Ask HN: Do you know of any company that went back to hand-written code?

This is intended as a question about the current phase of the LLM hype cycle, and, at the same time, as a reality check about whether reluctance to rely on LLMs is economically viable for an average developer.

You've definitely seen that many companies progressed from "use LLMs for anything and everything" policies to limiting budgets and scopes of approved LLM usage. It wouldn't be unexpected to see that some companies might decide that generating more code faster doesn't meaningfully contribute to their bottom line, and forego LLMs in favour of human authoring, but does it ever happen?

I'm not trying to point out any (de)merits of the new way of software development, I simply want to know if there are many/any companies that went back to the old ways.

59 points | by antipurist 1 hour ago

19 comments

  • jaccola 34 minutes ago
    I was using tabnine in 2020, I used copilot autocomplete + ChatGPT, then Claude Code. All this to say, I willingly adopted each wave.

    Having said that, for all our startups “interesting” code I use no AI, not even tab complete. For a few reasons:

    - having derived the code and built a mental model is something like 90% of the work, the code artefact being 10%. (You can probably verify this yourself, if you’ve implemented something once and then someone deleted it all, you could rewrite it MUCH faster the second time).

    - once I have this model / vision in my mind, I’m streaming it from my mind into reality via code and having code suggestions pop up breaks that flow state for me.

    - using Claude code even on throwaway scripts can mask problems. Why is doing this thing so difficult that it needs an AI to write the code? And usually when I’m writing those scripts I have a thought or insight about the system. in other words it’s nice to have that low stakes time.

    - models are still frustratingly bad at spatial reasoning and I don’t see this improving anytime soon, which is a problem for a lot of graphics code.

    - the code models produce still isn’t what I’d consider great code; subjective of course but it’s our product and we think having great code in our core technology is well worth it in the long term!

    I do still use Claude code on various commoditised pieces (account UI, etc) and I use Claude as a great search engine, though its explanations of complex topics still kind of sucks and a human blog is almost always better.

    We are a small company of 15 engs.

  • gamerDude 58 minutes ago
    In my startup, I am currently in consideration for doing this exact thing. The interesting part is it's not really the AI that's causing the issue. It's the ease of my developer to make a mess, either with messy code or feature bloat.

    After figuring out the exact product we need with some very quick development cycles with AI, we now have some problems that I can't keep under control because of AI. So, currently under consideration to rewrite the core functionality without AI so we can keep it simple, understandable and slower to change.

    The interesting part is that AI could do this, but managing developers with AI has become very difficult to get them to slow down and build stable simple things.

    • jbs789 12 minutes ago
      Yeah I see the same thing. Also shows up when people produce an “analysis” largely driven by AI and they haven’t really thought it through. They/we are outsourcing their thinking.
    • Cameri 7 minutes ago
      Check out AI-DLC or another structured development workflow for your team and stick to it. If you’ve got devs: not using any structured workflow, or using a variety (speckit, openspec, superpowers, their own) it’s going to be hard to control the quality of the development process itself and its outputs: you are just producing slop.

      What many businesses are going through is the industrialization of software development.

    • cyanydeez 44 minutes ago
      I think I definitely see the problem as a solo dev. I can just wing it with refactors and new tests, and all manners of sloshing about. But if I tried to do this with just one other person, they'd be pulling their hair out trying to understand why the last time they had to understand the code has completely shifted.

      There definitely going to be a lot of fortune 500 companies absolutely wrecked by the amount of changes to their code base that no one will be "responsible" for because none of the workers will really know if it was their agent that changed something.

      There could be some outliers who found the correct tools at the right time, but I don't think they'll suddenly be thrust into the money, because good code is definitely not the only thing that lets people succeed.

    • fy20 47 minutes ago
      It just sounds like accumulated tech debt? And the faster you ship new features, the faster it accumulates.
    • watwut 48 minutes ago
      > The interesting part is that AI could do this, but managing developers with AI has become very difficult to get them to slow down and build stable simple things.

      That is mutually incoherent. If AI can reliably do it, developers who reliably did it before AI would reliably did it again.

      Sounds like AI cant reliably do it and your developers struggle to control its outputs.

