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Paper: A Persona-Based Evaluation Framework for Generative AI Alignment

https://arxiv.org/abs/2605.31021
1•atahankaragoz•2m ago•0 comments

Fabula about Maravel-Framework's tagged cache

https://marius-ciclistu.medium.com/the-api-grand-prix-the-sieve-of-the-nested-cistae-and-the-four...
1•marius-ciclistu•2m ago•0 comments

The Crazy Tech Used in This Years World Cup [video]

https://www.bbc.com/reel/video/p0nq37t3/watch
1•diamondosas•7m ago•0 comments

Greece to tax gains from crypto, sources say

https://www.reuters.com/business/finance/greece-tax-gains-crypto-sources-say-2026-06-05/
2•1vuio0pswjnm7•8m ago•0 comments

Mailvad – Privacy Based Email

https://mailvad.com/
1•eustoria•9m ago•0 comments

Show HN: Scale Physics – a physics encyclopedia with WebGL animations

https://scalephysics.com/
2•WizardK•9m ago•0 comments

Trees to Flows and Back: Unifying Decision Trees and Diffusion Models

https://arxiv.org/abs/2605.00414
2•rsn243•19m ago•0 comments

How to Not Let Them Get Away with It: The Mathematics of Infinite Exploitation

https://link.springer.com/article/10.1007/s00283-025-10457-3
1•crescit_eundo•21m ago•1 comments

Wearable broadband auscultation patch for remote healthcare monitoring

https://www.nature.com/articles/s41467-026-73636-6
1•bookofjoe•25m ago•0 comments

Nvidia is proposing a beast of a CPU system for Windows PCs

https://twitter.com/lemire/status/2062880075117113739
2•tosh•27m ago•3 comments

Boyd's Law of Iteration (2007)

https://blog.codinghorror.com/boyds-law-of-iteration/
1•simonpure•30m ago•0 comments

Show HN: StructOCR – API for parsing global passports, invoices, and containers

https://structocr.com
1•glyph_miner•31m ago•0 comments

Dallas Housing Market Cools as H-1B Visa Indian Buyers Vanish

https://www.bloomberg.com/features/2026-dallas-h1b-housing-market/
1•Anon84•32m ago•0 comments

Locomat – Recomputed Mathematical Tables

https://locomat.loria.fr/
1•Mr_Minderbinder•34m ago•0 comments

Life is too short for a slow terminal

https://mijndertstuij.nl/posts/life-is-too-short-for-a-slow-terminal/
3•emschwartz•34m ago•0 comments

Dwarkesh Patel grew his podcast

https://www.youtube.com/watch?v=kbydfaJsLSE
1•palindrome818•34m ago•1 comments

Saisca – offline supply chain risk analyzer (Excel/CSV → insights)

https://github.com/cayincoorts-hue/saisika
1•cayincoorts•36m ago•0 comments

Microsandbox – local-first programmable micro VMs

https://github.com/superradcompany/microsandbox
1•appcypher•40m ago•0 comments

Donut Lab's Manufacturing Is Different

https://cleantechnica.com/2026/06/04/donut-labs-manufacturing-is-different/
1•tromp•41m ago•0 comments

Free LLM inference handbook: 100 engineers cloned it in week 1

https://github.com/harshuljain13/llm-inference-at-scale
1•harshuljain13•42m ago•0 comments

Licenseal – CI license compatibility checks across 10 ecosystems

https://github.com/shcherbak-ai/licenseal
1•sergiishcherbak•42m ago•0 comments

Show HN: Sugi Atlas – 52K+ deterministic gene/drug/disease reference pages

https://sugi.bio/atlas/
1•timurg•42m ago•0 comments

Safety officials have a good idea of what a big rocket explosion can do

https://arstechnica.com/space/2026/06/safety-officials-finally-have-a-good-idea-of-what-a-big-roc...
1•bookmtn•43m ago•0 comments

Trump says his team will 'look into' US taking stake in AI companies

https://www.reuters.com/business/trump-says-his-team-will-look-into-us-taking-stake-ai-companies-...
5•YeGoblynQueenne•44m ago•1 comments

'Don't scare the cat ' Engineers find smarter way to measure quantum systems

https://www.unsw.edu.au/newsroom/news/2026/06/dont-scare-the-cat-engineers-find-smarter-way-to-me...
1•wjSgoWPm5bWAhXB•45m ago•0 comments

