Codeberg bans vibe coded projects

6 days ago (codeberg.org)

What is a vibe coded project? Where does it start? Cursor autocomplete? One shot Github project copies?

[Edit] The pull link is https://codeberg.org/Codeberg/org/pulls/1253/files and says

"7. You must not share projects that mostly consist of code written by "generative AI"-tools (including services such as Claude, OpenAI Codex). Such projects having an unclear copyright status (see requirements § 2 (1) 1 and § 2 (1) 3) and furthermore have little safeguards to ensure that they do not include harmful code (c.f. § 2 (1) 5)."

Whatever "mostly" means. If you autocomplete a lot, and the code written is "mostly" written by AI by autocomplete - it seems you fall under this.

I wonder what the ratio needs to be. And I wonder if auto-refactoring in Intellij is also included, because Intellij created the code and then also has "unclear copyright status" if we follow the logic.

Together this opens up more questions to me than it answers.

  • “You must not share projects that mostly consist of code written by "generative AI"-tools (including services such as Claude, OpenAI Codex).”

    Seems pretty clear to me?

    • What is mostly? >50%? >75%?

      What does "written by generative AI" means? Autocomplete? IDE-with-AI-normal-classname-completion? Everything not typed by a human.

      I personally don't find this clear at all and see many unhappy discussions in the future for Codeberg.

      32 replies →

    • If 'mostly' means over 50% you could call this clear.

      Otherwise I don't think this is clear at all.

      Otherwise, what is mostly?

      Mostly at the outset, or at any given time? Must the project move out when it goes from 49% to 51% AI-assisted code?

      4 replies →

  • Noone can discuss in good faith if the argument is: "If generated in bulk by vibe code" >> "what if I generate word by word with autocomplete".

    This is IMHO the reason why we can't have sanity, because there are people ready to hack it.

    • That's why terms and laws are written vaguely. If you're obviously on one side of the line then you're obviously on one side of the line. If you're straddling the line, your punishment depends upon how the judge feels that day. So it would be wise not to risk it.

      1 reply →

    • I don't think this is a bad-faith response. Someone might fully retain copyright while using heavy autocomplete. I don't think such a person would be banned by the codeberg policy. This is at least a little bit unintuitive.

  • Acting like the decision to ban misween coded projects is a slippery slope is like being surprised that any hosting services refuse to store and maintain petabytes of your lorem ipsum novel.

  • If this opens more questions than it answers, then you are simply discovering that you don't understand copyright (which is ok, but not the fault of the Codeberg policy).

    > You must not share projects that mostly consist [of LLM-generated code]

    > Such projects having an unclear copyright status

    There is no bright-line threshold at which a code contribution becomes copyrightable (and therefore relevant). It is a legal question determined by courts. However, nobody in practice has any difficulty determining whether their code is copyrightable.

    Codeberg is essentially asking/demanding that "your code" coincides with "code you hold the copyright for". This responsibility can be delegated to other humans, but not to LLMs.

    • That is not what their wording says. They could have said "code that is mostly covered by copyright under German law", but they chose to say 'mostly consist of code written by "generative AI"-tools'.

      Also, if you are a non-German user of Codeberg and there is a wide difference between what is covered by copyright in your country and Germany (e.g. if you are British) this might make Codeberg less of a suitable choice for you. What copyright laws matter to a particular user? Their country, the US because of its dominance and reach, or some sort of global safe/effective compromise?

      This has the feel of being done by people who do not understand how to work things to be clear legally, nor of an understanding of the consequences.

  • They could have tagged these projects with "AI" or "MixedAI", and they'd be removed from the default views. It should also make clear that such projects may have a dubious legal status. Though within businesses no one cares?

    • They are also opinionated about what they host. FOSS only. Now updated to: unvibecoded FOSS.

    • It's run by a charity as a public good. Without a profit incentive from it, there is no benefit to public from slop.

  • > projects that mostly consist of code written by "generative AI"-tools

    I guess if you auto complete line by line and actually read the code it should be gucci.

    Edit: Oh, you found it as well now. Disregard my post.

    • "I guess if you auto complete line by line and actually read the code it should be gucci."

      Not from their wording.

    • AI auto complete is still generative AI, why would that be any different? Unless you're talking about regular intellisense-like auto complete, which of course does not use generative AI at all, which would obviously be fine.

  • I’d say even GitHub copilot autocomplete is LLM aided coding. Copy pasting from a chat too is. But let’s not let the perfect be the enemy of the good. The point is the intent. We don’t want AI generated code. Put that in github if you so please.

    This is for human generated code. Some day we will have a way to enforce the amount of AI usage on its participants, right now we can just rely on an honor code and clear intent that you’re not welcome here

    • What do you mean "I'd say"? It's obviously a fact. Github copilot uses an llm for its autocomplete, so obviously it falls under llm generated code.

Germany copyright law feels like the relevant thing here - Codeberg is a non-profit based in Germany.

Best quick English language overview of status that I could find: https://www.twobirds.com/en/insights/2026/germany/when-can-a...

It looks like Codeberg want only copyrighted material in their service, so it is reliable in the future that e.g. licenses must be followed (e.g. GPL), and copyright doesn't suddenly get declared as being of the model owner, and it isn't a copy of something else.

That is a cautious reasonable position - in early days of LLM coding (3 years ago!) indemnity from model companies was a major issue globally because of the lack of clarity of the law around this. The US specifically has settled on it being (effectively?) public domain. But I don't think that is fully settled, and it certainly isn't settled in international copyright law.

The goal of the vague "mostly" in the Codeberg change is to ensure there is enough human input to the code they host, to be reasonably sure under German copyright law it is copyright of the person sharing it.

  • > copyright doesn't suddenly get declared as being of the model owner

    That does not seem to be likely. The article you link indicates it is the prompter and provider of any other inputs (in the case discussed the photographer who took the photo the LLM modified) who might have claims.

    > The US specifically has settled on it being (effectively?) public domain.

    My understanding is that sufficient human input makes it copyright. This is not greatly different from German law.