    • conartist6 38 minutes ago
      Of course. You've described a company with no team.

      What you've said also makes clear why nobody would have an incentive to play like a team player. You have this comprehension work you think is important and you've already devalued it by saying that humans would be a waste if AI could be used.

      If I were a human working for you I would conclude that regardless of your exact words, your actions create the conditions whereby it is far safer to try to get the AI to bullshit its way through things than to risk trying to do them well as a human. You clearly articulate here that the bullshit is all you care for. If that is what will satisfy you most readily, why would anyone working for you aim higher anymore?

    • gilrain 56 minutes ago
      > I am currently in consideration for doing this

      Try “I am considering”.

      • rpdillon 25 minutes ago
        In a situation where you are an editor and focusing on the clarity and the brevity of the writing, I think this is a fantastic suggestion.

        Hacker News has long ago decided that making comments on the quality of the writing in the comments is not welcome. Correcting spelling, correcting word usage, changing phrasing, and making other suggestions to improve the grammar of a post is not something that Hacker News readers want to encounter in the comments section.

        It bothers me every day because there are gobs of cases where the writing is horrible, but I understand why the rule exists. It would make the comments section insufferable if everybody were just correcting each other's grammar the whole time.

    • adamtaylor_13 54 minutes ago
      This is a leadership problem, not an AI problem. I have the opposite situation: I don't think about code "messiness" anymore. I trust my developers to ship the right thing because we communicate constantly about what our goal is and why we're doing it.

      Solve the leadership problem and the AI thing becomes an advantage instead of a problem.

      • rpdillon 40 minutes ago
        This is correct. It's a giant red flag in GP that they're worried about their developers making a mess with AI. That's an issue of the developers' judgment not being any good, not a problem with AI.
        • adamtaylor_13 27 minutes ago
          If your developers aren't focusing on what's important to you, that's a leadership problem, not an AI problem.
  • pluc 54 minutes ago
    Ford did: https://www.forbes.com/sites/joetoscano1/2026/06/30/ford-hir...

    So did Commonwealth Bank of Australia and IBM: https://www.cnbc.com/2026/07/01/employers-who-laid-off-worke...

    And I'm sure many others who didn't publicize it because they have to keep this circular economy going.

    • sajithdilshan 49 minutes ago
      The original question was about developers going back to manually coding without using AI. The link you posted is not about it. IBM replaced its Human Resources team with AI and hired them back. They didn’t remove AI usage in development and went back to manual coding.

      Please read your sources completely before posting them only reading the title

      • quaintdev 34 minutes ago
        I was surprised to see IBM on that list
        • sajithdilshan 23 minutes ago
          me too, till I read the article linked. As far as I know IBM actually encourages using AI, they have a really good youtube channel (ibmtechnology) that explains AI concepts and usages
    • rpdillon 43 minutes ago
      Ford did not. They hired back veterans to better train the AI.

      > COO Kumar Galhotra said Ford had been over-relying on automated quality systems without getting results, per Bloomberg. The returning engineers rebuilt the data pipelines feeding Ford's AI training, mentored junior staff, and reprogrammed the automated systems they had originally been brought in to replace.

      Similarly with Commonwealth Bank and IBM, which are cited in your second link. None of these companies are saying they're not going to use AI and they're going to go back to manual labor. What they are saying is that they laid off workers prematurely.

      The big lesson is highlighted well by IBM's head of HR, which is you can use AI, but you have to continue to invest in humans:

      > “If we don’t continue to invest in entry-level hires, what happens in three-five years?,” IBM’s chief human resources officer, Nickle LaMoreaux, said at a Charter AI Summit in New York. “There’s no pipeline; the well simply dries up,” LaMoreaux added.