'Teachers Are Going to Hate It': How Social Media Apps Hooked Teens at School

https://www.nytimes.com/2026/06/04/us/social-media-schools.html
2•1vuio0pswjnm7•46m ago•0 comments

Sports-Related Curses

https://en.wikipedia.org/wiki/Sports-related_curses
2•thunderbong•46m ago•0 comments

Between Technical Standardizations and Practices of Resistance

https://cadernos.abralin.org/index.php/cadernos/article/view/980
1•ZunarJ5•48m ago•0 comments

Predator Void – A free browser-based stealth survival game

1•desinxstudio•49m ago•1 comments

Kevin O'Leary agrees to downsize Utah data center

https://www.theverge.com/ai-artificial-intelligence/943234/kevin-oleary-agrees-to-downsize-massiv...
2•1vuio0pswjnm7•56m ago•1 comments
Open in hackernews

Google will pay SpaceX $920M per month for compute

https://techcrunch.com/2026/06/05/google-will-pay-spacex-920m-per-month-for-compute/
78•ramanan•1h ago

Comments

amelius•56m ago
If you can't buy DRAM, you gotta rent your compute infrastructure.
cj•56m ago
What exactly is SpaceX's core business?
cryo32•51m ago
Smoking crack and investment fraud.

With a light sprinkling of space.

diordiderot•34m ago
Harvesting energy from the convulsions of people who got tds / tiktok psychosis during covid
hirako2000•46m ago
Its main business is connectivity. Starlink generated over 10B last year.

Becoming a broader infrastructure company with xAI.

ninkendo•38m ago
> Starlink generated over 10B last year

An entire one-hundredth of their proposed valuation!

sublimefire•31m ago
Starlink terminals are popular, they put them on drones to avoid jamming (Starling jamming exists but not that easy for now). It might be their sales are inflated due to its use at war.
jeltz•39m ago
Their satellite internet business is the only thing which makes them money, which is enabled by their orbital launch business which is as of right now not profitable and I have no idea of if it ever will be but without it they would not be able to launch enough satellites.

Their stupidity with AI and buying X mostly seems to be about scamming investors to make Musk even richer. Like this particular deal is just them doing what CoreWeave does at a SpaceX valuation.

sidcool•31m ago
I can understand this being a move to increase valuation, but I can't connect with the stupidity and scamming investors argument.
jeltz•26m ago
Sorry, I was unclear. With that I did not talk about this particular deal. This particular deal seems sane. XAI built more compute that they can use themselves since Grok is not very successful so to not just have the hardware standing there they rent it out to competitors. Makes total sense.

It is other things Musk has gone with Twitter and SpaceX which are shady.

Laurel1234•15m ago
I'm pretty sure xAI is just Musk throwing a tantrum after being played for a fool by Lying Sam.
ACCount37•12m ago
Launch isn't profitable simply because ongoing Starship R&D is eating into it. A lot of opex, capex, and pre-revenue.

If they start running Starship anywhere near the way they do Falcon 9, it'll flip into profits. A lot of big bets SpaceX made ride on Starship coming online. I'm honestly surprised Starlink is already so profitable without it.

One of their big named bets includes: orbital datacenters. Which puts this specific deal into perspective.

sourcecodeplz•34m ago
A datacenter that also provides connectivity/Internet
devops000•56m ago
“If we fail to deliver access to the committed amount of GPUs by September 30, 2026, then following a one-month grace period, Google may immediately terminate the agreement or accept the number of GPUs provided, with a corresponding pro rata reduction in the monthly fees. After December 31, 2026, the agreement may be terminated by either party upon 90 days' notice.”

https://www.sec.gov/Archives/edgar/data/1181412/000162828026...

It’s only to boost the IPO price. The agreement will last only a few months on paper. I doubt it is a real transaction.

ta988•53m ago
Didn't Anthropic pull the same in both ways? you pull me up I pull you up kind of deal? Sounds like SpaceX bought themselves some time up to Q4, which is not the case of Anthropic and even worse for OpenAI. Not counting that none of them got their S&P500 fast-track ticket.
merlindru•51m ago
why would Google help a competitor like that, though?
hirako2000•49m ago
The article mentions Google is heavily invested in it.
somewhatgoated•49m ago
How is Google competing with SpaceX?
doubtfuluser•55m ago
This feels actually like a pretty safe bet for Google, they secure the compute in case it works (I doubt that the described volume will be available in the near future), while if SpaceX doesn’t manage to provide there is not much loss. I see it more as another way of blowing up SpaceX valuation on paper…
tosh•55m ago
Is there any data on whether Google, Amazon, Microsoft, Anthropic, OpenAI etc are most cost efficient in getting datacenter compute online and operating it?