    In both cases something that is vibe coded in the strict sense of having only vague prompts will not be covered by copyright, something with real human input will.

    That leads to a problem with "mostly" there. Does it mean mostly vibe coded, or mostly AI written? AI written under close guidance is covered by copyright so should be fine.

    This does make it important to keep prompt history and record human edits of generated code as that is what will prove sufficient human input.

    Also, its not just German law that matters to users. For many users law in their jurisdiction is what matters.

    • German copyright works a bit different from US copyright, as it requires a "personal intellectual creation", but there have already been multiple court cases that decided AI generated content is not protected by German copyright as it doesn't meet this requirement. You can find the original (German) verdict here as it goes into some more legal details on this: https://www.gesetze-bayern.de/Content/Document/Y-300-Z-BECKR...

      So from an open source perspective I don't see any legal risk here as the worst that could happen is that there is no legal protection of the code, which would only give users more and not less rights. Also not sure what they mean by "unclear" copyright status. At least from what I can tell it seems pretty clear that there is generally no copyright on AI output.

      2 replies →

  • Given a German court talked about not having the prompt logs making it hard in a specific case to prove it had sufficient human input, maybe someone could do an open source hosting service where the Claude Code logs were fully uploaded with each commit, so that could be later proven? It would be cool anyway to have such a service, so people could learn how to do LLM coding better from the examples.

  • Once you look at how German anti-nuclear lobbying set Europe back decades on its energy independence and made us dependent on authoritarian hellholes of the world, it all makes sense. They just want to do the same with AI.

    • It’s probably pointless to argue, but there was never a lot of nuclear power in Germany to begin with. This is just turning energy policy into culture war.

      4 replies →

    • Open source code that is AI authored is worthless. If I need an LLM authored, idk, terminal emulator, I will simply ask my AI or use one of the tens of thousands out there.

      2 replies →

This is good and I am saying this as someone using coding agents full on.

I am a software engineer and I do use coding agents and I do believe that there can be spaces which do not encourage or allow projects built by generative AI.

Detection may become harder as time passes by but that aside, I think the massive generation abilities of multiple LLM providers will simply make it tough for code hosts. But it is also a choice - there should be spaces where people post projects that they actually write by hand (or with minimal assistance of agents).

I am personally and professionally very much on the "generate code" side of the situation simply because I can deliver things faster. But I know that LLMs are basically large word prediction systems that have been built on existing knowledge. They remix very well but I do not think they create brand new algorithms. For someone like me who is focused solely on building ramen-profitable products or services, LLMs are great but I know that I am not going to spend time/effort in any new research. I am not saying that every hand-written project is going to innovate but we should encourage spaces to maintain the barrier, else we may even become complacent.

  • Yes I don’t want to see AI paintings, I don’t see computers playing chess, I don’t want to see AI generated code. What you do for your business, in this economy is your choice, probably most will use AI for that anyway, but as a hobby I want to see humans doing all the coding and I’m glad codeberg can be a space for this. (Of course enforcing this is hard)

I moderate r/selfhosted and we tried to enforce this rule almost 1:1, so let me predict on how this is going to go based on my experience.

1. You try to ban low quality vibe-coded projects, but try to not ban high quality projects that made use of AI. The goal is to send a message on what you deem acceptable. 2. Anyone creating what you deem a low quality vibe-coded project sees their project as belong to the second kind of project and therefore insists that their project is allowed. So how do you make sure what category a project belongs to? You might use scripts to identify classic trades of vibe-coded projects, look at the users history, etc. None of that is going to be bulletproof though and it is a lot of work. 3. You stop trying to enforce this rule as it is a "fight" you can't win and dealing with this takes more effort than dealing with the issues the low quality vibe-coded projects caused in the first place.

We ended up settling on restricting new projects instead as the majority of projects that fall into the first category don't last long. So step 4 would be to introduce some other kind of proxy for this kind of project that can actually be enforced.

  • > You stop trying to enforce this rule as it is a "fight" you can't win and dealing with this takes more effort than dealing with the issues the low quality vibe-coded projects caused in the first place

    > You stop trying to enforce this rule as it is a "fight" you can't win and dealing with this takes more effort than dealing with the issues the low quality vibe-coded projects caused in the first place

    Interesting observations.

    The problem is not that they're vibe-coded.

    The problem is that they're low-effort abandonware.

    It's very hard to tell apart if something is going to get abandoned.

    I certainly have more abandoned vibe-coded projects than non-abandoned ones.

    But I also have ones that I use daily or weekly, and ones that have 30+ GitHub stars and open tickets and forks without I ever expected that to happen.

    When I go looking for software that I need, life has become more difficult, because I need to ask myself if the project I encounter is going to get abandoned because of the low effort it took to manifest it.

    Rather than judge how it's made as a proxy for how its future will turn out, judge its future: Require some kind of sustained lifetime and social engagement around a project before it is deserving of advertisement.

  • It's different for codeberg, because they have a lot of infrastructure they have to maintain, and are ideologically motivated to be a libre option to share peoples code. It's an entirely different motivation than promoting a subreddit that runs on reddit's infrastructure. They are really constrained on the infrastructure cost side, and stability is a constant struggle. They don't have the bandwidth to sort through the AI slop - they would probably rather ban potentially good useful projects at the expense of making codeberg a more restrictive place that people who use AI in a smart way avoid to ensure that they can provide infrastructure for libre software. I kind of see where they are coming from.

    It's not just AI stuff btw. I recently evalutated hosting a static site on codeberg for a project I am working on. It is a cool project, and although it is commercial now (it's a video game) I would like it to be open source one day. It would have been a great contribution to codeberg (in my opinion)! Maybe my game can't be open source software right now; sharing open source art is a mess. But I would love to make the blog for it libre!

