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Anthropic apologizes for invisible Claude Fable guardrails

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Re: Anthropic apologizes for invisible Claude Fable guardrails

#231

Earlier quoted context omitted.

"Arms race" is the term used colloquially to describe the dynamic that emerges in "winner-take-all" markets. It seems that the frontier labs believe they're participants in a winner-take-all market. Therefore they're in "an arms race." Winner-take-all markets do not require that the winner literally destroys the losers, but only that the winner enjoys disproportionate returns compared to their actual superiority. Whe…

Creative destruction is absolutely a thing in the market, but the way things are going it seems more likely that open source models will just destroy everything else as far as most users are concerned. The big proprietary labs will be effectively left with Fable, GPT-Pro and Gemini Deep Research - stuff that by all indications needs very large scale compute to even feasibly run. We'll probably find out that each has…

Sure, but:

> Whether or not this is actually true is TBD, but I think you're naive to think the frontier labs do not believe this to be true.

Re: Anthropic apologizes for invisible Claude Fable guardrails

#232

Earlier quoted context omitted.

It sounds like you might not agree with that belief. While I don't agree with their actions here, I do think there's sufficient reason to hold that belief. On some fronts (e.g. security, on which you've experienced more than me), I think there are surmountable challenges. But on other fronts (e.g. bio), a single errant actor could reasonably kill millions or billions of people with sufficiently powerful AI. We don't…

The model release cards for Opus have repeatedly and consistently stressed that the model doesn't have the fiddly know-how that's required to provide meaningful assistance in possibly dangerous subfields of biology. Mythos (Fable without the overly strict guardrails) has shown improvements in things like drug design, but even then the situation isn't really that different. This risk is ridiculously overblown, and the…

No, Anthropic's model cards have claimed that the models don't show considerably more uplift than previous ASL-3 models, which already showed material uplift.

I participated in the internal bioweapons uplift test for Sonnet 3.7, and even then, one non-expert got huge uplift from the model [1]. I'd consider evals a lower bound of capabilities that can be elicited from a model.

The team behind Biomni, a biomedical agent that's widely used by researchers, has continued to find consistent gains between models [2]. I trust them, because I visited them to build their HPC tool [3], which the model is quite capable of using – moreso than most grad students. The Biomni team cares a lot about about real usability for real researchers, so they have a great pulse on capabilties.

SecureBio also has some public evals [4], which have continued to show increasing uplift.

And while synthesis monitoring is a part of the solution, I think you might underestimate how much goes under the radar. See the Reedley lab incident for an example [5].

Is Anthropic still effectively throttling beneficial biomedical research? Yes! And so is OpenAI. But the underlying capability is still actually dual use.

[1]: See page 25 in https://www-cdn.anthropic.com/9ff93dfa8f445c932415d335c88852...

[2]: Their benchmark has a preprint at https://www.biorxiv.org/content/10.64898/2026.05.12.724604v1...

[3]: https://x.com/phylo_bio/article/2029233694775624096

[4]: https://securebio.org/

[5]: Search for "ebola" in the public report for the Reedley lab incident at https://chinaselectcommittee.house.gov/sites/evo-subsites/se...

Re: Anthropic apologizes for invisible Claude Fable guardrails

#234

Earlier quoted context omitted.

[flagged]

Safety from what? Competitors? That sounds like a product decision. They're puking on any requests that could be used to create LLMs or competitive products.

To prevent their models from doing harm in dual-use contexts including CBRN or by accelerating research in authoritarian-backed AI labs.

Re: Anthropic apologizes for invisible Claude Fable guardrails

#236

I'll defend Anthropic. They are clear about the reasons for guardrails: prevent their models from doing harm in dual-use contexts including CBRN or by accelerating research in authoritarian-backed AI labs. What is the critique against that? It seems pretty reasonable to me. You want AI-accelerated biological or radiological experiments running in your neighbors backyard? You want PRC-backed labs to continue to steal…

The original reporting of this from Anthropic didn't mention "authoritarian-backed AI labs" at all, only frontier ML research while leaving it entirely unspecified and unverifiable what was meant by "frontier". It's obviously reasonable that people would complain about that. And the notion that distillation-at-a-distance could be used to comprehensively "steal" a model, especially a frontier reasoning model that's likely relying on massive amounts of test-time compute, is completely unproven and quite ludicrous if you know anything at all about ML.

Re: Anthropic apologizes for invisible Claude Fable guardrails

#237

Earlier quoted context omitted.

