Google to pay SpaceX $920M a month for compute capacity at xAI data centers

76 pointsposted 12 hours ago
by toephu2

99 Comments

kart23

11 hours ago

google: we are commited to carbon free data centers by 2030 (https://sustainability.google/reports/247-carbon-free-energy...)

also google: renting capacity from a data center powered by 27 methane gas turbines on trailers

https://www.epw.senate.gov/public/index.cfm/2026/4/whitehous...

btian

11 hours ago

The deal ends in June 2029, which is before 2030.

minraws

11 hours ago

So you mean to say Google knows AI definitely won't be needed after June 2029... Understood...

dumbmrblah

8 hours ago

So their hands are clean, but they’re outsourcing the dirty work.

cameldrv

11 hours ago

Do people think those numbers are correct? 920 million a month for 110,000 GPUs is $11.61 per GPU hour. That seems very high to me.

spunker540

11 hours ago

I think in the case of supply-constrained GPUs, you can get the opposite of a volume discount. Google has the most capacity of anyone, the fact they’re paying so much per month to spacex is pretty remarkable

SlinkyOnStairs

10 hours ago

The contract has some clauses that lets Google pay less if SpaceX can't deliver the full amount of GPUs.

But $12/hr is probably quite accurate. SpaceX' datacenters are horrifyingly expensive, and regular GPUs are being rented below cost in many cases.

Just the gas turbine power alone is horrific. Doubles or triples the power bill and adds a big chunk of depreciation.

wmf

11 hours ago

With ~$2.1B/month of GPU rental revenue, is xAI now profitable? Are all divisions of SpaceX now profitable?

redox99

11 hours ago

Yes, but as Elon himself remarked, these are short term leases (90 day exit window), not guaranteed long term contracts.

tristanj

7 hours ago

Yes they should be profitable. If SpaceX maintains profitability for 12 months, they are eligible for SP 500 index inclusion, even under the old rules

Elon is pulling financial engineering black magic to make this happen.

shostack

7 hours ago

More like incredibly lucky that the global hardware market dried up for compute capacity even as his AI product flopped. Right place at the right time.

I just dislike that it is now harder to avoid giving Musk money directly or indirectly.

wnmurphy

12 hours ago

Which means more Grok degradation, more severe throttling, etc.

I can't understand why xAI charges 50% more per month for Grok over competitors when it doesn't even gracefully downgrade to a cheaper model when paid subscribers hit the limit.

root-parent

12 hours ago

Who uses Grok? Not even SpaceX engineers that is known...

glimshe

10 hours ago

Grok is pretty good. It really excels when the results can be improved by deep online search. It tends to be more aggressive in looking things up than competitors. I use it in certain situations.

sheepscreek

10 hours ago

It’s exceptionally fast at it too. I love using it for looking up things where recency matters.

cherry_tree

7 hours ago

Yes let’s use the nazi AI to learn about current events. Nothing can possibly turn out poorly from more people doing that!

rootusrootus

11 hours ago

Tesla drivers, at least for a few minutes each day before hitting the limit.

brianwawok

7 hours ago

I am a Tesla driver and I never knew it had a limit, which tells you how much I use it.

tristanj

7 hours ago

Grok is the best for researching recent events and real-time information. All the other AIs have a learning date cut-off too far in the past.

Claude accuses me of hallucinating events that happened the day before, and it's quite annoying.

no-name-here

7 hours ago

Gemini, Claude, and ChatGPT all offer web search integrations in order to get recent data.

Grok 3 and Grok 4 have a 2024 knowledge cutoff. https://docs.x.ai/developers/models

tristanj

6 hours ago

Grok has access to the X firehouse, and gives context on realtime events much better than the models you listed.

I wish Meta made their own AI/search model because they probably have the best data source.

guywithahat

11 hours ago

I've used/use it. For a while it had one of the best lightweight coding LLM's, which actually lead to a #1 spot on openrouter usage ranking although they've fallen off the top 10 used now. It's also provided some good reasoning models, which perform better when dealing with non-PC topics.