    • dirkc 48 minutes ago
      > circular economy

      I get what you mean, but in general circular economy means something different, positive in my opinion. Here is what wikipedia has to say:

      > a model of resource production and consumption that involves sharing, leasing, reusing, repairing, refurbishing, and recycling materials and products, to extend product life cycle for as long as possible

      In the EU it is a hot topic for a lot of non-profit and social innovation work

      • chuckadams 45 minutes ago
        I think the term GP was looking for was "circular financing", which has far fewer positive connotations.
    • anonym29 51 minutes ago
      Rehiring large numbers of people after AI-motivated layoffs is not the same as getting rid of LLM-generated code and going back to hand-written code as a whole.
    • rokob 52 minutes ago
      No they didn’t. Did you read either of the things you posted?
  • PikachuEXE 32 minutes ago
    My company hasn't switched at all... does that count?
  • markus_zhang 52 minutes ago
    We don’t have a no-AI policy but I’m trying to hand roll some code, because it is useful for interviews. It is very difficult to memorize the exact syntax unless I hand write code everyday.
    • mrdw 50 minutes ago
      What's your grade?
  • Decabytes 38 minutes ago
    One think I think is strange about the m programming world we live in now is the mythologization of pre llm code. As if people weren’t copying code from stack overflow, auto completing their way through APIs using intellisense, intellicode, tab nine, or checking in code there didn’t properly test or understand
    • pockybum522 25 minutes ago
      There is a big difference between intellisense and LLMs. I've never used intellisense to input something I wasn't already looking for/about to type out. It just saved me remembering the exact wording and/or keystrokes.
  • btbuildem 32 minutes ago
    My employer is encouraging AI adoption across the board, to the point of basically making tokenmaxing part of performance KPIs. I think they're pushing headlong into disaster, but they are not the kind of people to take advice, or admit mistakes.

    I use AI coding tools both at work and in my hobby projects. It very clear to me they're nuclear-powered footguns, and we have a long, long way yet in developing practices, structures and workflows that will enable true benefits while minimizing the absolutely toxic baggage/fallout/side effects.

    I look at the big corp push for AI adoption as another instance of boards of directors choosing the large investors / their own personal gain over the success of the corporations they govern (first instance being the "back to the office" push in attempt to shore up commercial real estate). I think the circular economy of the AI bubble has spread far and wide, and we're watching a lot of invested players trying to keep it going.

  • sajithdilshan 59 minutes ago
    I don’t think that would ever happen. AI as a tool made the life so much easier removing initial inertia.

    I agree that we still haven’t figured out what’s the best way to use AI tools, but over the time it would mature and people would come up with patterns, conventions, and design principles so the quality of what is produced will be maintained or increased while keeping the productivity gains.

    • lacedeconstruct 55 minutes ago
      Yeah I cant imagine my job without it anymore, in my hobby projects I dont really use it because its more about learning new stuff but for work I dont really care
      • piyuv 51 minutes ago
        The key part is “but for work I don’t really care”
        • lacedeconstruct 48 minutes ago
          No! the key part is "they dont't care why should I" ?
      • conartist6 51 minutes ago
        That's so depressing, and a real loss for your employer. Even if they neither know nor care that you are now sandbagging them, you still are. You aren't making real gains because you're tossing out value of equivalent or greater worth (your learning and engagement)
        • 63stack 36 minutes ago
          Most places I worked at cared very little for quality code, there was much more pressure on shipping fast even if it meant incurring technical debt, crap performance for end users, or developers leaving due to legacy code accumulation that nobody understood anymore.

          I'm glad there is a tool that let's these companies have even shittier code shipped even faster. The faster they burn down the better.

        • alchemism 41 minutes ago
          This seems the right place in the discussion to mention The Gervais Principle, a legendary piece of business writing if you haven't heard of it. https://ribbonfarm.com/2009/10/07/the-gervais-principle-or-t...
        • infermore 43 minutes ago
          You can only learn and engage so much in a day. In my head, it can be healthy to shift from tiring yourself out via work to tiring yourself out at home. You're not sandbagging them, you're setting boundaries on how much you're willing to do. If this is a problem for the employer, they can act accordingly.
        • flohofwoe 43 minutes ago
          But that's obviously exactly what the employer expects, I don't see the problem tbh ;)
          • conartist6 29 minutes ago
            I'm with you except that the economy will crash when it turns out everyone stopped creating real value. ...and in the mean time every real product I have to use is getting worse.
    • boesboes 45 minutes ago
      It will happen once everything breaks and we have an entire generation of drooling idiots spamming prompts. AI is 100% trash and it will only get better at deceiving you into thinking it isnt.

