Yoav Artzi

@yoavartzi

Research/prof @cs_cornell + @cornell_tech🚡 / nlp.cornell.edu / researcher @GoogleDeepMind / building @COLM_conf / ex @arxiv

New York, NY yoavartzi.com Joined June 2011

194 Following 20K Followers 816 Posts

Latest posts 5

Yoav Artzi @yoavartzi 2d

An excellent read for anyone thinking about industry labs, and their future

John Langford @JohnCLangford 2d

The End of AI Frontiers hunch.net/?p=13764006 .

There's a bit of a train wreck here that's painful to express. Nevertheless, it's a significant event for me and quite a few other folks involved so I wanted to memorialize a bit.
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Yoav Artzi @yoavartzi 5d

Exactly what my concerns were about: want to change a trained network to do something? Just bypass (e.g., using very large activations) the network to quickly bake your logic. This got little to do with modifying an existing representation space.

Kevin Russell Verified account @kevrussell 5d

We asked Claude Opus 5.5 and GPT-6 Astra to fix a small trained driving network so the car reaches the goal. Their working fixes didn't need what the network learned. x.com/kevrussell/sta…

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Yoav Artzi @yoavartzi 6d

@DimitrisPapail thoughts about this? My sense is that there are two distinct types of results here: (a) setting weights from scratch to simulate a target logic; (b) modifying weights of an existing network with representation acquired through backprop.

I seem to remember you played a lot with (a). Right? So curious to hear your thoughts. They even cited you (+2 points ;) )

Rikiya Takehi @rikiyatakehi 6d

We asked GPT-6 Astra to edit Qwen3.5-0.8B weights to improve math.
It directly changed only 0.016% of weights, fixing 0.8B's reasoning loops & improving math up to 6x and even instruction following 3x, without gradients or training.

We call this Weight-Space Programming: frontier LLMs can now natively read/write neural network weights! 🧵
Blog: rikiyat.github.io/blog/weight-sp…

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Yoav Artzi @yoavartzi Nov 2

Cornell (and me) is hiring postdocs, with focus on technical AI/ML research. Deadline for full consideration is Dec 15.

I am recruiting through this call as well. I encourage applying as early as possible, because I am starting to review folders now!

Application link ⬇️

Yoav Artzi @yoavartzi Oct 28

Highly recommended! I learn tons from working with Jonny

Jonny Cook @JonnyCoook Oct 28

Internship opportunity!

I'll be hosting a Student Researcher next year @GoogleDeepMind.

Humans got to the moon with roughly the same brains as our ancient ancestors; culture did the work. Can a population of frontier agents compound their abilities by accumulating artifacts?
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