company is pretty normal, with some exceptions people just finish a project and then move(or are let go, unfortunately). YMMV of course.

  • meetpateltech 2 hours ago

    Karpathy will start this week on Anthropic's pre-training team, which is responsible for the massive training runs that give Claude its core knowledge and capabilities, according to Anthropic.

    Source: https://www.axios.com/2026/05/19/anthropic-openai-karpathy-a...

    • ollin an hour ago

      Specifically it looks like he's planning to extend the ideas from https://github.com/karpathy/autoresearch into a larger effort towards recursive training improvement [1]:

      > Excited to welcome Andrej to the Pretraining team! He'll be building a team focused on using Claude to accelerate pretraining research itself. I can’t think of anyone better suited to do it — looking forward to what we build together!

      [1] https://x.com/nickevanjoseph/status/2056760504949842219

    • ed_elliott_asc 28 minutes ago

      Why do they need this when they have the next gen mythos? Surely that can manage everything?

      • cyanydeez 24 minutes ago

        You don't understand: no ones ever reading more than 1% of the training material; so they need someone who has reduced that to 0.1%. The less you know, the more you know!

  • aykutseker 20 minutes ago

    the glorified marketer framing in this thread is missing the bigger signal. karpathy publicly pausing eureka labs to join anthropic is an ai founder of his caliber effectively conceding that verticals get eaten by frontier upgrades.for everyone here building on top of foundation, that's the actual news

    • aabhay 4 minutes ago

      How serious was Eureka labs anyway? It seemed like essentially a banner for him messing around with content creation

  • tedggh 2 hours ago

    He’s a great educator and seems like a genuinely nice guy, at least on interviews. I hope he continues with his teaching career on the side, although the crazy amount of NDAs he probably had to sign may make that effort a bit difficult.

  • ryeguy_24 3 hours ago

    Funny. He foreshadowed this in a recent interview. Saying that he may fall out of touch with evolving approaches and if any of the frontier labs would have him, he’d be interested.

    https://youtu.be/kwSVtQ7dziU?t=47m50s

    • skeledrew 3 hours ago

      Someone at Anthropic watched and lit a fire.

    • ineedasername 36 minutes ago

      Good for him, his public work these last ~1-2 years has been influential for me, as I'm sure it has for others.

      I even share his concern about struggling to keep pace with the rate of change lately, and agree that frontier lab or any other such environment would certainly help with that!

      I have a weird background mix of analytic philosophy, linguistics/NLP, propaganda research, and long-term institutional data science/strategy work, which unfortunately does not make ATS systems especially low-friction as I try to jump industries.

      So I keep busy the best I can: lately building tooling around runtime observability, intent legibility, and intervention in LLM systems.

      Some small public artifacts finally going up: https://huggingface.co/spaces/anotheruserishere/Cartogemma

      Eh. Worth a shot!

  • Traster 3 hours ago

    Karpathy is probably one of the biggest names in AI, I do wonder where he fits now. He's sort of bounced around Tesla back to OpenAI back to independent. He sort of left OpenAI before it really hit the inflection point, and he was at Tesla for a long time and they didn't really deliver what they wanted on the AI side. Now he's bounced around a few places. I understand that the leaders in this market play this silly game of trying to buy up the names like trading cards but I wonder what this turns into.

    • prodigycorp 3 hours ago

      i wouldn't be surprised if he just becomes a glorified marketer for anthro.

      im also going to guess that whatever research he does would be free roam research that primarily serves to market the fact that claude was able to help perform the research.

      the visible stuff he's been working on has been mostly agent soft skills. off the top of my head is autoresearch and his the wiki knowledge stuff. nothing particularly groundbreaking, but has helped devs expand their understanding of the utility that these models can provide.

      not a diss to andrej i know he's reading this now

      • resiros 3 hours ago

        I think you are underestimating both the value of both projects (autoresearch and personal wiki) just because they are simple. I see both POCs for continuous learning / optmization on the harness layer, which in my opinion is a very interesting direction.

        I think Andrej has the experience (and now ressources) to productionize this research into something very interesting.

        p.s. called it

        > Karpathy will help launch a new team focused on using Claude itself to accelerate pretraining research — an increasingly important frontier as AI companies race to automate parts of AI development. (https://www.axios.com/2026/05/19/anthropic-openai-karpathy-a...)

        • DiscourseFan 3 hours ago

          No, these are developed off of the assumed uses of the models (predictive autofiller) rather than their actual, cognitive and potential industrial use (developing large scale frameworks for industrial production, automating systems that normally require human monitoring), and uses that we have not yet discovered, because we have not figured out all the constraints and limitations of these models. If Karpathy was in the game like he used to be, he would be on real product. Right now he’s probably so lost by the very thing he helped create that he is stuck doing these mini projects for his own personal interest, without anyone really critically engaging with his work.

      • canada_dry 3 hours ago

        > just becomes a glorified marketer

        That implies Karpathy is either dumb or desperate and he is neither of those by a long shot.

        • noufalibrahim 2 hours ago

          I don't think that's the parents implication.

          Generally, when a "good" developer has a huge public presence and reputation, that's quite valuable to a company when they're competing in a tough space. Many a time, more so than the (very high) technical skill of the developer in question.

          I've seen large funded companies gather good popular developers like pokemon cards and just have them go around give talks and write blog posts. It creates an aura around them which makes things like hiring, fund raising etc. much easier.

          So, it's not really a statement about Karpathy himself. It's more about the company hiring him.

          • newppc 2 hours ago

            Yea, I say this as a marketing agency owner, not a developer or AI researcher, that besides Sam Altman, Dario, Demis and Elon, that Karpathy is one of the most influential I follow.

            There’s a lot of value for the business world in learning AI from someone who has been at the top of their game but now is doing a general service by being a great educator and translator between the fields.

            His recent Wiki approach may be simple to devs but is certainly an aha moment for the rest of the peanut gallery paying attention!

        • swiftcoder 2 hours ago

          > That implies Karpathy is either dumb or desperate

          This kind of thing happens to big names in software all the time. Carmack going to Facebook is a prime example - he joined with the idea of using all those resources to build world-changing tech, and instead he ended up headlining conferences, and fighting a losing battle against the corporate types who were put in charge of Oculus.

          • nine_k 2 hours ago

            Hasn't Carmack solved a few serious engineering problems, making Oculus more or less the most advanced VR device? (The fact that an advanced VR device does not seem to be needed by the mass market is not an engineering problem.)

            • gruturo 39 minutes ago

              Yes - but - ironically - he did that _before_ joining them. IIRC he literally started collaborating and helping them while being at a different company.

              • StilesCrisis 3 minutes ago

                That seems surprisingly common to me. Visionary engineer has solution to problem, gets hired, solves the broad strokes in the first year, then spends N more years in meetings with exec stakeholders and worrying about schedules/hiring/financials instead of _doing the vision work_.

        • shuckles 3 hours ago

          No it doesn’t? It matches his skills to the lab’s needs. Karpathy is a media personality, manager, and educator far more than he is a hands-on researcher.

        • Swizec 2 hours ago

          > That implies Karpathy is either dumb or desperate and he is neither of those by a long shot.