      Every single person I talk too that is enthusiastic about AI is so because they can't code for shit. Sure, then the AI seems better. But it never really is. Learn to code, that inertia you are talking about is the technical debt. It will drag you down into the abyss eventually

      • sajithdilshan 39 minutes ago
        You sound like an angry old man yelling at a television. I can code and have been doing it for 15 years before AI. If you don’t like AI that’s totally fine and don't be dogmatic, but then again the people who doesn’t change with time are left behind in time, maybe that’s why you’re so angry
  • adamtaylor_13 56 minutes ago
    In what context would generating code faster not be a desired outcome?

    Assuming of course everything else stays the same (quality, etc.)

    • c2h5oh 49 minutes ago
      I think that question hinges on the second part of your comment and should be answered as:

      Does anyone know any company that went back to hand-written code because it decided drawbacks of ai generated code or some other concerns outweight the output benefits?

    • probably_wrong 49 minutes ago
      Lines-of-code has long been accepted as a terrible measure for code quality, and I believe it has been strongly correlated with poorer code quality.
      • adamtaylor_13 27 minutes ago
        No one is advocating for lines of code here.
      • samlinnfer 47 minutes ago
        It's correlates directly with business objectives.
    • nubg 51 minutes ago
      I think most AI doomers will tell you that the quality of their code is better than LLM-generated code.
      • c2h5oh 43 minutes ago
        I did witness ai output advantage dwindle as codebase grew in a team of experienced devs who switched to 99% ai generated changes.

        The last time I've checked ai still had an edge adding new features, but the team collectively lost the project knowledge and any problem discovered that llm could not fix took significantly longer to correct - they were effectively working on a new to them codebase.

    • cyanydeez 39 minutes ago
      It's so weird how "assuming" is like watching super man hold a train back from a little girl on the railroad tracks.
    • flohofwoe 39 minutes ago
      Shitting out lots of code faster was already possible before (just hire more interns who do it for free heh) the question is at what quality and is more code in less time really the biggest problem in professional software development that had to be solved?

      LLMs have their uses, but large scale code generation is IMHO the least interesting. And even when LLMs are used for code generation, I feel like progress has been reset to the early 60s and people are now rediscovering all the failed software development approaches (eg "spec-driven" is pretty much the equivalent of "waterfall", I'm now waiting for UML diagrams to make a comeback as the next big thing with an "agentic engineering" label slapped on ;)

      Classic interactive "vibecoding" with quick turnaround times (but much quicker than now please, don't make me wait and let me slip out of the flow) might actually turn out to be the most useful way to build software with LLMs (or let's better say "prototypes"). Because everything else currently looks like we're building up too much bureaucracy around the software development process again, just in time when we got rid of that shit (via an absurd amount of pseudo-human-language "skills", "rules", "context", "memory", ...) like it was common in the 70s when the work was split between "software architects" who only do the high level design, and "implementers" who only bake that design into code. This was obviously a stupid idea and I don't know why the "AI bros" seem to be so keen on repeating that mustake.

      Every approach that builds a "human language specification" that's separate from source code written in a much more precise programming language is doomed to fail (eg the code is the spec!), and that's nothing new, we've known this for decades, but that brain virus of "upfront software architecture" always keeps creeping back into the minds of people at the first opportunity.

      • adamtaylor_13 25 minutes ago
        It's fascinating how people jump straight into their biases, making all sorts of inferences that were never mentioned.

        Where did anyone advocate for "large scale code generation"? LLMs are a fantastic way to go from, "We thought this this feature" to "It's shipped and in people's hands". That could've been 100 lines or 1,000 lines but that's not the point.

  • quantumwoke 43 minutes ago
    Not for code, but my wife is a doctor and has gone from using AI scribes back to manually typing out notes and has multiple friends who've done the same. Turns out the gains were eroded by having to check the work and turn verbose prose into an actual note.
    • i2km 21 minutes ago
      Exactly. It fascinates me when I'm emailed long AI transcripts of meetings with the disclaimer "generated by AI. Be sure to check for accuracy".

      Like, did somebody seriously think through the meaning and implication of that disclaimer and still write it?

