Anthropic is expanding to Colossus2. Will use GB200

aurareturn 122 points 113 comments May 20, 2026
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https://xcancel.com/nottombrown/status/2057194829986300375

Discussion Highlights (16 comments)

aurareturn

More signs that xAI might be giving up on the AGI race. xAI let Cursor train a model on Colossus 2, gave the entire Colossus1 to Anthropic, and is now giving compute in Colossus2 to Anthropic as well.

fasbg1

I though Claude is too woke. Musk has posted that at least 50 times in the last year. But booking outrageous rental fees as fake AI revenue ahead of the SpaceX IPO apparently takes precedence.

amazingamazing

I don't see a scenario where it really makes sense to be a frontier lab long term. Eventually model quality will plateau then you distill and get 90% for 10% or less cost.

alienreborn

Why is xAI giving up their advantage? Is this a signal that their frontier model improvements are plateauing and decided there is no value in hoarding all their compute?

gaze

I think that's the datacenter with the gas turbine generators that operate without permits because they're "portable." Data centers have tremendous externalities but colossus is a particularly nasty offender, and not just due its size. Edit: They did it with Colossus and now they're doing the exact same thing with Colossus2. https://www.selc.org/news/xai-built-an-illegal-power-plant-t...

urams

Very possible Elon is doing this to make give Anthropic better chances against OAI while he attempts to reshape xAI. Also possible he sees infra as the future of xAI if he really believes in the value of space compute. Hard to see this any of this as anything other than a bearish sign for Grok though.

jgalt212

Too bad Enron is still not around. They'd have some real fun with today's electrical markets.

throwatdem12311

Cool. Can they make Claude not absolute dogwater then?

brightball

https://x.com/nottombrown/status/2057194829986300375?s=20

virgildotcodes

Here's a probably stupid question - if someone were unbounded by ethics and conceivably had enough power and connections to power to shield themselves from many consequences of their actions - and that person owned these DCs, could they in theory observe all the streams of tokens coming in and out of these models, and even exfiltrate copies of these models wholesale to have their own teams do what they will with them in the pursuit of building their own competitive models? Or is there something fundamental in the way these models get deployed (encryption or something or than legal contracts?) at this scale that prohibits the owners of the infra from gaining this level of insight / access?

mrcwinn

Anthropic is gross for this. The grandstanding about principles and values is intolerable.

labrador

Musk said Anthropic Claude was woke DEI until he said it wasn't. It must be hard for Musk fans to keep up.

ChrisArchitect

Related: SpaceX S-1 https://news.ycombinator.com/item?id=48213933

nelox

I predict SpaceX will subsume Anthropic at some point.

momo26

Does an expansion of computing power on this scale imply that computing capital is displacing model architecture as the true moat in AI competition?

zitterbewegung

Seems like either Grok is being shut down or it will be "powered by anthropic" soon.

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