          No it implies that he is more valuable for being famous than the hands-on work he can produce. This is the IC endgame

        • HarHarVeryFunny 2 hours ago

          He already stated his motivation a few months ago in an interview with Dwarkesh - basically saying that he might join one of the big labs, for a while, to keep in touch with frontier research.

          Andrej seems like a great guy, but him joining Anthropic feels a bit like a transactional relationship (rich old guy marries hot young chick). Anthropic get a "glorified marketer", and he gets a front row seat at SOTA LLM dev 2026. I don't think they hired him expecting he's going to change the direction/pace of their research.

          • jimbokun an hour ago

            An employment relationship is transactional??? Like the employer pays money and the employee provides labor???

            Scandalous!

            • HarHarVeryFunny 44 minutes ago

              Maybe poor choice of words on my part - what I meant was that this doesn't appear to be a case of AI research co. hires AI researcher to do AI research.

              A regular marriage is transactional to some extent too right, but not quite the same as Anna Nicole Smith marrying a 90yr old.

              As an aside, an Indian guy I used to work with once explained to me how traditional Indian arranged marriages, like his own, work, and they are HIGHLY transactional. It's not just a matter of same caste, same social status etc, but an explicit trade off. In my co-worker's case he cheerfully told me how his wife was very dark skinned, therefore considered not that attractive/desirable (to other Indians!), but her family had money and social status so it was considered a fair trade for a nice looking boy like himself!

        • afavour 3 hours ago

          I don’t think it does. I think it’s better phrased that he is marketing rather than a marketer. He can do whatever he wants to do, in return Anthropic gets to say “hey, this guy works with us!”

          • ghaff 3 hours ago

            Different people have different wants and needs. It's perfectly reasonable to work on some interesting projects and to be something of a figurehead.

        • nozzlegear 2 hours ago

          I don't know anything about this person, but want to point out that renown and validation is something that most (all?) humans crave. That doesn't make them dumb or desperate, it makes them normal.

        • kmaitreys 3 hours ago

          > https://gist.github.com/karpathy/442a6bf555914893e9891c11519...

          Last thing I saw Karpathy talk about was this, which I find hard to believe that it came from a smart person.

          • carterschonwald 3 hours ago

            oh my, i see what youre saying. at this point youd hope everyone has realized that the best way to keep models more reliable is to force them to stay honest via very very string static typing as a feedback loop. bags of text with hyperlinks certainly fail that measure

          • pixelsort an hour ago

            Yes, that's probably his dumbest public idea to date. Given that this GPT repos and parts of autoresearch are brilliant I'm sympathetic. I think he's earned the right to exhibit mild expressions of AI psychosis at this point.

            And, my objection was that he clearly had no understanding of the supply-chain risk he was worsening by advocating widespread use of Obsidian for agentic engineering tasks.

            Since his announcement, Obsidian has taken proactive steps to mitigate the risks, or at least study threat model. Hopefully, they will implement proper RBAC or something before someone else with his visibility announces an even more irresponsible half-baked idea.

          • ModernMech 2 hours ago

            I love how a ton of the replies after it are "I built exactly this with an LLM", even using his name in the repo.

        • piker 3 hours ago

          Being a singular influencer in this space, at this time, may be more valuable than a lot of successful VC-backed startups over the last few decades.

        • UncleMeat 2 hours ago

          Andrej is a smart guy. You don't get into Stanford for grad school without that.

          But he has always been known for his communication rather than his research. He got famous by putting out a (very well made) course on machine learning that was available to the public. Since graduating he hasn't exactly delivered on revolutionary new stuff at the businesses that employed him but he has continued to be extremely good at communicating thoughts about the current and future state of AI. Businesses want that and he knows that he can deliver that.

        • prodigycorp 3 hours ago

          i mean he did publicly openly solicit interest to work at a frontier lab so he can be closer to what's going on https://www.youtube.com/watch?v=kwSVtQ7dziU&t=2870s

          • alfonsodev 2 hours ago

            And it makes a lot of sense, doesn't?.

            There are things that you can only explore and learn in those places, for obvious reasons.

            I don't know his personal life goals but he's a great communicator and educator, if this decision makes him more up to date, and allows him to create even more relevant content then is something everyone will benefit. I understand the risks of being bias toward one company and not the other, but if you look at the content he created so far, he always talk principle first and specific tool later.

            I think people here should give him the benefit of the doubt.

            • prodigycorp 2 hours ago

              i meant everything out of respect for andrej. it's no different from how a visiting scholar can be great marketing for an institution

        • coldtea 3 hours ago

          Greedy is enough. Neither dumb nor desperate needed for this.

        • foobiekr 2 hours ago

          Anyone who would voluntarily work for Musk when he went obviously has things going on that aren't great.

      • tayo42 2 hours ago

        It's also hard to any hard research on your own without resources. At best a few gpus can only go so far right now.

      • AIorNot 2 hours ago

        yes stop kidding yourself that he is going in as a tech leader in terms of providing technical innovation..at that stage its your persona that matters not the tech (sure I think Anthropic is going to listen to his advice..but its a transactional marketing win primarly)

        his value to Anthropic is his influence..he has over 2 million followers, and value is that he is the Top influencer for AI right now, like it or not. just like Selena Gomez might be for top for women age 21-29...

        Every AI nerd I know reposts his (very thoughtful posts and projects mind you) like religon

      • 0123456789ABCDE 2 hours ago

        > i know he's reading this now

        meanwhile in the real world:

          claude --permission-mode=auto --model=opus -p '/onboard --user=karpathy'
        • baq 2 hours ago

          expectation: in the real world the CLI will be replaced by an agent prompt and to get to the shell you'll have to ask 'get me bash dammit'

    • Ifkaluva 2 hours ago

      He may not be a brilliant researcher, but he is a brilliant teacher. I am glad he is joining Anthropic so he can stay up to date with the next round of things that he will teach :)

      • amelius 20 minutes ago

        It is a pity we don't hear more about the truly brilliant researchers.

        All we hear is Altman, Musk, ...

    • hart_russell 2 hours ago

      The self drive on my Tesla is damn near perfect. I haven’t driven my car in around 6 months.

      • HarHarVeryFunny an hour ago

        FWIW while Karpathy was at Tesla he was basically working on the vision component. The actual driving component (using vision as an input) was originally all C++. They may have started migrating parts of the driving component from C++ to neural networks while Karpathy was there, but most of it happened after he left in 2022, with the big switch being FSD 12 in 2024. User reports from before/after FSD 12 are like night and day.

        • B1FF_PSUVM an hour ago

          I was never convinced by the "vision only" approach - I don't see the point of throwing out or refusing to have additional data from other sensors.

          I suppose that with modern ML they can just toss it in the blender and reap the benefits ...

          • HarHarVeryFunny an hour ago

            I'm not talking about vision (cameras) vs lidar etc, just the Tesla FSD architecture that separates the "vision" component (turning camera/sensor inputs into symbolic road/sign/vehicle/pedestrian/etc data), and the driving component which takes the vision data, plus current location and destination, and uses that to actually drive the car - switch lanes, make turns, avoid obstacles etc etc.

    • synergy20 2 hours ago

      I somehow felt he, along with Andrew Ng, are very few well-known AI experts that are left behind on the money side during the AI-gets-me-super-rich crazy time, unfortunately.