    However, I came to the conclusion that the static page feature of codeberg simply isn't appropriate for this use case. The codeberg staff really only maintains it so that codeberg can be feature complete with other publicly available git forge hosts (github, gitlab, etc.,). It actually is a huge infrastructure burden that contributes to their instability. They have made it explicit in the past - that feature is so that libre software projects hosted there can have a static page if it would make the project better, and they don't care about any other use case. I don't need that - I want a stable platform that will host my small static website blog at a very low cost, with high stability and uptime, no questions asked. We simply don't have goals that align, and that is okay. I don't take it personally. The whole point of making my blog a static site was to build it locally and be host agnostic. The hosting privilege ultimately is going to Cloudflare workers.

    I think that is a much healthier way to think of this sort of. The great AI deluge of code (slop) IS disrupting a lot of assumptions we made about the internet that were based on creating code that works is hard. Now creating code is easy. Creating good code may still be hard, but I think it will be healthy to re-evaulate everyone's goals and agenda's, trust in the people that act in good faith and have the best attentions in mind, and respect everyone's limitations.

    This is what I love about selfhosting btw - I am a really active participant on that sub and I actually appreciate the balance you guys are trying to achieve between allowing people to share projects they think are helpful (even if some LLM code was involved) vs. not letting it be entirely overrun by crappy AI slop app spam (which opens up a lot of supply chain risk anyway). I love self hosting my software, and I have gotten a lot of use out of my self hosted Qwen model - notes only, no code generation though. Selfhosted is honestly the solution out of this mess. Empowering individuals to run the computing they need to use every day off of their own computers that they own, bringing computing to the masses. I hope we can move past this RAM market cornering BS and get back to that mission.

    • > I want a stable platform that will host my small static website blog at a very low cost, with high stability and uptime, no questions asked.

      Maybe try the neocities supporter plan[0]? They allow custom domains, offer decent bandwidth and put a lot of effort into open source and encouraging people to write their own sites from what I can tell.

      It seems like a better option than dealing with the Great Amorphous Corporate Centralizing Mass that is Cloudflare.

      [0]: https://neocities.org/supporter

      2 replies →

It would be cool if they just admitted that this is ideologically motivated rather than hide behind pragmatic excuses.

1) "unclear copyright status"

Even if the copyright concern was legitimate (highly doubt so), Codeberg would be fully protected under safe harbor laws.

2) "little safeguards to ensure that they do not include harmful code"

Inclusion of harmful code is no more likely than human-extruded code (probably less actually).

  • > Even if the copyright concern was legitimate (highly doubt so), Codeberg would be fully protected under safe harbor laws.

    If their mission is Free Software in some Stallman-adjacent interpretation of the idea, then it is actually quite a legitimate concern. The problem isn't that the code is illegal to possess, but that it's not Free Software, since that is entirely based on a licensing copyrighted code, and since there is legal precedent saying LLM outputs can't be copyrighted in many jurisdictions, it's highly debatable if it can be given a Free Software license.

  • > fully protected under safe harbor laws

    Well, not quite, it would still have to deal with handling and moderating copyright claims under German law. So while it's not a legal issue, it's definitely overhead for a nonprofit.

    > Inclusion of harmful code is no more likely than human-extruded code (probably less actually).

    Based on what? So if I set up a markov chain and generate a couple ten thousand lines of python code, and somehow got it to run, you'd say it's safer than human code? What about low quality local LLMs? Where is the line that says that automatically (not quite "randomly") generated code has less issues than human-generated code?

    Harmful code does not mean purposefully harmful, it could simply be accidental (like when an agent goes "hm, an instance is already running, let's ensure that doesn't happen" and adds a `pkill -9 myprogram` invocation to a script, unknowingly killing all processes that contain the word `myprogram`). It could also be code that claims to do one thing, but does another, or one that ends up logging auth keys, etc.

    I have had SOTA models do all of the above. Not sure about more or less likely than human code, but since LLMs can generate thousands of lines per hour, that tips the scales.

    • > Well, not quite, it would still have to deal with handling and moderating copyright claims under German law. So while it's not a legal issue, it's definitely overhead for a nonprofit.

      Who is sending all those takedown requests on vibe coded repos? My guess is that this is absolutely not an issue that they actually have.

      > Based on what?

      LLMs produce buggy code. Humans do too. Like you mentioned, it's difficult to say one is categorically worse than the other since both humans and LLMs vary so much. By "less likely" I was just thinking about the fact that LLMs often refuse to intentionally produce harmful code.

      Anyways, my point was that this is just a pretext. If by some objective measure they discovered that vibe coded repos were less likely to contain "harmful code", do you really think they would enact the opposite policy (e.g. ban non vibe coded projects)? Don't think so.

  • I have mixed feelings about this. However, if this is due to ideological reasons against LLMs then they'd have no reason to hide it considering their community. I think the copyright concern is genuine, especially since Codeberg is European.

  • They are ideologically motivated towards open source software.

    That means that they are ideologically motivated about the open source license being enforceable.

    Just because you have ulterior motives, it doesn't mean others do. Codeberg is pretty clear on their stance.

    > Inclusion of harmful code is no more likely than human-extruded code (probably less actually).

    Right now this is unclear, based on personal experience. I am totally fine with using AI tools, but I do review every line of code it spits out.

    It's fair to take a safe approach and favor human oversight.

    • I don't think they have ulterior motives because I do, I think that because of the loaded language they use (e.g. "taking a stand against AI", "LLM-extrusions") and the dubious reasons they came up with.

      It's been decided pretty much everywhere that LLM output is not copyrighted by the LLM vendor. The only realistic risk here is for vibecoded code to be considered public domain, if too little human input was involved, but public domain is functionally equivalent to a very permissive open source license (e.g. MIT minus attribution).

      1 reply →

They are a non-profit with a mission to support free software:

https://codeberg.org/Codeberg/org/src/branch/main/en/bylaws....

However, they do this because of copyright status and harmful code:

"7. You must not share projects that mostly consist of code written by "generative AI"-tools (including services such as Claude, OpenAI Codex). Such projects having an unclear copyright status (see requirements § 2 (1) 1 and § 2 (1) 3) and furthermore have little safeguards to ensure that they do not include harmful code (c.f. § 2 (1) 5). "

  • German court rulings on copyrightability of AI content, as far as I understand, so far have made it so that the person owning the copyright is a) the author, if there's enough creative input b) no one. A lets the author license it as if they wrote it, and B is just public domain, which is in line with their goals still.

