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Chris Paxton

@cpaxton.bsky.social

5.6K followers 1.4K following 3.1K posts

AI, robotics, and other stuff. Currently AI @ agility robotics Former Hello Robot, NVIDIA, Meta. Writing about robots https://itcanthink.substack.com/ All opinions my own

itcanthink.substack.com

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Chris Paxton @cpaxton.bsky.social · Aug 27

Vision-Language-Action models are the foundation of a new wave of generalist robots: networks that take in images from robot cameras (vision) and instructions (language) and produce robot trajectories. We are seeing a remarkable convergence in how these work; more: open.substack.com/pub/itcanthi...

Vision-Language-Action Models and the Search for a Generalist Robot Policy

VLAs are general-purpose robotics models. But how are VLAs doing in the real world. and which ones are people using?

open.substack.com

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Chris Paxton @cpaxton.bsky.social · 1h

we're definitely already past (2) though, at least for some things.

Chris Paxton @cpaxton.bsky.social · 1h

ugh probably

Chris Paxton @cpaxton.bsky.social · 2h

yeah i think this is fundamentally
correct

Chris Paxton @cpaxton.bsky.social · 2h

can't believe real people say things like "let's double-click on that" in real life. insane level of corporate slop. have some self respect.

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Reposted by Chris Paxton

Grace @gracekind.net · 13h

Reflecting on that thread about LLM cognition from a few days ago.

A few people have reached out in support, which I appreciate a lot. I’ve been in hellthreads before, and they usually don’t bother me, but that one was genuinely upsetting…

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Reposted by Chris Paxton

Tim Kellogg @timkellogg.me · 4h

how are people measuring “day long task”?

1. it took codex a day
2. it would’ve taken me a day

prinz
Sam Altman:
@deredleritt3r • 16h
"I don't think Codex is that far away from a week of work. Like, probably not a 2025 thing, but, I was talking to some people today and they're like, I can't believe that it's doing daylong tasks now."
•••

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Chris Paxton @cpaxton.bsky.social · 3h

should be (2)

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Chris Paxton @cpaxton.bsky.social · 3h

Do you really think this is even a bubble?

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Reposted by Chris Paxton

Eugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 4h

For image moderation systems there are only three possible choices:
1: automated / “AI”
2: make humans see horrible things
3: no images at all

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Chris Paxton @cpaxton.bsky.social · 16h

If what a research engineer does *now* is automated imo that doesn't mean the research engineer job goes away; just like how accountancy changed with excel and personal computers. I do see the point I'm just a mass unemployment skeptic

Reposted by Chris Paxton

Ted Underwood @tedunderwood.com · 18h

We are now paying debts incurred by bsky-team's very conciliatory approach to ill-informed anxiety last winter about the HuggingFace dataset. (Anxieties that seemed then, as now, to be at least partly an excuse for dogpiling people.) Glad to see conciliation has some limits. Better late than never.

ellie lockhart (she/they) @eleanor.lockhart.contact · 20h

Absolutely nothing about this site’s architecture stops AI companies from scraping and training on it right now. The company everyone is freaking out about has clear license terms that say they aren’t doing that, but anything you post here is absolutely being used by someone for training

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Chris Paxton @cpaxton.bsky.social · 19h

brett adcock on twitter

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Chris Paxton @cpaxton.bsky.social · 1d

but i think automating research engineer roles doesnt mean mass unemployment necessarily; it means a change to the shape of employment in our economy.

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Chris Paxton @cpaxton.bsky.social · 1d

i think shorting ad companies that rely on consumer spending would be reasonable; but the stock market as a whole would presumably do fine so chips, manufacturing, energy

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Chris Paxton @cpaxton.bsky.social · 1d

Nvidia stocks

Chris Paxton @cpaxton.bsky.social · 1d

This is in fact done by a human normally, I think you're underestimating how hard it is to do simple stuff like this with traditional automation

Reposted by Chris Paxton

zeu @zeu.dev · 1d

bring back techno optimism

windows xp background
top half being of a bright blue sky with clouds, bottom half being of rolling green hills

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Chris Paxton @cpaxton.bsky.social · 1d

Itll get there

Reposted by Chris Paxton

brennan @brennan.computer · 1d

you talk using realtime video to anyone in the world via satellites from the back of a self-driving car that takes you to see the self-landing rocket launch that happens every 3 days

your shirt is made of recycled bottles, it's softer than cotton.

your pocket supercomputer coded an app by itself

Chris Paxton @cpaxton.bsky.social · 1d

At some point you're gonna have to admit we are living in a science fiction novel, we've got SpaceX rockets and computers that talk to us and you can buy an android at the store and even some flying cars in China

norvid_studies @norvid-studies.bsky.social · 1d

science fiction like if the talking computer from star trek could converse with you in natural language. oh w

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Reposted by Chris Paxton

Tim Duffy @timfduffy.com · 1d

Not sf but I like this prediction of them from Tesla in 1926

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Reposted by Chris Paxton

thebes @vgel.me · 1d

i wrote a custom llm sampler for llama-3.1-8b so it could only say words that are in the bible

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Chris Paxton @cpaxton.bsky.social · 1d

R1 and g1 for comparison

Reposted by Chris Paxton

olafinho.xyz @olafinho.xyz · 1d

‘Oh, I bought my humanoid on sale during Black Friday’ soon

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Chris Paxton @cpaxton.bsky.social · 1d

norvid_studies @norvid-studies.bsky.social · 1d

science fiction like if the talking computer from star trek could converse with you in natural language. oh w

max and 19 others 🌌 @sneptech.bsky.social · 1d

holy shit this comes up so often for even non-controversial topics

talking about the promise of atomically precise manufacturing gets you looked at like you've got two heads. yet Feynman's essay on this topic all the way back in 1960 talked both about APM, and nanometer computing hardware!

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Chris Paxton @cpaxton.bsky.social · 1d

I've seen this stuff enough irl I believe it, although it's insanely well executed because unitree are like the best at this