Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Claude Fable 5

anthropic.com

Post reply on HN
Print view View original

471–480 of 1001 posts

Re: Claude Fable 5

#471

Post by properbrew »

mohsen1 wrote: post #436

It seems like Fable will refuse to do any work when it comes to developing LLMs or even asking questions about topics related to LLM. Simple things like asking to explain a paper fails! From the model card: In light of the ability of recent models to accelerate their own development, we've implemented new interventions that limit Claude's effectiveness for requests targeting frontier LLM development (for example, on…

> frontier LLM development

This seems so wide reaching if it's catching simple things like explaining a paper. Does this also refuse to help with any already developed training pipelines?

I can kind of understand the generation of synthetic data, but nerfing the assistance of training pipelines just seems like a really shitty thing to do.

Re: Claude Fable 5

#472

Post by 0xbadcafebee »

Nothing a large fine-tune on infosec research with an average model couldn't also achieve. It's not like they have secret security knowledge or something, they're just generating large infosec datasets and then training on it.

In 6 months, every piece of software in the world will be getting probed by a script kiddie with some GPUs and a fine-tuned local model. Don't think for a second every cyber gang out there isn't working on this now.

Traditional app development is cooked. We have to accept that, and start changing how software is made and used, today. We can't keep churning out crappy CRUD apps with random libraries and hoping nobody pentests our stacks. Redteaming needs to become part of the SDLC, as well as certified-secure releases of libraries. Because if you don't do it, the hackers definitely will.

Re: Claude Fable 5

#473

Post by HAL3000 »

Ask Claude Code (I tried on Opus 4.8) to do this: "create a file with ISO country mappings"

API Error: Output blocked by content filtering policy

Re: Claude Fable 5

#474

Post by cyberpunk »

izzylan wrote: post #397

I've been testing this out and I think my SWE career is dead in the water. Genuinely wondering what value I bring to my employer right now. What value I will bring in a few months when this gets cheaper. I think we're screwed. I may only be an SDE 2 at FAANG but I don't think I have promotion opportunities in my future anymore.

Yeah. I’m not looking forward to years of retraining to earn half the salary either. Us old timers at least got a good 15-20 years out of it. Bananas.

Re: Claude Fable 5

#475

Post by __blockcipher__ »

mohsen1 wrote: post #436

It seems like Fable will refuse to do any work when it comes to developing LLMs or even asking questions about topics related to LLM. Simple things like asking to explain a paper fails! From the model card: In light of the ability of recent models to accelerate their own development, we've implemented new interventions that limit Claude's effectiveness for requests targeting frontier LLM development (for example, on…

Anthropic is really speedrunning their evil arc as fast as possible. Can't use them for basic LLM research, cybersecurity, or beyond-surface-level discussions of biology and virology, but Anthropic is allowed to sell Claude to the trump administration to kidnap maduro and to bomb iran. And don't get me started on that $100M autonomous killer drone swarm contract that they applied to and rationalized as non autonomous...

Re: Claude Fable 5

#476

Post by throwfaraway4 »

mohsen1 wrote: post #436

It seems like Fable will refuse to do any work when it comes to developing LLMs or even asking questions about topics related to LLM. Simple things like asking to explain a paper fails! From the model card: In light of the ability of recent models to accelerate their own development, we've implemented new interventions that limit Claude's effectiveness for requests targeting frontier LLM development (for example, on…

"for example, on building pretraining pipelines, distributed training infrastructure, or ML accelerator design"

Oh man all of those runaway infrastructure buildouts by our agents trying to achieve singularity...

Just say you don't want to lower the bar for others to compete

Re: Claude Fable 5

#478

Post by mkrd »

Open source models seems to be 1-2 years behind the frontier, so I am very excited to see what happens when those open source labs get their hands on capabilities like this to accelerate their own development speed.

Re: Claude Fable 5

#479

Post by purple-leafy »

simonw wrote: post #46

Pelican for Fable 5 on default settings is a clear improvement on Opus 4.8 Fable 5 default: https://gist.github.com/simonw/036bee5a703e7ec84e34efa974438... Opus 4.8 (the "max" one is closest to Fable): https://simonwillison.net/2026/May/28/claude-opus-4-8/#and-s... Now here are the Fable pelicans for all five of the thinking effort levels - low, medium, high, xhigh, max: https://tools.simonwillison.net/markdown-svg-r…

Do we need a pelican every single time a model is released? Beating a very dead horse.

Fun at first, seems disingenuous now. A site funnel

Re: Claude Fable 5

#480

Post by [deleted] »

unsupp0rted wrote: post #374

> Drug design: Using Mythos 5, our internal protein design experts accelerated aspects of the drug design process by around ten times. In one example, they found that Mythos 5, with protein design and bioinformatics tools but no human assistance, matches or beats skilled human operators. In doing so, the model executes all of the tasks that are normally completed by a scientist: choosing binding sites, selecting and…

[deleted]
Post reply on HN