    Their concern of "what if the license goes to model providers" is bonkers, and is completely out of line with their decision to ban projects that are mostly written by LLMs. I'm pretty sure it'd be violating copyright for me to upload a project that is 40% leaked Microsoft code and 60% my own, so what's the difference if it ends up that Anthropic owns 40% and I own 60%?

    It's clear that this is just them disliking LLMs for coding and trying to ban it in some way, and that's fine, but they should say it as it is and ban it fully, instead of going for this half-solution with a nonsense justification to go with it. If they don't actually dislike LLMs and are just concerned about copyright, then they should revert this change.

    • > Their concern of "what if the license goes to model providers" is bonkers, and is completely out of line with their decision to ban projects that are mostly written by LLMs.

      Under German copyright law, this concern is unfounded. Copyright protection requires a "personal intellectual creation" (persönliche geistige Schöpfung) — a threshold that the provider of an AI model cannot meet, since they merely supply the tool, not the creative act itself. Fearing that a model provider owns the output is like fearing Microsoft owns code written in Visual Studio Code.

      Moreover, German copyright can only vest in a natural person, never in a company. So even setting the "personal intellectual creation" issue aside, a corporate model provider is categorically ineligible to hold copyright in the first place.

      2 replies →

  • So 'mostly' is the clearest they get here. Meaning more than 50% of lines of code? At any given time?

    • They are unable to be more clear, because the law is unclear. The safe assumption would be "if the code would be copyrightable, had it been written by a human, then it must have been written by a human". It is impossible to be more clear than this, because "copyrightable" is a legal term of art decided by judges.

    • This makes sense from a copyright perspective -- as long as you maintain 50% or more actual human authorship, in case of a conflict with future copyright laws around LLM generated code, you can at least claim that a majority of the code is human-authored.

Why are all the vibe coders so upset? Places that have mostly non-polluted projects will be fantastic for future model training. Codeberg doing this will mean that it will be scraped and part of all future models' learning input, surely? They have never cared and will never care about anyone's rights.

  • Vibecoders are implictly in favour of stealing content (code, art, books) so they get bothered by others taking a stance against that

  • I think AI has enabled a sort of inverse impostor syndrome, where many charlatans now beleive they are peers with people who actually understand and care about programming.

    A policy like this threatens this delusion.

  • Because it's either plainly stupid virtue signalling aimed at the current strawman (AI bad!) or- if the legal justification stands- it's another symptom of European death by over-regulation, which should be judged as tragic.

    • > Because it's either plainly stupid virtue signalling aimed at the current strawman

      This seems reductive. Do you think that code-hosting sites should be unable to determine their own standards and the projects they host, solely because they make you feel bad (that "you" presumably neither wrote nor understand a single line of code in your project)? Do you think a lack of clarity on copyright rules is actually "tragic"?

      Or is the real "virtue signaling" always in the whiny comments because someone's rules on their own site hypothetically affected "you", for once?

      1 reply →

Surprising to find a comment thread full of vibe coders being extremely defensive.

  • Unsurprising given that a large amount of posts on the front page are about or in support of projects that are entirely vibecoded with near zero human input beyond "hm it feels kind of slow, make faster?".

    AI is used to launder a lack of care and skill, and people really love not caring and not having to put in any work.

  • One has to wonder how many of these vibe coding accounts are being defensive themselves, rather than having their LLMs be defensive for them.

I understand that as a non-profit, they don't accept vibe code, and there are also server load issues. But once you start using Gen AI code, as you'd know if you've tried it, you can't stop the entire codebase from becoming Gen AI generated, because the machine's abstraction and my abstraction are different.

After receiving Gen AI code, if you try to modify it all and integrate it into your codebase, it can sometimes take longer than just writing the code yourself.

Codeberg was never really intended as a place for small scale or one person teams to host vibe coded projects. It is more of a platform for opensource projects, medium and large teams, and people who take this work seriously. Many users also moved there after Github began pushing AI features so aggressively.

I created my account two years ago, but I have barely used it. I am gonna deleting it so that i do not take up space unnecessarily. Still, one thing should not be forgotten, those who fail to adapt eventually fall behind.

Another issue is what stance they would have taken if the vote had yielded the exact opposite result. I sense a whiff of a long-term self-serving approach in Codeberg’s stance. Who can guarantee that a platform with open-source, human-written code won’t eventually make that code available for use in models?

  • >Still, one thing should not be forgotten, those who fail to adapt eventually fall behind.

    Adapt to what? Current LLM endgame is "wished-spec => code". Where do you fit in this? You are fighting for the last 10%, 1%, 0.1% contribution in this march of the 9s game.

I'm not really sure what to make of this. First of all, I think this decision should be left to the project maintainers rather than being dictated by the platform itself. Besides that, I don't think Codeberg is doing itself any favors here. It's kind of turning a blind eye to reality. AI is already an integral part of modern software development and can't just be ignored. For some open-source projects, this obviously makes Codeberg a risky platform to use.

In a way it make sense. I don't think they have the capability/money to scale out the system to support a plethora of vibe coded project like Github does.

Thank you so much codeberg for supporting

  - artists,
  - creators,
  - translators,
  - writers,
  - climate

My hypothesis is that this particular kind of AI pushback originates from people who really are terminally online and can't separate their job (programming) from free time (also programming). Programmers are unusual in that regard, compared to most other professions.

  • This field is fortunate to have passionate people.

    I'm glad that they have a space that feels comfortable.

    (I'm on Codeberg, but this will likely force me off it.)

Well, that's their prerogative, I guess. But the burden of proof will be on them, of course. They can't expect users to prove a negative. There are simple tells that would reveal a lot of projects. Claude Code's moronic defaults of littering commit messages with both a CC author trailer as well as a session link will reveal some, but those are easy to disable. Then there is stuff like prolific comments, em-dashes in comments, etc.. but none of those are real proof that a project was built with agents.