      • gordonhart 2 hours ago

        Andrew Ng has been investing in AI startups for almost a decade, I would be very surprised if this rising tide left him behind.

      • liuliu 2 hours ago

        Only if you think B is an important thing. He is easily > $100M from Tesla.

      • dzonga 2 hours ago

        I can't speak for Andrew Ng - but my take is he did out of pure altruism - love. just in terms of advancing free education e.g coursera & the free machine learning courses etc he brought to the masses.

        not everyone does things to be rich.

    • pier25 3 hours ago

      > He sort of left OpenAI before it really hit the inflection point

      Sorry I'm out of the loop... What inflection point are you referring to?

      • helloplanets 3 hours ago

        Karpathy left OpenAI in 2017 for Tesla, came back from Tesla in 2023 and left again in 2024.

        So pretty sure the original poster is talking about 2017.

      • shuckles 3 hours ago

        GPT-1 presumably, which was released a year after he left. Prior to focusing on GPT, OpenAI was pursuing a lot of research directions.

      • nashashmi 3 hours ago

        The inflection is Right before its meteoric rise.

    • efavdb 2 hours ago

      Tesla self driving works. I don’t know if Karpathy deserves credit for that or not.

      • slaw an hour ago

        Yes, no driver needed at all. Your Tesla makes money for you while you sleep at home.

    • ArchieScrivener 2 hours ago

      Or they collude by hiring each others engineers as a way to create manageable competition and information sharing outside their fiduciary duty to shareholders.

    • outside1234 3 hours ago

      DevRel or whatever we call that now

    • nashashmi 3 hours ago

      Some people are good at developing the sciences. Others are good at developing commercial products.

      And tesla is not a good place for science development. Tesla is structured from narcissistic mindset: results driven, cynical, and position-based. This doesn’t bode well for long term sciences.

      I dont see how he could be helping anthropic

    • redanddead 3 hours ago

      I read this as a bad sign for Anthropic. Relying yet again on more hype instead of improving products.

      OpenAI’s hiring recently has been much stronger, whether through luck or structure. The “no-name” guys have actual taste. I love that. I don’t care that they’re no-names.

      I don’t know Karpathy personally, I won’t speak bad about a man I don’t know. I hope he makes CC better. I just read this as hype. My point is that there’s nothing he has that an empowered no-name product manager doesn’t. It’s like Alex Wang at Meta. That acq didn’t redeem Meta. They actually lost LeCun. Where’s Llama today?

      Regardless of what Anthropic’s share price is, OpenAI has been fucking killing it recently. I don’t take particular pleasure in saying that, i’ve been a google and gemini guy for years

      My lens is meritocratic. My experience is as an extremely heavy user of both company’s full suite of products in the range of 5 digits per month. My interest is better products not hype.

      • sigmar 3 hours ago

        >OpenAI’s hiring recently has been much stronger, the guys have actual taste.

        Can you cite specifics? "I won't speak bad about someone, but also won't speak good about others" resulted in a comment that seems to contribute nothing

        • redanddead 2 hours ago

          I judge them from a meritocratic lens.

          I’m hoping Karpathy will make Claude Code better, in the meantime I’m super happy seeing a small product manager like Tibo fucking crushing it on Codex

          • woah an hour ago

            Where are you following the comings and goings of small no name product managers like it's a baseball team?

            • sigmar 4 minutes ago

              clearly the employees that tweet the most must also have the best contributions to R&D... </sarcasm>

            • redanddead an hour ago

              Hahaha wdym? Where have you been dude?

              Joking aside, there are small communities pushing codex and AI to the bleeding edge of what's possible.

              Here I'll give you an example. The last few updates from Boris at CC have been tweaks to the system prompt to make it use less compute, effectively making the system dumber, making it tell you to go to bed. I mean come on! Tibo has been impressing me, bc they're building the things these small communities are building.

              One of the things these bleeding edge guys and girls have been working on is a /goal feature, essentially ralph loops. Codex released it as a feature the other day. I can't help but be impressed. As an ex-pm, this is product management.

              Then you take a look at what the Chinese are doing on their own forums, and it just makes what Google and Anthropic are doing look outdated. OpenAI feels competitive, which I like. What's coming will not be kind to us, we adapt or we die.

      • vondur 3 hours ago

        It feels like these companies are constantly going back and forth on who has the best product constantly. It's such a dynamic time with how fast they are both working.

      • scottyah 3 hours ago

        OpenAI seems to be dumping a LOT of money into marketing on social media at least.

        • xmcp123 2 hours ago

          To be fair, Mythos is probably one of the most significant marketing pushes in the industry in both impact and investment.

          I am sure there is an element of reality in it's capabilities, but there's also a significant amount of "We don't have the compute to handle this at scale", and "look look, we have the best model. It's so good that you can't even compare it to other models. That is how good we are."

          • redanddead 2 hours ago

            I’m noticing a real disconnect in the user base about this

            The Claude maximalists that can never see any wrong in anything and the users that care about actual capability

            These guys are going to be in for a rude awakening when the Chinese are steamrolling us with data centers you can see from space and better models, Amodei will tell you that himself

            • xmcp123 an hour ago

              Hey, it's not like the Chinese have a serious demographic crisis they can't cope with, and their only hope is to significantly increase productivity per worker.

        • redanddead 3 hours ago

          I’ve been using Claude and Codex extremely heavily and use adblockers so I don’t see them

          • Avicebron 2 hours ago

            I think they mean the paid shills

            • redanddead 2 hours ago

              Whenever I see a user base turn against actual users or imply censorship or discredit actual experiences it always ends in a death spiral: Deny -> Product stops improving -> Censor -> Die

              Adapt or die

      • j_bum 3 hours ago

        Curious what you mean by killing it? Products? Model quality?

        • redanddead 3 hours ago

          Dude, both! Codex is going to eat Openclaw… i don’t love saying that.

          What codex is a few steps away from doing is changing fundamentally a lot of workflows.

          Remote codex with their computer use is basically you at your computer doing things, 24/7.

          Then they added gpt images 2.0

          what codex can do, in a few more product iterations, is show you visually side by side “would you prefer this (A) or that (B)” in a series of questions. This is what some open source researchers have been up to. That’s no longer guessing.

          I’m not trying to hype a company i have no stake in, but they’ve been killing it.

          It’s extremely compute intensive, but also very satisfying.

          • scottyah 3 hours ago

            Codex and openclaw are both "owned" by openai, and most of the features have been in claude code for awhile now.

            • redanddead 3 hours ago

              To be fair, Claude Dispatch was really cool. I had to wait a good 3 weeks for Codex to come out with remote

      • misiti3780 3 hours ago

        really - what am i missing?

        • redanddead 3 hours ago

          It just feels like more hype instead of product focus.

          Example 1, just from top of my mind, Composer 2.5 released today. Go look at their benchmark.

          Composer 2.5 and Opus 4.7 ranked around the same, meanwhile gpt-5.5 was miles ahead.