I'd be interested in how large the range is here across company and region and specific data center and how it relates to companies like Hetzner if at all.

cyanydeez•51m ago
that's asking the cart before the horse; is there any data on what compute actually results in real GDP improvements?
cryo32•49m ago
Nothing other than vendor promises and white papers.
sublimefire•35m ago
I’ve seen some numbers related to datacenters in Ireland and they would stress price per MW as a way to see where to build them. But then you have depreciation of equipment as well. Depreciation can be played with when filing taxes though.
onlyrealcuzzo•27m ago
> Is there any data on whether Google, Amazon, Microsoft, Anthropic, OpenAI etc are most cost efficient in getting datacenter compute online and operating it?

Well considering that ~80% of the price is hardware deprecation, I don't know why they'd be considerably worse than anyone else at negotiating hardware deals.

Typically when you buy in bulk, you have more sway.

Companies like Google also have in-house chips like TPUs that are substantially cheaper for inference for them to make than anyone else can get through Nvidia.

Signez•54m ago
Sorry, what?

Does this mean that SpaceX are the only company that really did build some datacenters to put all the million of GPU/TPU/whatever they all talk about everyday?

I mean, Google, Amazon, Meta and Microsoft told investors they spent more than $1B per day last year in CapEx... why on Earth do they (well, Google and Anthropic at least) need to rent compute to SpaceX, of all companies?

phpnode•52m ago
They overbuilt capacity for grok but no one wants to use grok for several reasons
transcriptase•48m ago
Yes but someone will be along shortly to defuse what sounds like giving the bad mars man credit where it’s due. Like everything else he does that works out, it was just luck, timing, actually a mistake that worked out, or someone else behind the scenes that he got lucky in hiring at the right time (by accident).
supertroop•45m ago
If he’s so smart why isn’t grok using all that capacity?
transcriptase•36m ago
Building excess capacity from the start and selling it for a billion a month to constrained competitors. I only wish I could be so dumb.
jeltz•30m ago
dtj1123•40m ago
380 dollars per second... Good to know I could afford my own data center for an appreciable fraction of a minute.
comboy•23m ago
plus $473 per second from Anthropic

> As part of that deal, Anthropic agreed to pay SpaceX $1.25 billion per month through 2029 to rent all the available compute from its Colossus 1 data center near Memphis, Tennessee, that xAI — now part of SpaceX — originally built for its own artificial intelligence efforts.

I don't get why SpaceX is going public. But anyway, well played, the whole crypto mining that dried out GPUs back in the day seems tiny now.

dwroberts•28m ago
Is this admission that google’s proprietary chips etc. are not cutting it? Why would you need a bunch of nvidia GPUs if you have your own silicon? (AFAIK they have their own for both inference and training do they not?)
ben_w•20m ago
Kinda; while it does show that overall Google's proprietary chips etc. are not cutting it, it doesn't say if the problem is the hardware itself or the factories to make more of the hardware. Without more information, it could be that Google's hardware is 100x the energy efficiency per token, but they can only make enough hardware for 1% of the tokens there's currently demand for: 1% of your product being 0.01% of your costs isn't nothing, but it leaves the other 99% at full price.
amazingamazing•15m ago
How do you come to this conclusion? All it means is that spacex has compute and google does not.

Suppose tpus were theoretically a million times better, but cannot be produced due to supply chain constraints, this action would still be rational.

My personal take is that this really shows how bottlenecked the entire supply chain is. For such an important commodity there are shockingly few players ready for scale.

trebligdivad•4m ago
It's a very long contract (till 2029) for just covering themselves for supply.
netdur•13m ago
Yes, it is issue of scale, google had to restrict usage because hardware are not available, regardless of what kind of hardware that is
comboy•20m ago
Google renting infra from xAI, I did not see that coming. My understanding of what computers are doing, what companies are doing and what governments are doing seems to be getting worse day by day.
ACCount37•8m ago
They're struggling.

The future needs more AI compute. No one has enough AI compute.

Memory chip vendors are betting hard on this being a temporary state of affairs that doesn't last, and doesn't warrant commissioning a shitton of new memory foundries.