  • amelius 51 minutes ago
    Do you know any company that went back from local AI to centralized AI?
    • fra 45 minutes ago
      the number of companies using local AI for development is too small to draw any conclusions from.
  • i2km 52 minutes ago
    I'm running a startup and we deliberately don't use AI for development. We only use it for review.

    We're working in a really deep area where having full understanding of our code is more important than speed.

    Besides, in this area, clients getting one whiff of AI code would be an immediate deal-killer

    • absoluteunit1 46 minutes ago
      Out of curiosity - what space are are in?
  • greenchair 1 hour ago
    Best use cases are along the periphery: security checks, performance checks, test generation.
    • mrdw 41 minutes ago
      tests generated by ai, especially which generates each time codex are completely useless and needed only for beautiful "44/44 tests passed"
  • huflungdung 55 minutes ago
    [dead]
  • loluturnkey 1 hour ago
    i dont know
  • jatins 57 minutes ago
    I think devs themselves won't want to work for a company that doesn't let you use Codex et al.
    • arcaen 42 minutes ago
      I dunno, I have friends and family at Meta, Roblox, $JOB, etc that would all prefer a no-AI environment. It's definitely not a majority of devs, but it's not an insignificant amount either.
    • mrdw 44 minutes ago
      I disagree. Personally, I would work in company which respects more code/infra quality than coding speed. When you vibe-deliver a lot of features per sprint after some time codebase becomes an unpredictable AI Slop.
  • tomwuu 1 hour ago
    Although code quality may sometimes suffer, no one can deny the productivity gains AI brings to software development.
    • sjducb 50 minutes ago
      You absolutely can deny long term productivity gains.

      Pre AI it took 100 engineers 5 years to get into a legacy code situation. Once you’re in a legacy code situation it’s very hard to add new features and your code is full of bugs. Fortunately most old companies with legacy code are making loads of money so they can pay the increased development costs to add features to their legacy code.

      Now with AI five engineers can build a legacy codebase in six months.

    • urbnspacecowboy 55 minutes ago
      Neither can anyone deny that 'productivity gains' are worthless if what's being produced is worthless.
      • K0balt 48 minutes ago
        If you are producing worthless code, you are choosing that outcome either by choosing to work on worthless projects, or by failing to provide the direction and constraints that cause the model to create performant, maintainable code. You can’t just yolo everything, it’s still software development, but with LLMs it’s more of an engineering and management role.
    • i2km 48 minutes ago
      I do. I deny the "gains". The "gains" will turn out to be a mirage in the medium to long term. The technical and cognitive debt incurred will be too extreme.
    • rvz 53 minutes ago
      > Although code quality may sometimes suffer

      That doesn't sound like a good thing in the long term.

      > no one can deny the productivity gains AI brings to software development.

      What are those "productivity gains"? Rapidly building hundreds of the wrong things that people do not want?

      It means you cannot stop and the competition only moves far more quicker and its a forever race to the bottom.

  • rokob 54 minutes ago
    Do you know of any company that banned IDEs and went back to plain text only editing?

    Do you know of any company that banned compilers and went back to hand written assembly?

    Do you know of any company that banned stack overflow and went back to figuring everything out?

    • ramblerman 52 minutes ago
      Someone answered the question with some actual examples. Please refrain from the hyperbole
      • rpdillon 30 minutes ago
        And those examples were not cases where companies went back to manual work after using AI. They were examples of companies regretting laying off their experts.

        The point GP is making, which I understand seems dismissive, is that AI is a tool that people are not retreating from, because it offers the same sorts of gains as previous tool improvements we've seen in the field: from compilers to IDEs to sites like Stack Overflow. I think adding AI to that group of improvements makes a ton of sense, as it has the capacity to provide similar gains in productivity.

      • i2km 47 minutes ago
        Exactly. It's quite scary that some people are reacting viciously to this type of question. There's real insecurity here...
    • ape4 48 minutes ago
      Those things don't hallucinate. (Of course, stackoverflow can be wrong but at least its peer reviewed)
    • rokob 43 minutes ago
      The best part of the downvoting of this is the answer to all of these is yes. Companies have banned all of these in the past when they were coming up. If you don’t learn from the past, …