          You wouldn’t have caught me dead using a gpt model 2 years ago

      • felixgallo 3 hours ago

        Out here in the actual demonstrated world, OpenAI has been leaking quality people like a sieve, has not yet demonstrated anything remotely similar to 'taste', and is led by a sociopath (https://www.newyorker.com/magazine/2026/04/13/sam-altman-may...), so I think you can rest easy.

    • Veserv 3 hours ago

      I mean, you would think that all those people he killed as the person in charge of deploying knowingly dangerously defective self-driving software for profit would have had a impact. But executives seem to just skate on killing customers to line their own pockets these days. Just "following orders" I guess.

      • Barbing 3 hours ago

        He deployed, not just developed?

        • Veserv 2 hours ago

          Yes, he was [1] director of AI and Autopilot Vision at Tesla, directly poached and reporting to Elon Musk on the most important headline feature of Tesla directly managed by Elon Musk.

          He had both the technical and executive authority to determine if the product was fit for customer usage. He had direct executive responsibility for the product on the road between 2017-2022.

          If he, the lead architect and executive responsible felt the product was dangerous and then he was overridden, he can not get away with claiming he was “just following orders”, he had a moral duty to not sign-off or quit otherwise he is clearly complicit in deploying a dangerous product for his own self-enrichment.

          When people talk about engineering ethics, this is literally a completely uncontroversial textbook example. The only way you accept this is if you do not want ethics in engineering.

          Furthermore, he was extremely hireable with numerous job opportunitys available to him. He would not be destitute or even particularly worse off if he did quit for ethical reasons. Any self-preservation defense is also invalid.

          [1] https://techcrunch.com/2017/06/20/tesla-hires-deep-learning-...

          • Barbing 2 hours ago

            Andrej Karpathy is a reason* Tesla doesn’t have Lidar and thus is a reason Tesla self driving isn’t nearly as safe as it could be?

            He heard Elon say “I drive with eyes, so cars just need eyes” & shipped?

            :( happy to have my impressions corrected (but I was kind of pretending it’s a 2026 scenario where you could slap Lidar, ship a Waymo, if you were just willing to spend the friggin MONEY - 2017 was too early for most any “self” driving IIRC)

            -

            *edit - in a scenario where his refusal to skip Lidar catalyzed change

          • Avicebron 2 hours ago

            I don't the comp sci has the same requirements for ethics coursework like mechanical, aerospace, etc..

            • browsingonly 2 hours ago

              Passing a mandatory class != believing in its message and acting on it.

              Unfortunately, rather important courses like engineering ethics have become lumped in with mandatory DEI objectives and similar 'grievance studies' requirements, classes which many suffer through quietly, regurgitating the Correct responses while they count the minutes until they can get back to more substantive classwork. Some undergraduates may unfortunately gloss over ethics just as they gloss over lectures on privilege.

    • espadrine 2 hours ago

      His goal could simply be to learn SOTA architectures.

      When rumors started that GPT-4 design would be kept secret, he likely wanted to know what architecture it would be. Perhaps he left Tesla, waited out the non-compete clause, and joined OpenAI to learn its details.

      When Mythos dropped, there were hints that it had a new architecture. He might similarly want to know how it works.

      Either way, there is enough cross-lab hiring that those secrets eventually get known, but only by the labs.

  • dwa3592 3 hours ago

    Karpathy is talented and to me he always seemed like someone who would be against building something like skynet. Anthropic is lucky to have him.

    • asdev 2 hours ago

      If you look at his recent content, I think he's gotten LLM Psychosis unfortunately

      • ladberg 2 hours ago

        Hypothetically you take the leading expert of a field and say "they believe in their own field too much - far more than I do as a layman - and therefore surely must have psychosis."

        Why should I trust that your assessment is correct? Is it likely to ever be correct in the case of a doctor/mechanical engineer/athlete/economist/whatever? So why do so many people insist that an incredibly intelligent AI researcher has fallen into some obvious trap?

        • halfmatthalfcat 8 minutes ago

          Because we're paying attention? A lot of "smart" people are lost in the AI sauce, grandstanding that they are going to change the very fabric of society. Generally leading experts in other fields are not making the same hyperbolic, self-indulgent, embarrassing statements.

    • cute_boi 3 hours ago

      Honestly, if Skynet were possible, Anthropic would probably build it first and claim they had to because OpenAI is bad.

      • NitpickLawyer 2 hours ago

        And then regulatory capture it to death. Seriously, Anthropic is top notch in their coding models, but they are not the good guys in the tech vs. product for humanity's sake debate.

        • dwa3592 2 hours ago

          yeah but i don't think there's any large org which is 'good guys'. Anyone who wants to become a monopoly or very very large is probably suffering from some sort of a neural condition (psychosis, if plural) which we will study 100 years from now. Right now they are rewarded but I think our little minds forget to take the negative externalities into account.

          I am working on a short story on this topic which is set in 2100s, where most humans have internalized the concept of 'having enough' after the great conflict. But some specimen have started to show signs of this syndrome again, and neuroscientists and psychologists are grappling to understand where it originated from.

          • amunozo 41 minutes ago

            The difference is that Anthropic pretend they're the good guys, while the rest don't.

      • scottyah 3 hours ago

        Anthropic has drawn lines with the most powerful organization in the world, that OpenAI capitulated on within hours for a small contract.

    • Robdel12 2 hours ago

      Which is funny because Anthropic is the SOTA that the DoD has been using for more than 2 years. They already have blood on their hands with helping the Iran attack. He joined it

      • bayarearefugee 2 hours ago

        Anthropic is also now complicit in poisoning Memphis by using Colossus.

        There is no room for trying to make any of these companies or their employees out as 'the good guys'.

  • gyomu 2 hours ago

    We are in the early stages of AI. Anthropic is Altavista and OpenAI is AskJeeves or something. 10-20 years from now the scene will be unrecognizable and all of this will be inconsequential but at the same time it is the fondation on which tomorrow is built.

    • TrackerFF an hour ago

      Well, one big difference now is that you need to billions to become the next big player. The barriers to entry are incredibly high, if you plan on competing against the big players.

      Of course, there could be some future lab or startup which completely revolutionizes the field by going for some approach that doesn't require a boatload of money to train a model, but for now, we're stuck with the LLMs and the costs they come with..

    • Sohcahtoa82 2 hours ago

      OpenAI will be the Yahoo of AI. Starting off as a household name, but fades to irrelevancy as competitors take over.

    • UltraSane 2 hours ago

      Google is much better positioned long term with their TPUs and separate enormous revenue from advertising.

      • destring 2 hours ago

        Not so sure on the advertising front. B2C is now mostly social media, and Google doesn't own any. That's why the pivoted hard to YouTube shorts to try and capture that segment, but it is nowhere near TikTok or Instagram. Case in point, Meta's advertising revenue is predicted to surpass Google's this year.

      • arealaccount 2 hours ago

        So Google remains as Google

    • make3 27 minutes ago

      That's a funny thing to say as time is infinite, and we're at the early stages of every single thing. Reasoning in time dynamics is useful though to be clear

    • croes an hour ago

      So we get ad flooded useless AIs?

    • Barbing 2 hours ago

      But do I leave all my money in US index funds?

      • jjordan 2 hours ago

        It's the safer bet.

        • Barbing 2 hours ago

          You are now my financial advisor

      • brcmthrowaway 2 hours ago

        Which funds?

