Posted by ramanan 6 hours ago
> 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.
Liquidity for investors. They raised everything they could from private markets, government contract, debt, the remaining source of financing is from the public
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.
I think a more accurate phrasing of the Valor GPU deal would be something like this:
"SpaceX’s AI compute buildout relies in part on off-balance-sheet or lease-style financing vehicles. Valor-owned vehicles purchased Nvidia GPU infrastructure and leased it to xAI/SpaceX subsidiaries, with Apollo providing debt financing and SpaceX or subsidiaries guaranteeing some obligations. That creates indirect exposure for institutional and retirement capital, though not necessarily direct pension-fund ownership of SpaceX operational risk."
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.
The whole thing looks rather desperate. I wonder what SpaceX's margins are on these contracts.
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.
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...
Expressing water usage in gallons makes it seem really large, too. NASA says[0]:
Scientists estimate that about 48.5 tons (44 tonnes or 44,000 kilograms) of meteoritic material falls on Earth each day.
I think we'll be fine. Pour all that frustrated energy you have into substantially reducing the amount of incredibly hazardous d-waste [3] big commercial operators burn up into our atmosphere, instead.
[0] <https://science.nasa.gov/solar-system/meteors-meteorites/#h-...>
[1] According to [2] there are currently 10,413 satellites. At an assumed 1760 lbs each, this works out to roughly 10.4 tons.
[2] <https://www.space.com/spacex-starlink-satellites.html>
[3] "dino"-waste, AKA CO2
I did. what. the. hell? Maybe my swiss-cheese brain read the "," in 10,413 as a decimal separator? I guess that's what I get for posting while old. Thanks for the correction and supporting arithmetic.
Though, I still stand by my "please for the love of everything, get to complaining about CO2 because this thing you're complaining about is a damn nothingburger" conclusion. (I am sufficiently aware to notice that that you're not OP, so the "you" in that pseudoquote is not directed at you.)
Making use of that is predicated entirely on being able to put a lot of hardware into space cheaply. SpaceX is the undisputed best at that, no one comes close. The question is whether their "best" is good enough to make space datacenters economical.
Well, Earth orbit isn't.
It is definitely to escape most political pressures on Earth. They will never be able to sidestep the US feds, but aside from an open war with China or Russia, all other authorities are out of the game when it comes to space.
Which tells you something about why space data centers makes no sense.
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.
Evaporative cooling is the way it happens down on earth - and that shuttles h2o molecules from dense useful clumps like aquifers and rivers to a less useful form spread out in the air. But evaporating h2o isn’t an option in space afaik - since there’s a shortage of air to take up the h2o. In fact I think radiative cooling is the only actual option in space.
Looking forward to watching spacex defeat physics.
Everybody knows.
Musk is a snake oil salesman (that’s been clear since the self-driving car promises) but he also has made a lot of people a lot of money and that’s all anybody really cares about.
None of his companies have a traditionally reasonable valuation. Is there any reason to think that’s going to change soon?
The reason people don't do it here is because it's too expensive.
But it doesn't matter since in this scenario each chassis is powered exclusively by the respective panel. How hot does a black panel sitting in the midday sun get? That's your equilibrium temperature. As long as it's within the operational limit of the device there's no problem.
The reason earthbound DCs are difficult to cool is because of density. When you match up panels to devices and shelter in their shadow you no longer have anywhere near the same power density.
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.
It’s a engineering challenge not impossible.
After all, it's just an engineering challenge, not impossible.
Now if you have space based manufacturing or fuel production on the other hand ...
Its not a real argument it's just used because to most people the military is a big mysterious thing they don't understand which they think has an infinite budget for things.
Compute is "free" at that point because waste heat is coming out of the total energy flux which was already accounted for (because we modeled it as opaque).
Of course swapping out the equipment poses a bit of a challenge. The "helping hands" rate is entirely unaffordable and wait until you see this new DC's physical access policies. 0/10 would not rack with them again.
In the Anthropic deal they have to be negative; Anthropic's announced higher margins during the deal.
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.
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 or repurposing of xAI.
And once the compute crunch is over, they’ll have a lot of overprovisioned data centers with no business to soak up the capacity.
I don’t think their models are competitive with Google, and Google obviously has the best distribution imaginable, but they definitely are a competitor.
Of course this is a real deal. Compute is the most valuable resource in the world for these companies at the moment.
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.
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.
Wasn't starship supposed to be funded by the NASA contract?
It is other things Musk has gone with Twitter and SpaceX which are shady.
With a light sprinkling of space.
Becoming a broader infrastructure company with xAI.
Obviously Starlink can and will growth. I'm just pointing out how insane the market cap is, when compared to similar scale "connectivity" businesses.
was just answering the question.
An entire one-hundredth of their proposed valuation!
There’s a reason Elon keeps trying to get investors to believe his “data centers in space” lunacy, because you need that sort of magic pixie dust to justify why any of this valuation makes sense, let alone have anywhere to go but down.
Did Musk blindly order humongous amounts of GPUs years ago before any of us had any sense of the scale this was going to reach?
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.
1. Indeed, Google is compute-constrained, and is ready to buy any it can.
2. xAI (now SpaceXAI) has a lot of idle compute, which it resells to Cursor, Anthropic, Google, probably others as we speak.
In other words: Google is training models, xAI is not.
"Both SpaceX and Google have the option to terminate the agreement with 90 days’ notice after December 31, 2026"
In other words, this is a fake IPO booster
Fellowship of the Ring.