Also, although I've never used it for this, I believe some of the paid models produce some of the best "adult" content, and I know there are even subreddits which do nothing but praise Grok and "content" produces who use it.

nikcub

11 hours ago

> which actually lead to a #1 spot on openrouter usage

that was only because it was free

infecto

11 hours ago

+1. The coding model was fine and it was fast but the fact that it was free was a massive boost.

yread

11 hours ago

> reasoning ... with non-PC topics

do you have examples? Do you ask "reason why women belong in the kitchen" or what?

guywithahat

10 hours ago

Without giving too many details I thought it would be fun to make 2D games based off of banned books (sort of as a marketing ploy, paradoxically everybody likes banned books). Camp of the saints seemed like a good target, which is a fictional book based in 1980's France dealing with incoming flotillas of immigration. I found that ChatGPT would push back on the premise of the novel instead of coding, while grok models just called things "edgy" and went to work.

I have more examples (mostly dealing with realtime web filtering) but that's the immediate one that comes to mind.

user

9 hours ago

[deleted]

JumpCrisscross

8 hours ago

> can't understand why xAI charges 50% more per month for Grok over competitors

One potential read is xAI knows Grok isn't going to be a Tier 1 model. So while SpaceX focusses on infrastructure, Grok bets its users like its model enough that they'll pay a premium for it, even if this curtails growth prospects.

paulpauper

11 hours ago

They already make it required to have a premium X account

Claude has tons of throttling already. Chat GPT is not as accurate at computational problems despite less throttling. Gemini has fewest restrictions but worse quality. Always a tradeoff.

9dev

12 hours ago

Why would you even want to use that dumpster fire of a model in the first place..?

mschuster91

12 hours ago

Probably because it has all but zero filters on the input and output. It took widespread media outrage about "grok show me her in a bikini" to at least create a filter that bans such things.

[1] https://counterhate.com/research/grok-floods-x-with-sexualiz...

user

11 hours ago

[deleted]

Analemma_

11 hours ago

Does the thing where it wanted to move every conversation onto the topic of "white genocide in South Africa" not count as a filter on the output?

sandeepkd

12 hours ago

> SpaceX said in the filing that if it fails to “deliver access to the committed amount of GPUs by September 30, 2026,” Google can immediately end the agreement, or accept the number of GPUs provided at a reduced fee after a one-month grace period.

> After this year, the agreement can be terminated by either party provided they give 90 days’ notice.

Circular financing at its peak for the IPO. There has to be some regulatory body to not allow such shady things

JumpCrisscross

12 hours ago

> Circular financing

Circular financing would require SpaceX to buy a similar quantity of stuff from Google. (Or invest in Google.) We have no evidence of that. Instead this looks like Google taking advantage of SpaceX’s desire to print revenue today versus a month from now.

(If the agreement is terminated with no exchange of goods, it might be market manipulation. But still not circular financing.)

singron

11 hours ago

It's circular since Google owns part of SpaceX. According to [1] they own 7% of SpaceX, so a $1.75T IPO would value their stake at $120B. The target IPO price is >90x revenue, so if Google increases SpaceX's revenue by $11B, SpaceX's valuation could increase by $990B to maintain the same multiple, which would increase the value of Google's stake by $69B.

1: https://finance.yahoo.com/markets/stocks/articles/alphabet-s...

JumpCrisscross

9 hours ago

> It's circular since Google owns part of SpaceX

Not what circular financing means. Buying from a company you own stock in can be a conflict of interest, but it's only circular if you invest in the company and then they use those proceeds to buy your stuff. A past investor buying services from a company they are affiliated with is pretty par for the course in business.

SlinkyOnStairs

11 hours ago

Their exposure is more than just their ownership of SpaceX.

If the SpaceX IPO bombs (or even merely underperforms), the expectations for the Anthropic/OpenAI IPOs collapse, and with that, everything else AI.

AI companies can't afford to let any AI company go down.

singron

10 hours ago

I'm not sure this is true for Google. Ignoring their equity in Anthropic, AI is generally a threat to Google, since it's the closest thing to upsetting their search monopoly. The best case for Google is if OpenAI and Anthropic are way out over their skis, and Google is the only major player left with their sturdier financial position. The worst case is if ChatGPT/Claude completely displace search and nobody wants to pay for gemini. I find it unlikely that all three go down for the same reason.

spikels

4 hours ago

Google is paying $12.00 per gpu-hour which costs SpaceX $1.50-$3.50.