        • Barbing 2 hours ago

          Searching “invest $10[0]k into USA index funds low fees”, the Vanguard funds that come up! (Vanguard sounds a little special, maybe they do good marketing. Ah, per Wiki: “Vanguard is owned by the funds managed by the company and is therefore owned by its customers.”)

          Looking familiar: VTI or VOO, VTSAX or VFIAX

          • littlexsparkee 2 hours ago

            you might consider VXUS for int'l / hardware exposure (20-40% of total)

        • moffers 2 hours ago

          Maybe just like one of each.

  • thoughtpeddler 32 minutes ago

    Wondering what the plan is to steward Eureka Labs, LLM101n, and whatever else was being cooked up. As a fellow educator, was very much looking forward to seeing how this would have evolved things.

  • chrishare 39 minutes ago

    Selfishly, I hope this doesn't reduce to 0 the amount of time he spends doing educational content, which seems like a particular strength of his. I presume this means Eureka Labs is not releasing any product or course.

  • ryzvonusef 3 hours ago

    Karpathy's career arc feels similar to Jim Keller's; a butterfly flitting from one flower to another, gathering experiences and creating magic everywhere they go.

    • ambicapter 3 hours ago

      I don't think Karpathy has nearly the portfolio of accomplishments. I think of him more as an educator.

    • kingkongjaffa 2 hours ago

      > creating magic everywhere they go

      Like specifically what has he done?

      • davidatbu 2 hours ago

        I can spare a minute :). This isn't exhaustive because this is just stuff I know of, obviously.

        - At Stanford, Led research on the first (to my knowledge) crop of joint image/text models. Super widely cited work.

        - At Tesla, led their whole self driving effort for a while, came up with critical techniques that allowed them to make progress (e.g., the concept of "auto labelling": using a much larger NN to generate training data with which to train smaller models that could fit in the on-device compute. IIRC, Elon said they would not have been able to make progress without this insight).

        I'm not sure his educative efforts for the mold of what you're looking for, but if so, the course he designed at Stanford (and availed online):for neural networks, as well as his blog posts, (most famous of which, to my knowledge, is "the unreasonable effectiveness of LSTMs"), made a huge impact on educating a generation of tinkerers and researchers.

        • momojo an hour ago

          Add microgpt to that list

        • 10xDev an hour ago

          It wasn't LSTMs, it was RNNs.

          • davidatbu an hour ago

            Thanks for correcting the title I misremembered. Fwiw, the article did culminate with LSTMs: https://karpathy.github.io/2015/05/21/rnn-effectiveness/

            ---------------------

            EDIT: It looks like you deleted the part of your post I quoted below. So feel free to ignore my question about it, I guess.

            ---------------------

            Not sure what you mean by

            > Shows how much you know

            Do you mean that the fact that I misremembered a word on the title suggests that I know very little about Karpathy's contributions to the field of neural networks?

        • kingkongjaffa an hour ago

          Thank you!

          I was more looking for signal that him + Anthropic might yield something beyond a step-change from Opus 4.7 (disappointing so far). We have not gotten to use Mythos yet, I wonder if that will become Opus 5 or something.

  • zitoshi 2 hours ago

    interesting signal about where AI is...

    It actually feels like a signal that it is in a tapering phase.

    As in, if it was in a growth phase a freeform, solo - collab with who you want, would be more beneficial. But in a tapering phase you'd want structure and to be in the private formal meetings.

    just an idea

    • TeMPOraL an hour ago

      Or, you could fit the exactly opposite story to the same data:

      Growth is when you want to have institutional support, to be at the tip, backed by infinite money and best compute infra, and benefit disproportionally from compounding. Conversely tapering is when you're best flying under the radar, and there's plenty of value both in ideas and in hardware, as the leading players shed excess they can't support anymore, ...

    • KeplerBoy an hour ago

      Feels like the opposite.

      Stuff is still happening and you need to be part of a big lab to see it. NanoGPT is fun but at some point you need that datacenter.

  • HarHarVeryFunny an hour ago

    I wonder if the timing of this, coming so soon after the Musk/Anthropic data center deal is just coincidence or not?

    From Karpathy's various interviews I get the impression that he wants to leave the door open to working for Musk again at some point, perhaps on TeslaBot.

    With Musk for now regarding Anthropic as a partner (or at least an enemy of his enemy), that seems to mean that Karpathy joining them is less likely to anger Musk than might otherwise have been the case. Who knows, maybe Karpathy was involved in brokering this data center deal?

  • daft_pink 43 minutes ago

    Looks like they sprinkled their ipo money on him.

  • orliesaurus 2 hours ago

    Anthropic is on a roll:

    - best harness overall (well maybe until like a month ago when gpt5.5 and codex came out)

    - acquires bun

    - acquires stainless for SDKs

    - deal with Elon for compute

    - karpathy

    what else did I miss?

    • CAP_NET_ADMIN 2 hours ago

      1. Best harness? It ranks the worst with Opus in terminalbench: https://www.tbench.ai/leaderboard/terminal-bench/2.0?models=...

      2. Mixed for the entire bun ecosystem, especially with the Rust, Anthropic-focused rewrite

      3. Good, because Anthropic's SDK was one of the worst ones to use.

      4. Deal with the guy that has a shit ton of compute around wasting money because no-one uses Grok and was frequently calling Anthropic "Misanthropic".

      https://i.redd.it/kp4uy1egspjg1.png

      5. Glorified marketer whose probably greatest achievement in pushing AI forward was instructing on CS 231n and coining the term vibe coding.

      Yeah, on a roll.

      • porphyra an hour ago

        You're not entirely wrong but your snide tone is annoying and unsuitable for this platform. Anyway,

        1. Claude Code is widely used and beloved despite not benchmaxxing on the terminalbench like these harnesses that nobody has ever heard of or uses.

        5. Karpathy's contributions are way more than CS 231n and coining vibe coding. In terms of pedagogy, his "zero to hero" videos, nanoGPT, etc, are all great. For actual work, he also built a great org at Tesla.

        • sunaookami 29 minutes ago

          NTA but Claude Code is everything but beloved. It's incredibly meh, very buggy (to that extend that customers were literally losing money), heavily vibecoded and all around just... bad. I appreciate it for kickstarting the whole terminal agent thing and I would still use it but only because Anthropic mandates it for using Claude with your subscription.

    • nashadelic 2 hours ago

      they invented MCP, Skills, made these standards open so anyone could build the harness around them.

      • xmcp123 2 hours ago

        MCP is barely an invention. It's a fuzzy spec detailing a pretty obvious design pattern.

        • mirekrusin 37 minutes ago

          LLM is barely an invention. It's an auto complete we had years before.

          • xmcp123 11 minutes ago

            Also I'm a little bitter, prior to this I never had trouble getting my username on websites. No one used this combination of 4 letters for godamn anything.

            All gone, for shitty typeahead

      • orliesaurus 2 hours ago

        this pre-IPO is gonna be incredible

      • bigyabai 2 hours ago

        To be fair, MCP and Skills do not have any source code. It is fundamentally impossible to release either standard without making it open.

    • dizhn an hour ago

      Tim Abbott the Zulip guy.