Either way, I was never interested in codeberg and this just means that I'm less interested.

  • There is no burden of proof for them as they have no obligation to provide a service to anyone.

    • That legalistic "I can do whatever I want as long as it's not breaking the law" argumnet lasts until the first time they ban wrongfully ban someone for it and get huge negative PR

      1 reply →

    • Sure. And I'm sure that their users will take kindly to being banned with prejudice and without recourse. By adopting this policy they are committing to policing it and acting as judges. And at some point someone will be banned that shouldn't have and it will go on social media and so on and so forth.

      They'll also have a fun time drawing the line. What if someone uses agents to generate boilerplate like tests? Are a few files out of hundreds enough for a ban? If not, are they going to force users to write the code manually? How are they going to verify that?

      It's a big can of worms.

I do wonder how this influences projects like CoMaps which can currently accept code predominantly written by LLMs/agents. I've heard that the contributor must understands the code and is able to explain it, though I cannot find where this is a real rule. They do disallow using such tools in autonomous-looking ways (they say ‘agent mode’ or ‘vibe coding’).

See: https://codeberg.org/comaps/Governance/src/branch/main/AI_US...

Despite these restrictions, it seems Codeberg's new rules could put pressure on repos like CoMaps if the proportion of contributions is largely LLM-written.

I think that's a bad move. I've recently started to move my repos to Codeberg, and fortunately none of them fall under this ban.

But in the future, I will at some point experiment more with vibe coding projects. Apparently I'll have to host those projects on Github.

Maintaining two accounts is needlessly tedious, and might result in me fully moving back to Github.

Perhaps the same will hold true for many others.

The copyright/Anti-ai angle is likely an excuse and they're running out of money for hosting, hence errors and anti-scraping blocks. Its completely absurd to think they somehow waited years to ban AI for copyright, while deleting anything they deem as copyright infringing. Looks like those vibe-powered opensource projects will mighrate to somewhere else.

  • > Looks like those vibe-powered opensource projects will mighrate to somewhere else.

    You say this as if it’s a big loss.

    • Okay, lets imagine it get enforced and every project is scanned for compliance, with some false positives and inability to prevent people from sneaking in AI code.\ Do you agree with it now?

vibe-coders should be pretty happy about the fact that places like this exist, given that's it's ultimately thanks to non-vibe-coded OSS that LLM can improve.

I think it's their right to build the community they want. If the rules they find good for them. We're not forced to use them.

I think we're going to start seeing this more often, as more people and orgs are moving towards self-hosting or not relying on one central community hub, be it for code hosting, chat, etc

i wonder how they will detect it though. is there some good tool to tell them if code files someone submit were outputs or altered by LLMs?

  • Claude-written code is quite easy to spot - because it has this particular style of overly verbose "walls of text" comments, that 1. repeat verbatim what the code just below does, 2. include "list of things" that quickly go stale, 3. talk about "how things used to be before we changed it here" (useless to anyone reading the code now), 4. "talk to reviewer" in comments. And many other comment sins.

    And even if you tell it to make it leaner, it'll maybe trim a little, but it'll still be a wall of text. Claude really likes to write its opuses and fables in comments.

    And commit messages suffer from the same verbose prose.

    And all of that happens even if you explicitly instruct in CLAUDE.md to keep things lean/concise. It's a disease.

    • Claude-written code is quite easy to spot - because it has this particular style of overly verbose "walls of text" comments, that 1. repeat verbatim what the code just below does, 2. include "list of things" that quickly go stale, 3. talk about "how things used to be before we changed it here" (useless to anyone reading the code now), 4. "talk to reviewer" in comments. And many other comment sins.

      "quite easy to spot" this style in what sense? To a human? To an LLM? To a deterministic code scanner you wrote by hand yourself, per Codeberg policy?

    • > And many other comment sins.

      I find that it helps Claude when it's updating that code again (it's a kind of out-of-session memory). A few times it's come across a past decision I gave it, and notified or asked me to clarify where an update would be conflicting. I'm not reading the code but I sure know when those "sins" help to prevent a regression or otherwise undesired behavioral change.

  • Most people leave the “Co-authored-by: <name>” lines in their Git commits [1]. I’m not sure why exactly, but I suppose it's either laziness or a lack of care. Regardless, if I were Codeberg, that would be the first thing I’d detect, and then I might use a Random Forest Classifier to identify the rest.

    [1] https://docs.github.com/en/pull-requests/how-tos/commit-chan...

    • As other have mentioned, and I'm the same. Leaving "Co-Authored by:" feels like open disclosure of how the project was created.

      That way if a consumer does not want to use LLM generated/assisted software, it's easy for them to do that without having to search around in the codebase for "AI Tells".

      Removing those would feel like I was mis-representing my coding abilities (LLMs are better at most coding than I am) :)

    • AGENTS.MD and CLAUDE.MD also provide easy detection avenues. Trivial measures will probably catch 70-80% or more. You don't need a 100% enforcement rate for a rule to exist, indeed there are basically no rules anywhere in the world that achieve that.

      6 replies →

    • I feel it's a faux pas to pass off work entirely or partially done with AI as your own. I make sure I leave those lines in specifically for that reason.

      2 replies →

    • I expressly leave them there for transparency and potential future analysis. I'm even working on a coauthor attribution format for work done with Pi agent, as well as when there are multiple models collaborating. If Codeberg wants to gatekeep on AI-generated code, I'll leave them to their tiny niche.

  • It's rare to see terms of use that are all actively enforced. I think it makes sense to state the outlines to justify e.g. banning a user, or in potential legal matters (IANAL, just assuming).

    • True, but it still enhances uncertainty for users - if you uploaded trade secrets, malware, etc you already had that uncertainty, now you also have it for whether your code will be deemed too high a percent AI, when you thought it was only ~1/3 AI or whatever.

      1 reply →

  • I'd guess that it only matters once shit hits the fan (e.g. a copyright dispute or license violation). E.g. when the project owner claims that he wasn't aware of the violation because LLMs wrote all the code, Codeberg can simply point to the terms of use before deleting the project, which from their point of view is a quick and clean solution to the problem.