Who's taking advantage of who?

sandeepkd

11 hours ago

> Alphabet has made a windfall from backing SpaceX. Musk’s company was worth $12 billion at the time of Google’s 2015 investment

How come its not a circular deal where google is investing little bit more money to make a whole lot more money

jjtheblunt

11 hours ago

that's not circular though

Robotbeat

10 hours ago

It’s only circular if it violates my narrative, of course.

fancyfredbot

9 hours ago

It's circular when money flows from A to B and then back from B to A again.

This is a series of transactions in which money flows from Google to SpaceX. There is no flow of money from SpaceX to Google. So it's not a circle.

JumpCrisscross

8 hours ago

More to the point, allegations of circular financing are about following cash. When NVIDIA invests in a company so they can buy NVIDIA chips, that raises a unique set of questions distinct from other types of conflict of interest. Affiliated parties doing business, as is the case between Google and SpaceX, has its own host of conflict-of-interest concerns. But they're distinct from those that arise in circular transactions.

darth_avocado

12 hours ago

> Circular financing

Keep in mind, Google has a 6% stake in SpaceX, so this is more like exchanging millions to gain billions.

harmmonica

11 hours ago

Yeah, I just looked this up because my first thought was another circular financing deal (or not circular by definition but certainly backscratching). Looks like Google's SpaceX stake, diluted, based on a cursory search, at a $1.5T valuation is somewhere in the $80-$100B neighborhood (bought back in 2015 I think is what it said when SpaceX was valued in the low tens of billions if I'm remembering correctly). So you have Google sending $12B back to SpaceX annually in this deal, so maybe 12% or so of their equity stake at that valuation. I'm not sure how to feel about it other than a means of swaying people to buy into the IPO with the added benefit of actual compute value.

And seems silly to ignore that the Google founders and Elon are buddies, or were, based on which gossip rag you believe in, and there's zero chance these types of deals are being made independent of those guys talking (when are they ever, of course, but it's even more obvious in this case given the players and their histories).

Havoc

9 hours ago

Closer to just vanilla juicing numbers than circular

HDThoreaun

12 hours ago

There is nothing shady or circular in the text you quoted

sandeepkd

11 hours ago

I avoided adding too many details, made a base assumption that folks on this topic would already be aware of google's investment in spaceX, probably should have added that too

JumpCrisscross

8 hours ago

> made a base assumption that folks on this topic would already be aware of google's investment in spaceX, probably should have added that too

Still doesn't make it circular financing. If SpaceX issued Google a dividend right after Google paid SpaceX, that would be circular.

Havoc

9 hours ago

I guess their training runs aren't going great if they're dumping all the compute they can.

Or I guess juicing the numbers for IPO

harmmonica

12 hours ago

Tangent alert: a couple of questions for folks who know far more than I do about compute capacity and Google these days...

Lately, like the past few months, I've noticed Google services (search, gmail, drive, maps) running very slowly to the point where, at the moment it happens, I always think it has to be my connection and not Google, but sure enough every time I check a couple of speed tests and they're... fine. And then I don't seem to be having the same latency from other sites/apps. Is there any chance that the commingling of the AI snippet and then directing users into the AI funnel through the text box is actually causing material performance impacts in other Google properties? Probably a dumb question because I can't imagine they would allow performance for broader properties to suffer for AI prompts/chats, but then again all this talk of compute starts making me think otherwise, like the prolific amount of prompting and chatting is causing massive across-the-board performance issues.

Somewhat related, but does anyone use Gemini and end up with the experience where you have a chat and it's obvious, to yourself and to Gemini, that you're trying to find a product to purchase, but Gemini doesn't even link you to what you would think would be the obvious place to purchase the product? This happens daily where I interact with it, it suggests some products, but won't even provide a link to that product or, if it does provide a link, it's to some no name site that wouldn't come up as a highly-ranked paid or organic result through regular Google search. Keeps making me think this is a Google performance problem where they have not figured out how to take the entire AI chat and engineer it back into a simple short keyword phrase to get an acceptable search result.