  • aizk 3 hours ago

    AI news and ESPN feels interchangeable sometimes.

    • clickety_clack 3 hours ago

      I’ve never seen names be big in the industry in this way before. It used to be founders, now it’s personalities.

      • sph 3 hours ago

        I'll reserve judgement until I've heard what ThePrimeagen and simonw have to say about this.

        • christophilus 2 hours ago

          This gave me a good laugh because we don’t know what to think until Jon Blow says, “Here’s the thing.”

        • yomismoaqui 2 hours ago

          I'll reserve judgement until I've read what HN commenters have to say about this.

      • TeMPOraL 3 hours ago

        At least in this case we're talking about someone doing something useful and providing tons of value to the field, not about people being praised for starting a company and raising money.

    • ssgodderidge 3 hours ago

      Agreed! OpenAI even bought TBPN [1], who many have equated to ESPN for business. I think that even if Karpathy didn't add any new ideas to Anthropic (unlikely), adding him to the team is an interesting message to give to the market

      [1] https://openai.com/index/openai-acquires-tbpn/

      • Danox 3 hours ago

        Maybe he adds some semblance of stability? Anthropic probably is trying to sell it itself as the sane alternative to OpenAI with their IPO coming up choose us we are responsible.

    • tclancy 2 hours ago

      Ooh, if there is a market for someone to be the Stephen A Smith here, I am waiting by the phone. I AM WAITING BY THE PHONE I mean.

    • drewbitt 3 hours ago

      At least with sports teams they entertain me and I can be a fan. For "X person joins Y company" I don't have a reason to care.

      • Danox 3 hours ago

        But with the financial community, some semblance of stability is always important particularly with an IPO coming up. Choose us we don’t have a sideshow going on with Elon like the other guys, OpenAI.

      • DANmode 3 hours ago

        I’m the opposite.

        My “entertainment”, or intrigue, comes from the ability to impact my life.

        Other people sporting struggles to catch my attention longer than the play itself, for that reason.

    • zibw 3 hours ago
      • sph 3 hours ago

        That's exactly where my mind went. ~113 comments at the time of writing to discuss an announcement that a guy is starting a new job.

    • mupuff1234 3 hours ago

      Wouldn't be surprised if companies with too much "superstar" talent suffer from the same issues as sport teams usually do.

    • sfsh an hour ago

      "I'm taking my talents to South Market"

    • bitwize 3 hours ago

      But you won't be stuck in Bristol, CT covering AI news.

  • yanis_t 3 hours ago

    Good for him. His learning materials are unmatched, but I don’t think there was a viable path with his educational company.

  • AtNightWeCode 4 minutes ago

    Hope he can teach Claude how to not be so lame at coding.

  • nightski 2 hours ago

    Anyone else fearing Anthropic more and more each day? Not from a perspective that they are doing so well, but rather that it's like an industry tornado, sucking up and destroying everything in it's path.

    • raincole an hour ago

      Name three things they destroyed?

      • ray_v an hour ago

        1-3) my free time (too busy using Claude Code)

      • nvme0n1p1 an hour ago

        1. Bun

        2. Stainless

        3. Coefficient Bio

        bonus #4. the global economy

        • raincole an hour ago

          1. Bun is right there on Github. You can download can use it right now.

          2. Sure, that's one thing.

          3. Coefficient Bio is not a thing. They don't have a product. Ever. It's just Anthropic hired 10 people for a ridiculous amount of premium bonus. (Time will prove it's a bad decision, btw)

          4. (snorts)

          • ahknight an hour ago

            I believe the Bun reference is the Rust "rewrite" that came up recently.

  • markerbrod 3 hours ago

    I wonder what will happen with EurekaLabs now. I checked their X account, but the posts are now restricted. However, the background picture... that old AI-generated image feels surprisingly cringe (https://x.com/EurekaLabsAI/header_photo), incredible how much GenAI has improved since that image was created.

  • domrdy an hour ago

    Congrats Andrej. Let me know if you are looking for someone to take over Eureka Labs. We were in the same WoW classic guild. domrdy on x. We can duel for it :). Also, I need $10M if any VCs are reading this.

  • neilv 2 hours ago

    Anyone want to comment on what it's like to work for Anthropic (as an ordinary software/AI engineer, not as Karpathy)?

    Compare and contrast with working at OpenAI, Google, etc.?

    • ahknight an hour ago

      That nobody does hints at the NDA structure.

  • 423abaf 3 hours ago

    He is citing R&D? I have always been under the impression that he is an image recognition etc. expert rather than an LLM expert.

    So, does Anthropic pivot to military tech or pretend to do so before the IPO?

    Or is this simply a deal where he uses his formidable influencer skills for Anthropic and gets to cash in on the IPO?

  • bilsbie 3 hours ago

    He should have done his own lab. He seems like someone capable of it and might bring some unique ideas.

    • qq66 2 hours ago

      If you don't actually have the desire to build, lead, and manage a large organization, this is a terrible idea for technical geniuses. A guy like him will instantly raise $1 billion which means hiring dozens of people, which means tons of interviews, management, performance review, planning, board meetings, etc etc.

      It's good that there are avenues today for people to make tens or hundreds of $m in salaried positions at companies so that they don't have to do that stuff to get paid their value if they don't genuinely want to.

    • Aboutplants 3 hours ago

      Two years ago I’d agree, now he probably wants access to the immense capacity they have where if he were to start a lab from zero now, the ramp up to frontier pushing would require a lot more time. I don’t he needs the money as it is, and wherever he were to go would certainly make it worthwhile financially. Some people may just be cool with a couple hundred million dollars in their lifetime

    • JumpCrisscross 3 hours ago

      > He should have done his own lab

      Which raises the question: what can he do at Anthropic that he couldn't on his own?

      • TrackerFF 3 hours ago

        Seems to me that you need incredible amounts of money to be competitive in the frontier model arena. I don't know how much money Karpathy has to spend, but I'd imagine that the money needed would almost certainly mean investors with deep pockets.

        And then there's the uncertainty, will the AI "wars" be some winner-takes-all situation? Will the smaller labs eventually be acquired by the bigger ones, will they simply wash away if there's a crash?

        I don't know. If you can land some exceptional gig at the big firms, maybe the financials are good enough to not start your own lab. Minimizing risk, and all that.

        EDIT: Assuming such a startup would focus on frontier models.

        • JumpCrisscross 3 hours ago

          > you need incredible amounts of money to be competitive in the frontier model arena

          This is my assumption.

          > there's the uncertainty, will the AI "wars" be some winner-takes-all situation? Will the smaller labs eventually be acquired by the bigger ones, will they simply wash away if there's a crash?

          He's Andrej Karpathy. He could wait to let the winner surface. Obviously better to get in with the winner earlier. But worse to get on the wrong team versus on the right team late.

      • shuckles 2 hours ago

        He can be at the frontier while just having a regular job. Every other option is a lot more work.

      • UltraSane 2 hours ago

        Access to a million GPUs?

      • skywhopper 3 hours ago

        Make a lot of money.

    • gk1 3 hours ago

      It’s not enough to have unique ideas. You need capital, compute, people, distribution, customers… There’s huge appeal to joining a place that has all those things and lets you pursue your unique ideas without worrying about all that.

