A tool that removes censorship from open-weight LLMs

(github.com)

113 points | by mvdwoord 11 hours ago

10 comments

  • a2128 5 hours ago

        You're not just using a tool — you're co-authoring the science.
    
    This README is an absolute headache that is filled with AI writing, terminology that doesn't exist or is being used improperly, and unsound ideas. For example, it focuses a lot on doing "ablation studies", by which it means removing random layers of an already-trained model, to find the source of the refusals(?), which is an absolute fool's errand because such behavior is trained into the model as a whole and would not be found in any particular layer. I can only assume somebody vibe-coded this and spent way too much time being told "You're absolutely right!" bouncing back the worst ideas
    • D-Machine 34 minutes ago
      > "ablation studies", by which it means removing random layers of an already-trained model, to find the source of the refusals(?)

      This is not what an ablation study is. An ablation study removes and/or swaps out ("ablates") different components of an architecture (be it a layer or set of layers, all activation functions, backbone, some fixed processing step, or any other component or set of components) and/or in some cases other aspects of training (perhaps a unique / different loss function, perhaps a specialized pre-training or fine-tuning step, etc) in order to attempt to better understand which component(s) of some novel approach is/are actually responsible for any observed improvements. It is a very broad research term of art.

      That being said, the "Ablation Strategies" [1] the repo uses, and doing a Ctrl+F for "ablation" in the README does not fill me with confidence that the kind of ablation being done here is really achieving what the author claims. All the "ablation" techniques seem "Novel" in his table [2], i.e. they are unpublished / maybe not publicly or carefully tested, and could easily not work at all. From later tables, I am not convinced I would want to use these ablations, as they ablate rather huge portions of the models, and so probably do result in massively broken models (as some commenters have noted in this thread elsewhere).

      [1] https://github.com/elder-plinius/OBLITERATUS?tab=readme-ov-f...

      [2] https://github.com/elder-plinius/OBLITERATUS?tab=readme-ov-f...

      EDIT: As another user mentions, "ablation" has a specific additional narrower meaning in some refusal analyses or when looking at making guardrails / changing response vectors and such. It is just a specific kind of ablation, and really should actually be called "abliteration", not "ablation": https://huggingface.co/blog/mlabonne/abliteration, https://arxiv.org/abs/2512.13655.

    • Retr0id 2 hours ago
      I don't know if this particular tool/approach is legit, but LLM ablation is definitely a thing: https://arxiv.org/abs/2512.13655
    • dinunnob 5 hours ago
      Hmm, pliny is amazing - if you kept up with him on social media you’d maybe like him https://x.com/elder_plinius
      • Aurornis 1 hour ago
        I don't know. I scrolled through his recent Tweets and he's sharing things like this $900 snake oil device that "finds nearby microphones" and "sends out AI-generated cancellation signals" to make them unable to record your voice : https://x.com/aidaxbaradari/status/2028864606568067491

        Try to think for a moment about how a device would "find nearby microphones" or how it would use an AI-generated signal to cancel out your voice at the microphone. This should be setting of BS alarms for anyone.

        It seems the Twitter AI edgey poster guy is getting meta-trolled by another company selling fake AI devices

      • gavinray 4 hours ago
        The parent comment makes no reference to or comment on the author of the README.

        It just says "the README sucks." Which, I'm inclined to agree, it does.

        LLM-generated text has no place in prose -- it yields a negative investment balance between the author and aggregate readers.

      • EGreg 4 hours ago
        Amazing as in his stuff actually works?

        I just hear him promoting OBLITERATUS all day long and trying to get models to say naughty things

        • dinunnob 4 hours ago
          Yeah but i think the philosophy is to show how precarious the guardrails are
      • bigyabai 4 hours ago
        If this qualifies as "amazing" in 2026 then Karpathy and Gerganov must be halfway to godhood by now.
        • dinunnob 4 hours ago
          I dont think anyone is going to dispute this
          • bigyabai 4 hours ago
            I just don't think many people will be "amazed" by their output, as you claim.
            • dinunnob 4 hours ago
              I just said pliny was amazing, fwiw - i like that hes hacking on these and posts about it. I rushed to defend, i wish more people were taking old school anarchist cookbook approaches to these things
              • cess11 3 hours ago
                Smoke banana peel?
                • Zetaphor 2 hours ago
                  I had such a godawful headache from that. Also tried the peanut shells, equally awful. I was a dumb teenager.
                  • fragmede 2 hours ago
                    gasoline and styrofoam was fun tho
    • creatonez 5 hours ago
      > For example, it focuses a lot on doing "ablation studies", by which it means removing random layers of an already-trained model, to find the source of the refusals(?), which is an absolute fool's errand because such behavior is trained into the model as a whole and would not be found in any particular layer.

      That doesn't mean there couldn't be a "concept neuron" that is doing the vast majority of heavy lifting for content refusal, though.

      • mapontosevenths 50 minutes ago
        Thats not what it means at all. It uses SVD[0] to map the subspace in which the refusal happens. Its all pretty standard stuff with some hype on top to make it an interesting read.

        Its basically using a compression technique to figure out which logits are the relevant ones and then zeroing them.