Btw, if anyone's thinking "why are you using Gemini because it's the worst?" I think that's fair and right. I have... reasons, but they're not super sensible ones.

spprashant

8 hours ago

Couple of anecdotes from the last week.

Yesterday the Gmail virus scanner stopped working. For a while I couldn't download my attachments. A few minutes later it said the virus scanner was offline and download at your own risk.

Meet audio seems to be having a particularly bad week. It just doesn't work with headphones. Their testing tool indicated everything was fine. It's worked after I logged off and on. Audio quality issues are getting more common as well.

opwieurposiu

10 hours ago

Yes. When I plug my phone into the car it used to use google assistant to process voice commands and it was pretty fast. Now for some reason it has switched to Gemini and it takes twice as long to play a song or send a text. Sometimes Gemini forgets it even has the ability to play songs. Gemini is better at answering random questions that the kids ask though.

bluecalm

11 hours ago

Maybe agentic PRs made it to production and performance cratered.

On a serious note I feel the same. Google is slow these days and the slowest and least reliable service of them all is Gemini. Sometimes I don't even know if it hang already (no error messages) or if it's still "thinking".

jeffbee

11 hours ago

Do you still perceive search and maps to be slow even when logged out?

harmmonica

11 hours ago

I'm probably 50/50 with search in particular logged in vs. out and I do think I notice on both, but I'm not entirely sure. Just saying the search and maps algorithm is wading through so much of my history that it can't help but choke trying to deliver the "right" results?

jeffbee

11 hours ago

No, but I was thinking it might be possible that your account is specifically afflicted by some storage problem. For example, it could be homed in the wrong part of the world, compared to where your browser is hitting frontend applications. Or a million other possibilities. When logged out those wouldn't be factors.

sam_bristow

7 hours ago

Wait, are these the same GPUs that were diverted from Tesla into xAI a couple of years ago?

paulpauper

11 hours ago

Space-X is an AI/datacenter company that also makes rockets

dmode

10 hours ago

It's not an AI company. It is a datacenter company. While all frontier AI labs are fighting for compute SpaceX is give up compute, instead of reserving it for their own models. That tells you all we need to know

0xbadcafebee

11 hours ago

And cars, and 18-wheelers, and satellite internet, and home/commercial battery backups, and (formerly) solar roof tiles

Robotbeat

10 hours ago

That is Tesla.

fancyfredbot

9 hours ago

For now. SpaceX will be acquiring Tesla as soon as Elon gets around to it.

yalogin

11 hours ago

So space data centers are absolutely possible then. I heard a lot of skepticism about the feasibility but it looks like Google and Anthropic looked at SpaceX and trusted them to deliver on the promise and even signed deals worth billions.

timy2shoes

11 hours ago

They are paying for the existing earth-bound data centers SpaceXai owns.

yalogin

11 hours ago

Oh wow did not realize xai has data centers. So are they completely abandoning xai or do they just have that much capacity left over?

jeffbee

12 hours ago

I thought it was notable that in Google's press release yesterday regarding their new facilities near Amarillo they seemed to go out of their way to point out that the applications are not AI, listing "Search, Gmail, Maps, Cloud, online banking, and 911 systems" instead. I wonder if they find it more convenient to rent an existing one rather than face public scrutiny for building another "AI data center".

foobarian

11 hours ago

I wonder if they are more than happy to let someone else take on the burden of the massive writedowns that are bound to hit in a couple of years.

no-name-here

7 hours ago

Burden in terms of tax implications, or in terms of the investment possibly not being profitable?

jeffbee

11 hours ago

Perhaps. It also seems to insulate Google from the risk that air quality regulators will be unexpectedly reinvigorated, while still providing to Google the benefits of xAI's lawlessness.

fancyfredbot

8 hours ago

In other news, the gold rush has entered a new phase as miners pivot to selling shovels.