      • amunozo 3 hours ago

        I'm pretty sure Karpathy can have billions of capital if he wanted to.

  • mellosouls 3 hours ago

    Karpathy is a terrific communicator and populariser of the LLM landscape, and I do hope this isn't going to mean his work in that regard now gets dropped, or dropped into a private Anthropic-only void.

    • jaccola 2 hours ago

      I mean he is basically an influencer at this point? I guess this is a marketing play and we will be hearing more from him than ever.

  • gyoridavid 2 hours ago

    What's your guess, how much stock / cash he got?

    (I also assume they gave him a ton of independence in R&D)

  • baigy an hour ago

    Congrats to Karpathy. I wonder whether this is the right time to join Anthropic. Looks like it from the outside.

    But - unpopular opinion - I believe Anthropic is one open-source model away (that can code well) from a massive revenue/stock crash. We're already seeing Claude's cost escalate to astronomical levels. Most coding work is medium difficulty in the grand scheme of things. So the future is an open source model small enough to fit in your local 16GB VRAM, giving you a Claude Code like experience for zero token cost. That's going to wipe out most of Anthropic's current revenue base. It does have several cool initiatives in the pipeline, but bad things happen once your bread and butter is threatened (just ask OpenAI).

    • energy123 an hour ago

      I heavily weight the explosive revenue growth of Anthropic and OpenAI above speculation about what open source models may do in the future. I've heard for over 6 months that there's no moat but the revenue growth keeps proving it wrong. Opinions have to adjust to meet reality. There's some kind of moat, for now at least, that is not being appreciated in the conventional wisdom.

      (If they were just burning Capex and nobody wanted to use their product or their gross margins were bad then I'd agree with you)

      • baigy 41 minutes ago

        Your opinion also holds weight. In fact, I've been in your camp throughout, only having changed my mind in the last few weeks. I've seen legitimate instances of Anthropic costs surprising medium to large enterprises, so that's a demand shock. On the supply side, I've seen some very intense benchmarking going on at r/LocalLlama (the #1 community for opensource LLM tinkering IMO). It just feels like we're in a powder keg right now.

    • ahknight an hour ago

      Model diversity is really their weak point. OpenAI has embeddings, audio, image, video (RIP). Anthropic has ... Claude. It's a great model for a lot of things, but it's super risky to just have one thing you're good at (from a business standpoint).

    • codemog an hour ago

      GLM 5.1 is almost there. These guys should be scared. The valuations these companies have is insanity.

      • ahknight an hour ago

        Not in extended sessions, I've noticed. It's good at targeted edits, but not "build a small tool that XYZ".

    • nekooooo an hour ago

      those models are light years away from opus or sonnett right now though -- is the context problem really solvable?

      • zackangelo an hour ago

        absolutely not, take Kimi K2.6 for a spin

  • syngrog66 12 minutes ago

    I have respect for Karpathy. Not for anyone who made Claude or promotes it. So this is a shame. But I can't fault anyone for accepting an offer with (I assume) lots of 0's in the dollar part.

  • maxnevermind 28 minutes ago

    Andrej has decided to become a billionaire. Anthropic is preparing for the IPO. I wish they IPO soon, let everyone see how the earnings look like.

  • rvz 3 hours ago

    The big question is... Why now? What happened to Eureka Labs?

    Maybe the IPO potential was just too great to ignore and maybe AGI (A Giant IPO) is around the corner.

    • f311a 3 hours ago

      Pressure, a lot of researchers believe LLMs will be able to self-improve. It's a good time right now to make some extra money.

      I, personally, don't think there will be a better time for researchers to make so much money in a few years in any future of LLMs.

    • reducesuffering 3 hours ago

      AGI around the corner. Comparatively little point educating people instead of machines

      • whywhywhywhy 3 hours ago

        If someone knew AGI was around the corner they'd be buying an island and a yacht not taking on a job.

        • Sol- an hour ago

          But surely being part of the birth of AGI would be more interesting than sitting on a yacht, which you can do for the rest of your life post AGI?

          • whywhywhywhy 40 minutes ago

            The implications of what AGI would do to the economy has a high chance of mass civil unrest. Just the announcement could set it off. If you had the resources you won’t want to be around for it.

  • bigbuppo an hour ago

    I would like to announce I've retired. The tech industries are screwed and the future is paper.

  • stephc_int13 3 hours ago

    I have been impressed by some of his work, especially on the vulgarisation and simplification. Excellent communicator and engineer. But I am a bit more skeptical about his taste and vision.

    Leaving OpenAI to work for Elon Musk was a poor move, and AFAIK his work on CV at Tesla did not bring anything groundbreaking, unfortunately probably the opposite (the bet on camera-only driven system did not pay off) and his talks about the approach would indicate that his whole idea to make it work was nothing more than hill-climbing.

    Also, his over-reaction to the whole Claw thing was a bit ridiculous, in my opinion.

    I don't see him as a Scientist in the field, but more as an efficient tinkerer.

    • annexrichmond 2 hours ago

      > the bet on camera-only driven system did not pay off

      This is a pretty unsubstantiated claim. Tesla is now launching robotaxis at a fraction of the cost of Waymos, in part because they don't need all the Lidar.

      • stephc_int13 an hour ago

        Let's say it is an opinion.

        But Tesla has been promising full self-driving "next year" for quite a long time now, and it seems they are stuck at the "95% there" stage basically forever.

    • ausbah 3 hours ago

      i think his “fame” in the past few years has been creating teaching materials, projects, etc with lots of nuanced informative takes around the LLM space

  • bcapchickadee 2 hours ago

    We can expect more "vibe coding", "summoning ghosts" like expressions in the future now officially from Anthropic. I need him to add more videos to his channel on agentic coding. Looks like that won't happen anytime soon.

  • taco_emoji 15 minutes ago

    And now, a message from an actual deck chair on the Titanic

  • jpcompartir 2 hours ago

    Great person and great company

    I hope he still gets to do some educative stuff on the side too

  • MangoCoffee 2 hours ago

    good name recognition for Anthropic mega IPO. everything Anthropic does now is all gear toward its IPO from buying Bun, Stainless, getting big name AI guy to join...etc.

  • lysecret an hour ago

    Honestly happy he’s back at a foundation lab. He will have insane impact there. Of course one of the best educators in the world it’s a bit sad he gave up building and education tool.

  • hansmayer 2 hours ago

    Who cares mate?

    • sawjet 2 hours ago

      This is an extremely valid opinion.

  • frellus 3 hours ago

    Sort of makes me sad, but . . . everyone has a price.

    • helloplanets 3 hours ago

      Not about money, but knowledge. The frontier of the field is no longer accessible through arXiv or research papers only.

      One thing is that the companies are holding on because of competitive advantage, and I think another is that AI is such a politically polarizing topic that actually being open about everything is risky for the companies, wanting to avoid controversy.

    • LatencyKills 3 hours ago

      I worked for MS and Apple for 20 years and heard that opinion constantly; i.e., "People only work there for the money."

      I have no idea if Andrej "sold out" but perhaps he realizes that if he wants to work on the cutting edge alongside talented people, with a seemingly endless budget, Anthropic is a good choice.

