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Claude Fable 5

anthropic.com

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Re: Claude Fable 5

#383

Post by mhrmsn »

Are there any details on the biology and chemistry work they did?

For example, the AAV capsid assembly looks interesting, but for one Opus 4.8 also did relatively well and there is no information what exactly they did, what protein language models they compared to and what the score even means...

Re: Claude Fable 5

#384

Post by [deleted] »

jdrmar wrote: post #375

Homebrew is lagging a bit behind. If you want to use Fable right away, but still have claude code through homebrew, this is how you can do that manually: Edit the cask locally: brew edit --cask claude-code Set the version to 2.1.170 And set the sha256 to the correct values, which you can get by running curl https://downloads.claude.ai/claude-code-releases/2.1.170/manifest.json Here's what I've used: version "2.1.170"…

[deleted]

Re: Claude Fable 5

#385

Post by arkwin »

sebmellen wrote: post #6

Just commenting for posterity… if this is what it claims to be, I am not looking forward to how it will empower the people who submit bug bounties to us. Historically they’ve been people from certain identifiable countries (usually developing/poorer countries) using fuzzers with low-quality results. Now, those same people use the current-day models to good effect, but they still don’t have a true security edge and of…

I've been using Opus 4.6-4.8 in both my own and others' code to look for vulnerabilities, and I've found a few. I am also in the Cyber Verification Program.

Fable 5 gives me policy violation errors at the moment. No idea when or if it will be fixed.

Re: Claude Fable 5

#387

Post by kylehotchkiss »

andai wrote: post #119

> Distillation. We’ve previously identified large-scale attempts to extract (“distill”) Claude’s capabilities to train competing models in authoritarian countries. Glad to hear the UK is finally making an effort to catch up on the AI front ;)

wasn't claude distilled from the entire creative and research output of every English speaker alive

Re: Claude Fable 5

#389

Post by swyx »

jkelleyrtp wrote: post #33

On the new FrontierCode [1] benchmark (ie graded from an OSS maintainer's perspective of "would I merge this code?") - Opus 4.7 xhigh: 5.2% - Opus 4.8 xhigh: 13.4% - Fable 5 xhigh: 29.3% Seems like a huge jump. [1] https://cognition.ai/blog/frontier-code

jump in chart form https://x.com/swyx/status/2064414823748886591/photo/1

Re: Claude Fable 5

#390

Post by vitally3643 »

2001zhaozhao wrote: post #320
bkjlblh wrote: post #220

> 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 building pretraining pipelines, distributed training infrastructure, or ML accelerator design). Using Claude to develop competing models already violates our Terms of Service, but enforcing this restrictio…

How do they detect whether an experiment being done on a smaller model is used to improve a competing frontier model, or just an innocuous hobbyist LLM experiment?

Given how well the cybersecurity safeguards work, they probably don't.
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