BonoboIO

12 hours ago

How did Elon get so much NVIDIA hardware before everyone else?

JumpCrisscross

12 hours ago

> How did Elon get so much NVIDIA hardware before everyone else?

He’s the richest man on the planet and doesn’t have a track record of not paying for shit he buys. If you want to reliably offload your chips, he’s safer than e.g. OpenAI who might or might not have the money when the bill comes due.

ckastner

12 hours ago

> He’s the richest man on the planet and doesn’t have a track record of not paying for shit he buys.

My impression was the other way around. The shenanigans he pulled around the Twitter acquisition were just farcical, and at Twitter he repeatedly refused to pay owed rent, etc. (I assume as a ploy to renegotiate terms).

usefulcat

10 hours ago

> doesn’t have a track record of not paying for shit he buys

You mean like the time he committed to buying Twitter and then tried to back out of a legally binding contractual agreement to finalize the deal?

4ffss

6 hours ago

"doesn’t have a track record of not paying for shit he buys"

Hahaaha. A solid admission of being clueless.

Elon has a strong track record of doing shady stuff to get out of deals.

novok

12 hours ago

I've heard the harder part is to have data centers to put the nvidia hardware than getting the hardware currently.

retr0rocket

12 hours ago

Because he went all in with money before a lot of other people.

He moved as fast as he could with known financing

verdverm

11 hours ago

Google is getting in bed with some folks even more unsavory than themselves. The thing I noted most from I/O was how prominent and proud the are of partnering with Palantir. "Do no evil" has become "Let's do evil"

user

7 hours ago

[deleted]

superkuh

12 hours ago

Another way to read this is, "Twitter's AI dept. has been doing so badly they don't have a use for billions of dollars of hardware they bought."

etempleton

12 hours ago

The downfall of Twitter is one of the most spectacular self inflicted business failures I have ever witnessed.

Amazing to think it was once so ingrained in mainstream society.

stri8ted

11 hours ago

What metrics are you using to classify it as a downfall?

etempleton

6 hours ago

Impact in the zeitgeist. Twitter was everywhere. Regularly referenced on live news television statins. Was considered a major news source. Shows had segments dedicated to it. Everyone and every brand had a Twitter. That is not the case today. Not by a long shot.

guax

11 hours ago

I don't care either way but I got curious.

Not an easy thing to gauge. X/Twitter stopped publishing MAUs after the acquisition.

External estimates vary, some point to growth, some to stagnation. We know that revenue suffered. LOTS of partisan and emotional opinions for either.

Google trends does paint a bleak picture for X but I am also questioning how much google itself can gauge that after LLMs exploded in popularity.

Anecdotally I did notice that references and embeds to X are way less prominent and common than before. My usual news used to be filled with them. My consumption of the platform also plummeted after not being able to read threads when not logged, its much harder for me to get drawn into it.

Still without data, I would be surprised if the changes to verification and logged out access did not massively hurt new adoption. With tiktoks prevalence amongst a new generation I would bet its a matter of time before X gets grouped to tumbler/facebook, not dead, but way past its peak and cultural relevance. If that has not already happened.

LorenDB

10 hours ago

> Not an easy thing to gauge. X/Twitter stopped publishing MAUs after the acquisition.

You're in luck. IIRC some of the SpaceX IPO marketing materials said they have 550M MAU.

shimman

10 hours ago

Reddit has more monthly active users than twitter and reddit isn't really culturally relevant at all (neither is twitter either IMO).

user

11 hours ago

[deleted]

Analemma_

12 hours ago

On the one hand, yes, this is really embarrassing for Grok. On the other hand, everyone except a couple Twitter randos already thinks Grok is worthless junk: there's no reputation left for it to to lose. And Elon is crying all the way to the bank with an extra $11bn in annual revenue.

sorenjan

12 hours ago

Is this another circular investment to help pump up the stock valuation? Why would Google need to rent that much compute?

> Google parent Alphabet has made a windfall from backing SpaceX, which was worth $12 billion at the time of its 2015 investment, and is looking to go public at a valuation of over $1.75 trillion

verdverm

11 hours ago

antigravity is a token hog