      I chose my employers for the same reason; the compensation was secondary.

      • surgical_fire 2 hours ago

        MS and Apple. Infinite resources, plenty of smart people that consider compensation to be secondary (I remain skeptical, but choose to entertain the idea nonetheless), and the software output is incredibly, unbelievably, comically bad.

        There's some poetry there that I am unable to capture with words.

        • LatencyKills 19 minutes ago

          I understand where you are coming from, but at least when I was there, we were still trying to develop solutions that had never been implemented at that scale before. I helped create the first version of Visual Studio (Boston). People tend to forget that even by the 90s we still didn't really understand how to solve a lot of the main technical problems. That's what I loved about the work. Everything seems easy/obvious after the fact. I'm sure that everything you create is absolutely wonderful and perfect. ;-)

          With regard to compensation: like Karpathy, I had already earned enough to be comfortable for the rest of my life. Once money stopped being the primary driver, I was able to focus on what made me happy. Building things, even if you don't like them, brought me happiness and fulfillment. I hope Andrej finds the same at Anthropic.

        • Barbing 2 hours ago

          Apple’s software defects can be comically bad. Software overall though, you may overstate.

  • photochemsyn an hour ago

    Looks like the one sector of the commercial AI world that will outlast the open source - local hardware transition is the military-industrial sector. I wonder what kind of classification-security rating is needed these days for onboarding?

    “According to reports from The Wall Street Journal and The Guardian, the AI model Claude, developed by Anthropic, was used in the initial U.S.-Israel military operations against Iran in late February 2026. The system, integrated into a platform developed by defense contractor Palantir, assisted with intelligence analysis, scenario planning, and targeting for strikes that resulted in the death of Iran's Supreme Leader, Ayatollah Ali Khamenei”

    https://biggo.com/news/202603032121_Anthropic_Claude_AI_Used...

  • Freedom2 2 hours ago

    Why is this title not editorialized like others when it's ambiguous?

  • amazingamazing 3 hours ago

    Money always wins.

    • United857 2 hours ago

      As a OpenAI founder he already is long past the point of money being a consideration.

    • resiros 3 hours ago

      I don't think this is true. He strikes me as a person motivated by curiosity and interesting problems.

      • lucketone 3 hours ago

        Still, one can buy lot of interesting problems with that money.

    • Sol- 3 hours ago

      Come on, he definitely has more money than he needs given his past employers. For someone with his creative output, he probably just enjoys having an environment to build and explore.

      • moralestapia 3 hours ago

        Your argument contradicts itself.

        If money was not an issue he could just build that environment for himself.

        • skeledrew 3 hours ago

          The overhead of maintaining and running things isn't interesting to most creative folk. They'd rather others deal with the minutiae (managing a company, etc) so they can focus on their thing.

        • 0123456789ABCDE 3 hours ago

          i can play by myself, or i can join some friends, and make the play more joyful

        • HDThoreaun 3 hours ago

          No, money is not the only barrier to building things. I think karoathy could build his own lab if he wanted, but it would be years of doing things he doesn’t want. Why waste time running a business when he’d rather be researching?

        • CooCooCaCha 3 hours ago

          Do you have any idea how much it costs to build a frontier model and how much money it takes to enable R&D at the cutting edge?

    • martingalex2 3 hours ago

      It's the only way he could get more tokens beyond the Max 20x plan lol.

    • bell-gwen 3 hours ago

      True.

  • bicepjai 3 hours ago

    Great communicator. It’s sad that he had joined a closed llm org. I would have expected him to join forces with someone else releasing open-source models rivaling chinese model landscape. Capital always accumulates to the capital holder in capitalism :)

    • scottyah 2 hours ago

      Hopefully he gets them to opensource some models, in the same way that Google does.

      • msp26 2 hours ago

        hell will freeze over before anthropic release anything meaningful to the public

  • wg0 2 hours ago

    Immense respect for Karpathy but are these people that optimistic about AI?

    I mean short gig, few million dollars for Karpathy so makes sense for him but others should read the Cloudflare's report about the super scary model that Anthropic wouldn't release because they love humanity more than their balance sheet.

  • dakolli an hour ago

    He's a good educator, sometimes. But these days it seems like he's mostly gone of the deep end of being an LLM salesman.

  • NoImmatureAdHom an hour ago

    Andrej: Guys, thank you for the interest but I'm really focused on this education thing rn

    Anthropic: Okay, let's add two zeroes

    Andrej: I am very excited to join Anthropic!

    (I do not blame him, I think this is reasonable, I find the whole money-falling-from-the-sky thing amusing :-)

  • gdiamos an hour ago

    Smart move

  • foofyter 2 hours ago

    Well at least he knows what not to do now.

  • christkv 3 hours ago

    Somebody got showered with stock options.

  • enraged_camel 3 hours ago

    Pretty big talent win for Anthropic. Karpathy is one of those people who was working on AI before it became "a thing," and he's definitely both a thought leader and influential practitioner today.

    • HarHarVeryFunny 2 hours ago

      Not exactly .. he was at the forefront of computer vision (CNNs, image captioning) for a while during the ImageNet era, then joined OpenAI in 2015 but left for Tesla in 2017 before they released GPT-1. During Karpathy's time at OpenAI they were still working on games. He left Tesla in 2022, briefly rejoining OpenAI, but this was after OpenAI had already released ChatGPT (GPT-3.5), so he missed the first hand experience of the whole AI=LLM explosion.

  • shevy-java 2 hours ago

    Guys ...

    Skynet is winning.

  • kasince2k 2 hours ago

    whatever happened at Eureka labs?

  • Marciplan 2 hours ago

    hahahaha

  • SilverElfin 2 hours ago

    Recently on the all in podcast, they talked about how Anthropic is probably the next big monopoly. Given how quickly they have been growing and all of the products they are pushing out rapidly (even if they are sloppy), the acquisitions, and the people they are hiring, it feels like that may actually end up being true.

    But what is the solution? I don’t think it is safe for a society built on free speech and other liberal values to have a couple extremely powerful companies controlling all our information and imposing their rules and their politics on top of us. It was bad enough under the FAANG companies. This will be worse.

    Personally I’m not comfortable with how much power Anthropic is accumulating. And with them partnering shamelessly with Elon Musk to use a datacenter powered by potentially illegal natural gas turbines, I feel like Dario is just not trustworthy.

    • eieiewq 2 hours ago

      Imagine taking their word as gospel lmao.

  • wood_spirit 3 hours ago
    • Barbing 3 hours ago

        Andrej Karpathy - @karpathy
      
        Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.
      
        May 19, 2026 · 3:05 PM UTC
  • Dyympps 2 hours ago

    didnt he foreshadow this in a recent interview? lmao

  • ai_slop_hater 3 hours ago

    My personal update: just quit playing modded Minecraft. Thinking of downloading Apex Legends. What is everyone doing?

  • bell-gwen 3 hours ago

    Well, I am listening.

  • ciwrl 3 hours ago

    very interesting news... we are living in exciting times.

  • richard_chase 3 hours ago

    This guy is the next Ted Bundy.

  • ThundeChile 2 hours ago

    Someone who already over a year ago said that he barely touches keyboard does not really have my confidence as a tech person.