Musk is betting hard on this staying that way, and is putting the next Colossus into the last place not corrupted by NIMBYs... SPACE!

est31•20m ago
These deals are part of how the AI economy operates. Amodei has explained this in his recent Patel podcast.

1. Building datacenters takes time. Months, if not years. They take billions of investment.

2. AI revenue is highly unpredictable. Sure, you can make predictions, but maybe your competitor releases a better model 2 weeks after your release, maybe the new model you built isn't as much better, maybe the chinese models steal your show, etc.

3. AI revenue grows a lot. Anthropic's case is 10x per year.

4. So if you are off by just a year in terms of how much GPU you actually need, then that means a 90% of your compute capacity is wasted, and you go bankrupt.

As a solution, companies buy compute from each other! If one company's model did well, they can buy compute from the company whose model didn't do well (like in the case of grok). It's beneficial for both sides, so positive sum game. So deals like this aren't something bad in itself.

It's nothing new either. In SAAS deals, you often commit to a certain revenue and then pay extra if your revenue exceeds that amount. And power market is cut in two as well: longer term deals plus spot markets. Spot prices are way higher than the longer term deal prices.

Given it's SpaceX of course there is financial engineering involved: the GPUs aren't actually owned by SpaceX but a daughter company, and it's been financed via loans that are backed by pension funds. So it's already the case that pension funds back bear the risks associated with SpaceX's operations.

Right now, the bulk of the AI bubble sits in such debt statements and not in public markets.

jordanb•9m ago
80% of the space launch business is putting starlink satellites into orbit, so it's all internal funny money. They could very well be letting the space launch business take losses to make the satellite internet business look better (only profitable part of the whole thing).

Wasn't starship supposed to be funded by the NASA contract?

an0malous
•
45m ago
They’re both AI companies
klodolph•37m ago
One of which has more capacity and wants even more, one of which has less capacity and is renting it out.
wiether•31m ago
One is an ad company the other a lifestyle venture?
sumeno•29m ago
In the way that Michael Jordan and myself are both basketball players
prymitive•26m ago
All companies are now AI companies. Just like a while ago all companies were suddenly Ads companies. The entire tech sector is one big FOMO - once you reach certain scale you do exactly the same thing as everyone else.
nutjob2•24m ago
In the sense that if you want to sell anything whatsoever today it must an AI story.
jnewton_dev•17m ago
I'd push back slightly — not on the conclusion, but on the reasoning. There's a simpler explanation that accounts for the same observations.
sublimefire•42m ago
If you look at the IPO filings you’ll see that Spacex as we know it is just a small part of the expected revenue generator. It is supposedly Grok and AI, hence Google competitor.
Forgeties79•37m ago
I can’t believe serious people use Grok. It has to be propped up by Twitter usage/Musk fans right? It really strikes me as the worst one.
devops000•49m ago
Maybe common investors want to sell stocks to retail
sorenjan•47m ago
Google (Alphabet) owns 6% of SpaceX which they bought for $12B in 2015. They want to maximize the value of their investment.
YetAnotherNick•13m ago
They are not. The amount of conspiracy in high ranked HN comments for AI companies is insane.
fauigerzigerk•48m ago
Either that or SpaceX is permanently turning xAI's assets into a neocloud because xAI itself has no traction.

The whole thing looks rather desperate. I wonder what SpaceX's margins are on these contracts.

ACCount37•37m ago
SpaceX has recently started pitching itself as an orbital datacenter company.

If you buy into that business model (or pretend to), it makes sense for SpaceX to start selling compute early. Their "earthside compute" clients of today are "skyside compute" clients of tomorrow.

A part of Musk's old pitch for Starlink was: space-based solar makes perfect sense for powering space assets, and no sense whatsoever for powering Earth assets. So you have to find a way to use that power in space to do something economically useful. Comms were the only scalable way to do that, so Starlink it was.

I can see how space-based datacenters would follow the same logic. If SpaceX can make them economical, that is. There's no guarantees of that - but if anyone at all can make space-based datacenters economical, it's SpaceX.

H8crilA•32m ago
Why would it ever be more economical to put datacenters in orbit, rather than on some dirt cheap land?
readthenotes1•21m ago
Because dirt cheap land usually does not have dirt, cheap water or dirt cheap electricity.
jordanb•15m ago
Water in orbit: famously cheap.
ACCount37•6m ago
Ah yes: computation. Famous for annihilating water. Every bit you flip consumes an H2O molecule.
newsclues•19m ago
The data link between earth and space has so much bandwidth.