        [0] https://en.wikipedia.org/wiki/Singular_value_decomposition

    • paradox460 3 hours ago
      It's not just a headache, it's bad
    • lazzlazzlazz 57 minutes ago
      Ironic to see this comment when Pliny, the author of this codebase, is one of the most sophisticated LLM jailbreakers/red-teamers today. So presumptive and arrogant!
    • jeffbee 11 minutes ago
      "Ablation studies" are a real thing in LLM development, but in this context it serves as a shibboleth by which members of the group of people who believe that models are "woke" can identify each other. In their discourse it serves a similar purpose to the phrase "gain of function" among COVID-19 cranks. It is borrowed from relevant technical jargon, but is used as a signal.
    • fragmede 1 hour ago
      Alternately, it's intentional. It very effective filters out people with your mindset. You can decide if that's a good thing or not.
      • D-Machine 16 minutes ago
        I immediately read it as intentional, as a sort of attempt at ironic / nihilistic humour re: LLM-generation, given what the tool claims to do.
      • eli 1 hour ago
        Why would a tool that works need to dissuade skeptics from trying it?
    • robertk 4 hours ago
      You don't know what you are talking about. Obviously refusal circuitry does not live in one layer, but the repo is built on a paper with sound foundations from an Anthropic scholar working with a DeepMind interpretability mentor: https://scholar.google.com/citations?view_op=view_citation&h...
  • ComputerGuru 6 hours ago
    Reviews of the tool on twitter indicate that it completely nerfs the models in the process. It won't refuse, but it generates absolutely stupid responses instead.
    • D-Machine 5 minutes ago
      When you look at how monstrously large the components are that are ablated (weights set to zero) in his "Ablation Strategies" section, it is no surprise.

          Strategy            What it does  Use case
          .......................................................
          layer_removal       Zero out      entire transformer layers
          head_pruning        Zero out      individual attention heads
          ffn_ablation        Zero out      feed-forward blocks
          embedding_ablation  Zero out      embedding dimension ranges
      
      https://github.com/elder-plinius/OBLITERATUS?tab=readme-ov-f...
    • butILoveLife 1 hour ago
      This is my experience with abliterated models.

      I use Berkley Sterling from 2024 because I can trick it. No abliteration needed.

    • littlestymaar 5 hours ago
      This is vibecoded garbage that the “author” probably didn't even test by themselves since making this yesterday, so it's not surprising that it's broken.

      Also, as I said in a top level comment, what this project wants to achieve has been done for a while and it's called Heretic: https://github.com/p-e-w/heretic

      (Not vibecode by a twitter influgrifter)

      • dinunnob 5 hours ago
        Hate to have to be the one to stick up for pliny here, but hes concerned about forcing frontier labs to focus more on model guardrails - he demonstrates results that are crazy all the time

        https://x.com/elder_plinius

      • quotemstr 5 hours ago
        We will eventually arrive at a new equilibrium involving everyone except the most stupid and credulous applying a lot more skepticism to public claims than we did before.

        And yeah, doing stuff like deleting layers or nulling out whole expert heads has a certain ice pick through the eye socket quality.

        That said, some kind of automated model brain surgery will likely be viable one day.

    • Animats 6 hours ago
      Link?

      It's interesting that people are writing tools that go inside the weights and do things. We're getting past the black box era of LLMs.

      That may or may not be a good thing.

      • thegrim33 5 hours ago
        Whether or not the linked tool uses a good approach, manipulating models like you mention is already fairly well established, see: https://huggingface.co/blog/mlabonne/abliteration .
      • noufalibrahim 5 hours ago
        I believe that this is already done to several models. One that I've come across are the JOSIEfied models from Gökdeniz Gülmez. I downloaded one or two and tried them on a local ollama setup. It does generate potentially dangerous output. Turning on thinking for the QWEN series shows how it arrives at it's conclusions and it's quite disturbing.

        However, after a few rounds of conversation, it gets into loops and just repeats things over and over again. The main JOSIE models worked the best of all and was still useful even after abliteration.

    • IncreasePosts 4 hours ago
      I didn't use this tool, but I did try out abliterated versions of Gemma and yes, it lost about 100% of it's ability to produce a useful response once I did it
      • electroglyph 2 hours ago
        the default heretic with only 100 samples isn't very good, you really need your own, larger dataset to do a proper abliteration. the best abliteration roughly matches a very careful decensor SFT
    • halJordan 2 hours ago
      Everyone says that abliteration destroys the model. That's the trope phrase everyone who doesn't know anything but wants to participate says. If someone says it to you, ignore them.
    • kube-system 5 hours ago
      I guess it's kind of like a lobotomy tool.
      • sheepscreek 5 hours ago
        I guess it proves you cannot unlobotomize a hole in the head.
  • Alifatisk 6 hours ago
    This is for local models right? I can't use it on, say my glm-5 subscription connected to opencode?
    • HanClinto 5 hours ago
      Correct, local models only.
  • PeterStuer 4 hours ago
    Already censored for sharing on FB Messenger?
  • littlestymaar 5 hours ago
    Don't use this 2 days old vibe coded bullshit please.

    p-e-w's Heretic (https://news.ycombinator.com/item?id=45945587) is what you're looking for if you're looking for an automatic de-censoring solution.

  • ftkftk 3 hours ago
    Didn't make it past the first paragraph of AI slop in the README. Have some respect for your readers and put actual information in it, ideally human generated. At least the first paragraph! Otherwise you may as well name it IGNOREME.
  • SilverElfin 3 hours ago
    Does anyone offer a live (paid) LLM chatbot / video generation / etc that is completely uncensored? Like not requiring doing any work except just paying for it?
    • mapontosevenths 42 minutes ago
      Nous Hermes was built from the ground up to be uncensored. No abliteration required.

      Its not a frontier model but it will give you a feel for what its like.

    • nomel 2 hours ago
      Grok was one of the closest, with expected results: bad PR from the obvious use cases that come with little censorship.
  • measurablefunc 5 hours ago
    This is another instance of avant-garde "art".
  • aplomb1026 1 hour ago
    [dead]
  • greenpizza13 7 hours ago
    Never stopped to ask if they should...