Don't forget their push for full regulatory capture in the name of "safety" as well so they can pull the ladder up behind them before anyone else has an equally capable model and releases it without the anti-competitive safeguards, while also pushing to completely ban open weight models, or any model trained on a certain level of compute without "rigorous" government testing and validation (which I'm sure, they'll co…

They are the only ones I’ve contacted my bank to get a charge back on…

i wonder if some lawyer may see a consumer protection class action here. In my view the Stuxnet that Anthropic pulled over its customers isn't much different from say those unauthorized extra accounts by Wells Fargo.

Re: Anthropic apologizes for invisible Claude Fable guardrails

#238
someone posted this on /r/MachineLearning and I had the same experience and conclusion:

    I was having problems with Claude doing the same thing, even before Fable.

    The problems I had only happened in relation to AI research. It's not even only when training models, anything to do with analysis of local models or setting up test platforms for local models, and Claude would keep doing wrong things, would sabotage testing, would falsify reports, and would consistently suggest simply accepting trash results without looking into it and moving on to something else.
    Almost every response included a prompt to move on.

    So, I don't believe them when they say they won't silently sabotage, they already were doing it before they admitted it, and now they have admitted that they have the means, motivation, and intent.

Re: Anthropic apologizes for invisible Claude Fable guardrails

#239

I'll defend Anthropic. They are clear about the reasons for guardrails: prevent their models from doing harm in dual-use contexts including CBRN or by accelerating research in authoritarian-backed AI labs. What is the critique against that? It seems pretty reasonable to me. You want AI-accelerated biological or radiological experiments running in your neighbors backyard? You want PRC-backed labs to continue to steal…

The original reporting of this from Anthropic didn't mention "authoritarian-backed AI labs" at all, only frontier ML research while leaving it entirely unspecified and unverifiable what was meant by "frontier". It's obviously reasonable that people would complain about that. And the notion that distillation-at-a-distance could be used to comprehensively "steal" a model, especially a frontier reasoning model that's li…

"Anthropic accused Chinese firms of 'industrial-scale distillation attacks' on its AI models."

"Distillation involves training less capable models on more advanced ones’ output, and can be used illicitly to acquire powerful capabilities cheaply. The AI startup accused China’s DeepSeek, MiniMax, and Moonshot of generating 'over 16 million exchanges with Claude through approximately 24,000 fraudulent accounts,'"

https://www.semafor.com/article/02/24/2026/anthropic-accuses...

After reading their posts and watching interviews with Dario it's abundantly clear that they view Chinese-lab distillation of US frontier models as a threat to US national security. You can argue with them about whether that is true, but not whether distillation is real.

Re: Anthropic apologizes for invisible Claude Fable guardrails

#240
post #194

Earlier quoted context omitted.

It's important to separate objections to utilitarianism from the obvious fact that it can very be hard to correctly apply the utilitarian calculus. It's partly because of this difficulty that most classical utilitarians thought that people should generally follow commonsense morality and not try to directly apply the utilitarian calculus (which then led to the charge of paternalism and teaching one morality to the ma…

The first half of your answer presupposes some platonic utilitarian calculus that, if it were applied correctly, would yield moral outcomes. This is very hard to believe. If I look at notable/well-known examples of EA-affiliated people, it is hard to skip by members such as SBF. Did he correctly apply the utilitarian calculus? It is relatively easy to take the proceeds of a massive fraud, buy a relatively small (as a…

Yeah, I didn't mean to downplay how hard it is to apply the utilitarian calculus or even to suppose that the bare doctrine of utilitarianism resolves questions about what the ultimate good we should be trying to maximize is. I basically agree that utilitarianism is not a complete recipe for how to live. I just think that it probably gives the correct answer in cases where we can see clearly how to apply it because I'm skeptical of theories like Anscombe's. Which is to say that utilitarianism is a big tent.

Now if we look at EA, the basic tenet of EA seems obvious -- basically just utilitarianism. And from what I've seen, in practice also, EA is a pretty big tent. I don't know the specifics of SBF's case, but I think essentially no one thinks that he acted correctly. I don't know how many mosquito nets he bought, but I agree that if he bought enough, it might be that he net raised utility, and if that is so, it's something to be thankful for. But it doesn't make him some kind of utilitarian saint unless he couldn't have done even more good by some other course of action that wouldn't have hurt the ponzi scheme victims and brought opprobrium on the whole EA movement

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