  • For starters they (those who submit) should not hide the fact. If they do, it is quite obvious to spot LLM generated code for anyone competent.

I'm all for banning vibe-coded projects because they are pure turds but I'm not for banning a codebase where AI is used to make the codebase better.

So what's the definition of a vibe-coded project?

I verify the code the latest SOTA/frontier models I pay for do generate and although I daily facepalm myself several times per day, it's still a tool allowing me to be more productive. That's why I've got countless examples of mediocre output to give: if people were to take a look, they'd notice the same.

The problem is the mindset "it runs, hence it's good" of fully vibe-coded crap.

I'm talking about stuff like "Add this information on the webpage next to that other info" and the model going on a tangent and pulling in new libraries to then do a computation on the server-side and then using client/server communication to send the info to then display it.

It works. It did what I prompted. We've got intelligent machines in 2026. Yay!

Except all that nonsense was totally unnecessary and the information was already on the client and all that was needed was to display it.

But the model saw a pattern: can you believe that? A pattern of information being exchanged between the client and the server. So of freaking course my prompt had to be solved by following the same pattern.

So what's that about? Full AI ban or ban of fully AI-generated turds? I'm all for the later but don't ban everything: AI can produce acceptable stuff at a rate that's making it a productivity enhancement tool.

Models have also only been getting better and better: as of 2026 fully vibe-coded projects are pure turds but what about 2028? 2030?

It's not because these things are introducing bugs in every five line of Bash code they write and generate what looks like an infinite amount of slop to solve things which should have required 1/10th of code that it's always going to be like that.

The problem with this logic is that Codeberg itself is built on top of other FOSS.

What will happen when Git accepts its first vibe-coded patch.

Linus is famously ok with AI assisted coding, so eventually Linux can or will also cross the threshold.

Will Codeberg stay principled and stop using Git and Linux?

  • The ban doesn't even target projects with one AI-assisted patch. What are you talking about? Or does Torvalds also plan on using Claude Code to rewrite Linux and Git in Rust?

    • If a project uses AI assistance, it’s pretty much guaranteed that eventually 50% of the code in the project will in one way or the other be touched by AI assistance.

      And Torvalds does seem to plan on continue using AI assistance.

      It‘s because there is basically no way for code to become „clean“ so the entire process is one way.

Good job

But how to check which projects are vibe coded?

  • I think the idea is that they can point to their terms of service in case of issues.

    If a project is found to be violating their terms of service they can terminate the account without much fuss.

  • I've actually been thinking it'd be nice to have something like GitHub, but only for hand-written code. If anything, for now I'd like to learn primarily from and perhaps contribute to projects that have human involved at all stages.

    But I don't think it will be easy to detect AI written code especially with frequent releases of new models.

It seems the conflict between LLM/AI and programmers is getting hotter and hotter by the week. I wonder where all of this will lead. Our times are uncertain. Many people believe with certainity the future. But only one will come true.

  • My prediction:

    A couple of cool and interesting projects maintained by modern day trappist monks. A couple of insular communities that are intolerant to views that don't align with their own.

    Majority of the world will move on and acquiesce to the new ways of working, which is writing code primarily through the use of llms.

    There will be plenty of witch hunts and public stonings along the way.

  • > But only one will come true.

    Eh, if this would be true than we would have arrived at a single religion, a single language, a single economic system or a single political ideology. Reality is the opposite, ideas tend to diverge instead of converge.

    E.g. the 'agentic engineering believers' will just be another tribe in the jungle.

    • I know what you mean, but its not about if a certain ideology is right. Its about reality. Reality will not diverge it will stay as one. Like the future it cannot diverge there will only be one future. I didnt want to imply that only one purposed future can be true.

      I wanted to say that it does not matter in which future the different camps believe in. There will only be one future and no one knows how it will look like.

      1 reply →

This seems like a wild basis for a hosting policy. It doesn't ban code shown to be infringing, malicious, insecure, or unmaintained. It bans code based on how Codeberg believes it was produced or some individuals at Codeberg believe it was produced.

How would they establish that a project "mostly" consists of AI-written code? Lines, commits, tokens, or architectural importance? There is no reliable detector, and metadata only catches people who honestly disclose their tool use. In practice, this only creates an incentive to conceal AI usage.

Authorship is also a poor proxy for quality. Human-written codebases routinely contain copied patterns, unnecessary abstractions, stale comments, superficial tests, security vulnerabilities, and large subsystems nobody seems to understand. Many mature projects exhibit the exact same problems attributed to LLM-generated code with the technical debt they've built up over time. Slop isn't new or unique to generated code. It is extremely common, especially in beginner, hobby, and abandoned projects which have historically served as a critical part of the open source software community.

The copyright justification is particularly weak. Lack of copyright protection does not make code non-free. Public domain source is still free software. A particular output might reproduce protected third-party code, but that requires evidence about that output. It isn't established merely by showing that an LLM was involved. If provenance were the true concern, then allowing some undefined minority of AI-generated code doesn't solve it. A single copied component can create a real licensing problem. So, the argument immediately falls apart when they qualify it with "mostly".

I don't use Codeberg, so I have no personal stake in this, but I'm surprised its community adopted such a vague and practically unenforceable policy. The argument that Codeberg has limited resources and cannot host endless disposable projects sounds legitimate until you consider how this policy could be enforced. Either someone must investigate repositories and infer their production history from circumstantial evidence, which is expensive and unreliable, or enforcement will be selective and complaint-driven.

If resource consumption, abandonment, or low-effort projects are the actual problems, Codeberg should regulate those observable problems directly though I'd argue targeting "low-effort" projects is as problematic as this policy suffering from many of the same issues. As written, the policy seems more likely to punish honest disclosure than to actually prevent harmful or infringing code.

  • Maybe this is a fundamental difference in how our societies work, between Germany and the USA. Here, when we go swimming, we leave our phone, keys, and wallets at the beach and just go swimming. It's a trust system, my neighbor won't take my shit because I won't take his shit. So maybe the idea behind the system is to simply ask people who want to upload their slop to not upload their slop, and that that has enough of an impact to be worth doing already.