There are sensors in space that send data to earth it gets processed and then the data is sent back to space then to the end user back on earth. If you do the compute in space you save the space-earth transfer time twice. Latency and availability of bandwidth are both factors.

There may be limited utility for this outside of military.

ACCount37•4m ago
There are no NIMBYs in space. No government permitting on land use. And solar power is plentiful. It's like a dollar store Dyson sphere.

Making use of that is predicated entirely on being able to put a lot of stuff into space cheaply. SpaceX is the undisputed best at that. The question is whether their "best" is good enough to make space datacenters economical.

formerly_proven•31m ago
When I hear space I think "that's the perfect location for a data center", since data centers are lightweight, small, require little power, don't need human intervention, have lifetimes measured in decades and don't have to reject heat. Since space easily satisfies these requirements, space is an ideal deployment location for data centers.
bonsai_spool•21m ago
Yeah... What am I missing? Like why isn't this just laughed at when it's proposed?
jordanb•16m ago
I felt the same way about the "tube with an air hockey table in it." But here I am fifteen years later eating crow as I take the hyperloop to Vegas.
readthenotes1•19m ago
This may be one of the rare instances where the sarcasm is obvious without using the sarcasm font
nutjob2•28m ago
Space-based datacenters simply won't work. That people are talking about them shows Musk is the greatest snake oil salesman the world has ever seen.
saimiam•22m ago
> won’t work

A datacenter (earthbound or space) itself is a fantastical idea until a mix of events and inventions made it feasible to build them to sell compute.

newsclues•17m ago
You think the military can’t or won’t dump billions into this to make killing people with drones more effective?

It’s a engineering challenge not impossible.

rpdillon•17m ago
Can anyone explain how the thermals will work? One of the biggest challenges on Earth is cooling the data center, and it's at least as challenging in space.
happosai•28m ago
> if anyone at all can make space-based datacenters economical, it's SpaceX

Let's hope burning ten thousand tons of toxic e-waste annually in upper atmoshphere never becomes economical. Or mankind gets to senses and bans externalizing your e-waste problem by burning in atmosphere...

mrcwinn•21m ago
This is all just the typical Elon hate. What's desperate about getting paid $920,000,000 per month? If that's desperation, I'd love to start groveling more!

Given extreme supply constraints, it's very unlikely that Google or Anthropic will just suddenly cancel right after the IPO unless their own demand collapses. And even if this were true, what value would that provide Musk? Could you imagine if your newly public company suddenly received termination notices from your two largest compute customers? Disaster.

Try logic.

fauigerzigerk•6m ago
I have no love or hate for Elon Musk. I wish him luck with his space endeavours.

What's desperate is announcing a temporary (allegedly) doubling of revenues days before an IPO that has been criticised for being overpriced at 93 times sales.

These data centers were supposed to serve xAI. Now suddenly they get rented out to others. Why the sudden change of plans?

It's either an emergency accounting gimmick or the effective shutdown of xAI.

Mistletoe•44m ago
Feels like these IPOs are thankfully the top coming before the AI crash and we get back to the real world.
b40d-48b2-979e•30m ago
One can hope, but that sentiment is quite unpopular on HN.
YetAnotherNick•18m ago
I don't think they are most efficient for small GPUs. I think they might only be the one which have capex and certainty required for multimillion dollar purchase of GB200 NVL72 or something of that scale.
If your dad had owned an emerald mine I am sure you could also have been that dumb.

But to be more serious: It is impossible to say if this is good or bad for XAI without more numbers. What if they bought their compute way over market price and sell it at a loss?

infinitezest•37m ago
People with access to enormous wealth tend to get a lot of chances at the betting table.
hirako2000•44m ago
Scarcity. It's becoming difficult to plan for new data centers. They will rent where capacity is available. Grok hasn't gain the expected popularity.
jeltz•33m ago
No, CoreWeave for example also rent compute to the big AI companies. This likely just means Grok has few users so they need to rent their extra capacity to their competitors.
fellowmartian•30m ago
Plus it’s not like some absolutely enormous data centers, only 300MW.
throw1234567891•11m ago
It could be, or simply we are so far away into chip shortage that even google needs to buy from other people’s pot.