A look at the Nvidia-OpenAI deal, where Nvidia will invest in $10B tranches; sources say OpenAI informed Microsoft about the deal a day before it was signed

ABILENE, Texas - Sam Altman had a deadline. OpenAI's CEO was headed to Texas to unveil his company's next big infrastructure push …

CNBC 2025-09-23 MacKenzie Sigalos

Context & Ripple Effects

OpenAI’s infrastructure ambitions grew out of a compute relationship in which Microsoft’s earlier backing was followed by a costly scramble to assemble Nvidia GPU capacity, as described in OpenAI’s early effort to secure tens of thousands of Nvidia GPUs. This deal shifts Nvidia from supplier to a more direct financial participant in that expansion.

The arrangement also became a test case for AI infrastructure financing: reporting immediately afterward raised questions about its potentially circular structure, while later coverage described smaller Nvidia investment figures within a broader OpenAI fundraising effort.

First-order effects

Staged $10B investments give OpenAI a defined financing path for its infrastructure push while giving Nvidia a mechanism to commit capital over time rather than all at once.
Microsoft is immediately affected as OpenAI’s existing strategic backer: being notified only shortly before signing underscores that Nvidia is becoming a separate, consequential partner in OpenAI’s compute strategy.

Second-order effects

The deal intensifies scrutiny of whether chip-vendor investment and customer infrastructure spending reinforce each other, a concern raised in coverage of the proposed investment’s circular financing mechanics.
Microsoft, Nvidia, and OpenAI will need to manage overlapping roles as investor, compute provider, and platform partner; that raises the value of clearer commercial boundaries even where all three remain aligned.

Third-order effects

If such arrangements proliferate, access to frontier AI infrastructure may increasingly depend on vendors financing the customers that buy their systems, concentrating capital and supply relationships among a small set of firms.
The subsequent discussion of Nvidia investments ranging from $20B to up to $30B suggests that headline commitments can be renegotiated as fundraising and capacity plans evolve, making durable financing structure as important as announced scale.

The trend: AI infrastructure is moving toward vendor-backed compute finance, where capital commitments, chip supply, and customer demand are negotiated together rather than separately.

Discussion

@dylan522p Dylan Patel on x
Yo I heard if u press Up, Up, Down, Down, Left, Right, Left, Right, B, A in Sam Fransisco there's an infinite money glitch [image]
@sama Sam Altman on x
Grateful to Jensen for the almost-decade of partnership!
@gneubig Graham Neubig on x
In case anyone was wondering, 10GW is about 6% of the energy that all humans in the world spend thinking.
@jonkeegan.com Jon Keegan on bluesky
Nvidia's $100 billion investment in OpenAI to develop AI infrastructure is just the latest in a series of massive data center mega projects, measured in gigawatts and millions of GPUs. Here's our guide to the biggest AI center projects announced so far: — sherwood.news/tech/cl…
@deanwball Dean W. Ball on x
[image]
@altryne Alex Volkov on x
“Our vision is simple: we want to create a factory that can produce a gigawatt of new AI infrastructure every week” Very Simple Kardashev scale vision from Sama
@sama Sam Altman on x
Abundant Intelligence: https://blog.samaltman.com/...
@kimoco Kim on bluesky
Is he dipping into Musk's stash?
@picklerudd Uncle Jeff on bluesky
As a former air permit engineer, I wonder what state is going to permit this and how much money will be “invested” to influence it [embedded post]
@ruemcclammyhand @ruemcclammyhand on bluesky
this man's brain is so fucking cooked dude [embedded post]
@ersatzverite @ersatzverite on bluesky
If only you could short what Sam Altman wants. [embedded post]
@krasdale @krasdale on bluesky
Sam Altman says that if you vote for him for class president he's going to put free soda machines in every classroom and all week will be Pizza Fridays, plus no more homework. [embedded post]
@thetattooedprof Kevin Gannon on bluesky
Well I want to create a factory that can “produce a gigaton of vanilla caramel fudge ice cream every week” and I plan to reveal more details....later — I will not be taking any questions at this time, thank you [embedded post]
@edzitron.com Ed Zitron on bluesky
shut the fuck up god damn i'm so sick of everybody just quoting this guy as he tells ridiculous lies again and again [embedded post]
@sungkim Sung Kim on bluesky
Interesting.... Sam Altman wants to build more in the U.S. — “We are particularly excited to build a lot of this in the US; right now, other countries are building things like chips fabs and new energy production much faster than we are, and we want to help turn that tide.”
r/artificial r on reddit
Sam Altman's vision for a future where AI infrastructure is everywhere
r/singularity r on reddit
Abundant Intelligence - Sam Altman blog post on automating building AI infrastructure
@aschilling Andreas Schilling on x
That about 40,000 Vera Rubin NVL144 racks that will be deployed. But it depends on how much NVL144 CPX and Rubin CPX is in the mix here.
@benbajarin Ben Bajarin on x
Have to assume cost per rack rises as well from $4m a GB rack to maybe $5-$6m per VR rack? Meaning this deal, over its time frame is >$200b. $NVDA is also investing $100B in OpenAI to “support this deployment.”
@puckthepilot @puckthepilot on bluesky
Talk about a self licking ice cream cone. — The manufacturer of the chips is investing in the purchaser of the chips to help them continue to purchase more chips.
r/CryptoCurrency r on reddit
Nvidia plans to invest up to $100 billion in OpenAI
r/NVDA_Stock r on reddit
Nvidia plans to invest up to $100 billion in OpenAI as part of data center buildout
r/wallstreetbets r on reddit
Nvidia plans to Invest up to $100 Billion in OpenAI

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