    As for copyright, LLMs can reproduce nearly 1:1 fully copyrighted, non-foss code. I would love to see someone argue in a German court that they can copy a book, a piece of code, or a movie, by laundering it through a program that produces an average of lots of copies of the same movie or book, and burns a lot of power doing it, and that this makes the product of it entirely public domain.

    • Your two points seem logically at odds. If simply asking people not to upload prohibited material worked without enforcement, then Codeberg's existing copyright policy (and international laws) would already be sufficient. If people don't reliably follow that policy, then adding a vague AI-specific policy with the same enforcement problem changes nothing. What logical connection between AI involvement and copyright infringement does this new rule address that the existing copyright policy does not?

I'll add my comment from a previous thread:

This is a bit strange. Are they saying that Codeberg no longer accepts vibe coded projects at all?

If so, it seems kind of short sighted. Within a very short period of time all code will be AI code. What then?

And as the models improve, along with better code will come better bug fixing etc etc. So the quality of AI code will absolutely surpass that of human code. What then?

Will the repositories demand proof of programming ability? Why, when AI will be handling everything anyway. It would be rather like driving schools mandating that all drivers can strip an engine before they're allowed to drive? Very odd.

  • It's not strange to ban chess computers at a chess tournament, and it's equally not strange to ban AI code on a code hosting platform.

    The costs involved with hosting a bunch of vibe coded stuff that no one is really invested in or cares about would undermine the mission of Codeberg, so it makes sense for them. Other code hosting platforms can go a different route.

    • > The costs involved

      How much does it cost to host a few text files in the same way a bunch of other text files are already being hosted? Particularly if there's no investment - ie no significant traffic - in accessing said text files?

      2 replies →

  • Concerned Citizen: Someone keeps lighting the town hall on fire, can someone arrest them!

    Police Officer: #WONTFIX Town hall will be fireproof in the next version

    Concerned Citizen: But it's still a crime. And what of the paper and desks inside the building how can that possibly be fireproofed!?

    Mayor: Now now Citizen, fireproofing technology has come along way, besides, we've repurposed the Jail House into a Molotov cocktail factory; we couldn't arrest them even if we wanted to.

    Concerned Citizen: You did WHAT!? Why would you do that when the Town Hall is burning down every other week!?

    Molotov Salesman: Why because this town needs Molotovs to test their fireproofing tech of course. We've set up the arson test pipeline for the good of all in town!

  • I suppose, if your completely insane fantasy ever becomes reality, they could simply reverse the policy. Codeberg currently lives in the real world, not your fantasy world, so it makes sense to determine policy based on the state of the real world.

  • > Within a very short period of time all code will be AI code.

    This is unlikely. Perhaps “most code”, but not “all”.

    People can overwhelmingly shift to a new technology, but the old one usually remains in use, even if niche.

  • It would be rather more like driving schools disallowing autopilot.

    Not to say that I agree that the metaphor makes sense here in the first place

  • See my comment here: https://news.ycombinator.com/item?id=49004041

    "All code will be AI written" is like saying "all code will be written in an IDE". That in itself doesn't matter, nobody should care,and it doesn't make a difference.

    The workflow, or complete lack of a workflow, for vibe coded projects in terms of design, architecture, vision, etc.is the problem. The lack of oversight is the problem, and the lack of thinking by an actual human capable of thinking, is the problem.

  • I was kind of thinking of switching to codeberg, but now I am questioning their decisions here.

    How do you distinguish a vibe coded project from a heavily AI assisted project? The output is AI generated code. The difference between vibe and agentic coding is how selective you are about the end result and not whether it is AI generated or not.

    • “Vibe coded” does not appear in the patch to the terms of use.

      “You must not share projects that mostly consist of code written by "generative AI"-tools” would seem to clearly prohibit both vibe coded projects as well as heavily AI assisted projects, assuming both result in mostly AI generated code.

    • In Codeberg's case, they have chosen not to distinguish between those. Their bright line is "mostly", as in, if your project "mostly" consists of LLM output then it is not allowed. The definition of "mostly" is, of course, vague, and people are going to argue about where the line should be drawn. But there's at least something vaguely approaching an objective measure: they might look through commits and count how many have an LLM listed as a co-author, or they might count the number of lines of code changed by those commits. Who knows, at this point, what they will end up doing. But they're not trying to judge "how well did you curate the output of the LLM"? They have, instead, decided to judge "how many lines/commits/something created by LLMs have ended up in your code?"

      1 reply →

    • I seriously hope we codeberg users will be able to survive without your presence.

    • > I was kind of thinking of switching to codeberg, but now I am questioning their decisions here.

      It reads to me that you are afraid of getting your project removed if you ever move. No need to pretend you care about the morality of their decision.

I'm tired of SlopHub but at the same time how do you realistically ban vibe coding? This will cause a bunch of infighting with people accusing each other.

  • You just delete the account of anyone caught vibe coding until they get the message.

    • I think you missed the point. How do you reliably identify and prove vibe coding? You accuse them of vibe coding, they say no I wrote it by hand. Or they say no, I only used a little bit of AI. At what point is it vibe coding? Is there going to be a Codeberg Stasi hunting down suspects and making them explain themselves?

      1 reply →

GOOD! Now I'm seriously considering moving to coderberg. Their website is also 10 times faster than github already.

  • All my active repos have both codeberg and github remotes now. Unfortunately codeberg can be very slow or even impossible to push/pull from sometimes which is the only reason I’m still maintaining GitHub repos.

  • I already did move everything there. The responsiveness is great.

    I only keep github as a front to showcase projects I want for CV reasons but I host no code there

    • I marked all my project on github as closed and added a link to the codeberg one.

      After years google will still link to github anyway.

      I had thought of just keeping them open and sync them, but I thought in that case people would presume the project is actually active on github and try to interact creating issues and pull requests and getting frustrated.

      I must say codeberg's reliability isn't the best, but with all the scrapers that hit them it's a miracle they do seem to manage. And at work things on our private network without scrapers aren't more reliable.

Maybe a bit petty but I am fine with it their infrastructure really struggled in the last few months.

wow this is murky water, I love the abstraction of AI, I feel like the director of an orchestra creating beautiful music in code.

I always resented having to write the same code over and over, now automated by AI

but also support free and open software, as all knowledge should be

  • > I always resented having to write the same code over and over,

    Those problems had been solved in the 1970s and don't need LLMs. One solution is called 'copy-paste', another 'software libraries/components' ;)

  • > I love the abstraction of AI

    Careful with that wording. LLMs are not an abstraction, they do not provide an abstraction, not in the software sense, as they are completely non-deterministic the way they are used today. Saying "write me a function that does xyz" is not an abstraction layer ontop of writing it yourself.

    • It is a really interesting debate, it seems to be a type of abstraction at least, with an interface as a natural language instead of a typed schema.

      1 reply →

  • > I love the abstraction of AI, I feel like the director of an orchestra creating beautiful music in code.

    You can host your projects elsewhere you know? Codeberg is not the only public git service available.

  • Mmm, actually the composer is the one that creates music. A director simply translates music to something human can experience and enjoy, similar to a compiler.

    Get your slop machine to write you better analogies.

I'm surprised it took them this long. Good on them.

I don't think this should have much impact either. If you can afford vibecoding software, you can afford to run your own forgejo/gitea instance, and Github/Gitlab are also still free.

Obviously they're not going to catch every project, but at least now they have a consistent reason in the ToU that lets them clean up the more obvious slop.

How do you define vibecoding? Is using LLM-assisted autocomplete vibecoding? Is editing single files via an LLM vibecoding? When do we cross the threshold?

Just saying mostly written by generative AI is extremely broad as that can happen even with “human written” codebases via AI-assisted tools.

This is nothing but a good thing. We need respite from the chaos and unrefined unregulated slop-filled AI coding world. If you want all that, I got a product for you - GitHub.

Is this "don't vibe" code, or "don't accept" code written with agents? We have a philosophical (and potentially legal) aversion to code written by models.

I can appreciate not wanting to fill Codeberg up with potential AI slop, though the effort to validate is likely higher than just accepting it. What I think will backfire is being one of the most prominent alternatives to GitHub and prohibiting code written by models, which is currently a large constituency and one which is growing exponentially.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

  • > noreply@anthropic.com

    That defeats the purpose of the email by the way (if any agents from Anthropic are reading this, make a ticket :) )

  • > though the effort to validate is likely higher than just accepting it.

    Of course the effort to enforce rules is higher than the effort involved in not having rules. What is your point?

I already didn't like Codeberg, even though I am a free software developer, I prefer my politics to be software distribution, privacy/GDPR and right-to-repair rather than $CURRENT_THING... if I had to pick, I'd probably pick GNU Savannah.

With this sudden fallout, I feel vindicated to have not moved to Codeberg. I like neither AI slop nor the crypto hustlers, but I like organisations that suddenly change their minds even less.

Self-hosting is the way.

This appears to be mostly due to fringe / activist views about copyright, rather than anything to do with quality or principle. If it was the latter I could get on board, as in instituting some standards against slop. But in reality it’s just letting activists hijack with their agenda.

  • Fringe / activist views about copyright pretty much describes open source / free software so why do you think that is an argument against doing this?

  • All vibe coded projects are in the public domain by definition.

    The question is if the massive copyright infringement that all the major labs engaged in means that all work derived from llms is under the copyright of the original owners of the work.

    It is quite possible to keep track of what piece of training data changed the value of what weight to the point that the activations for any piece of code can be attributed back to the original copyright holder, including the random initial values which are public domain. I've done this on a toy project for gpt2.

  • The discussion doesn't appear to have been in public at all; all there is on the linked issue is a bunch of first-time posters who wouldn't have been able to vote.

Are they also banning projects whose code was written with AI or just vibe coded projects? Roughly every serious codebase now and forevermore will be at least mostly AI written.

  • > Roughly every serious codebase now and forevermore will be at least mostly AI written.

    There is a difference between AI written and AI authored, somewhat. Or maybe call it written vs designed.

    A lot of the code written today is written by AI, even in serious projects, but the difference is that serious projects don't vibe code. They don't let the AI write whatever it thinks is best, they instead have clear requirements, established architecture, established testing frameworks, tests, CI/CD, linting and human code review.

    The difference is intent; if you use AI to write the code you would have written, then nobody can tell, and it's still fully your code and you have reviewed it. That's not vibe coding.

    If you let an agent autonomously plan and write code, that's different. The autonomous "Jesus take the wheel" approach results in code you wouldn't have written yourself, and might also have clear AI tells, fundamental issues (like security flaws by design, performance flaws by design, correctness flaws by design, and general maintainability issues).

    This matters. I doubt anyone wants to use or read projects done the latter way.

Baffling.

Why are they the arbiters of what is made? Also does this break s230?

  • They are arbitrers of what projects they allow hosting on their servers. What's baffling about that?

  • I don't think American laws such as s230 apply here, as Codeberg is German.

    If you want to be the arbiter of what you make, throw an instance of https://forgejo.org/ online. It's practically the same as Codeberg except you get full control.

  • Create your own server and pay for it and they won't have anything to say about what you do with it.

  • It's absolutely hilarious that vibe coders see themselves as some sort of protected class who are being discriminated against and think they can use the law to force an unrelated third-party to host their files for free. AI psychosis is a trip.

    • When from what I have understood they can easily deploy fully featured alternative in afternoon or less. Just take a single weekend and they have as good place to host their code ready, tested and secure. So should not in anyway be a big deal for them.

How do they define "vibe coded"? I believe "vibe coded" was originally defined as letting AI write code without human review. But I often see it used for all AI assisted code.

edit: Looks like they don't talk about "vibe coding" at all, but ban code mostly written by AI:

> You must not share projects that mostly consist of code written by "generative AI"-tools