Anthropic $36 Billion TPU Debt Deal: Broadcom Is the Credit, Google Backs the Data Centers, Anthropic Is the Lessee

Anthropic raised $65 billion in May. It is preparing for an October IPO. Its valuation sits at $965 billion. But none of these numbers buy a single watt of electricity.

The company's real capital stack is far more interesting than its headline valuation, because Anthropic is not borrowing the $36 billion that keeps showing up in the headlines. An SPV is. Anthropic is not the credit behind that debt. Broadcom is. And the entity guaranteeing the data centers Anthropic will deploy those chips in? Google - its direct AI competitor.

Decompose the number, and the story stops looking like a startup financing round and starts looking like a structured-finance play built on credit substitution.

The Debt Structure

The $36 billion in private credit arranged by Apollo Global Management and Blackstone breaks into three tranches, according to market sources and an Apollo statement filed in June:

• $6 billion in A1 "super-senior" notes - priced at T+100 (Treasury plus 100 basis points). Wells Fargo serves as global coordinator; BNP Paribas, Citi, and UBS are joint bookrunners.
• $25 billion in A2 first-lien senior notes - priced at an all-in yield of 5.50%–5.75%. Goldman Sachs, Bank of America, and Morgan Stanley are joint placement agents.
• $4.5 billion in B second-lien notes - priced at an 8.5% fixed coupon. A smaller portion of this tranche is being syndicated out; Apollo and Blackstone are retaining significant portions.

That is the arithmetic. The mechanism is what matters.

The A1 and A2 tranches - totaling roughly $31 billion - are not underwritten on Anthropic's credit. Anthropic is an unrated, pre-GAAP-profit company five years old, preparing for its first public offering. Its credit profile does not support a $36 billion investment-grade facility.

So the deal uses Broadcom instead. Broadcom, which co-designs the Google TPUs being purchased, has provided a "residual value support" agreement. The mechanics: if Anthropic stops making lease payments, the SPV sells the chips. If the chips don't fetch enough to make A1 and A2 investors whole, Broadcom covers the shortfall. That puts the senior tranches' credit profile in line with Broadcom's investment-grade rating - a trillion-dollar semiconductor company whose corporate bonds trade in the 4%–5% yield range across maturities.

The A1 tranche at T+100 reflects this. At a spread of roughly 100 basis points over Treasuries, it is pricing close to what you'd see on a high-grade corporate bond, not on startup risk paper. The A2 tranche at 5.50%–5.75% sits above Broadcom's own bond yields, but well below what a pre-profit AI company would pay if it were borrowing in its own name. The B notes at 8.5% are where the actual Anthropic risk lives.

This is not how chip financing used to work. Until CoreWeave's $2.3 billion Magnetar-Blackstone deal in 2023, GPU collateral was almost exclusively equity-financed. CoreWeave's later $8.5 billion delayed-draw term loan in March 2026 was the first to achieve investment-grade ratings - but that rating rested on Meta's credit quality as the off-take counterparty, not on chip collateral alone. The Anthropic deal is structurally distinct: the chip manufacturer itself has agreed to underwrite the secondary market for its own product.

The Google Problem

Here is where the topology gets circular.

The TPUs being purchased with this $36 billion facility are Google-designed chips, co-developed with Broadcom. Google already holds an approximately 14% equity stake in Anthropic and agreed in April 2026 to invest $10 billion more. Google is also the counterparty on 5GW of next-generation TPU capacity that Anthropic announced in its Series H press release.

But Google's role goes deeper. The five physical data centers where these chips will be deployed - built by former crypto miners TeraWulf (two sites in New York and Texas), Cipher Digital (Texas), Hut 8 (Louisiana), and a Next Frontier-Fluidstack joint venture (Indiana) - all carry what Bloomberg reports as a "Google backstop." Google agrees to step in and repay bondholders if Fluidstack, the cloud platform leasing the facilities, defaults or goes bankrupt. The five facilities collectively raised over $15 billion in bonds to fund construction.

Separately, a $15 billion Texas data center package led by Nexus Data Centers involves a $14 billion bridge loan with Google providing financial guarantees on lease and power-purchase commitments. Google gets an estimated 20% equity stake in that project in return.

Put it together: Google is selling the chips, financing the purchase of its own chips, guaranteeing the data centers that host those chips, and holding equity in the company using them - while Gemini competes directly with Claude on the AI frontier. That is not a partnership. That is a capital loop.

Anthropic's Series H announcement also disclosed $15 billion of previously committed investments from hyperscalers, including $5 billion from Amazon. The same round includes commitments from Micron, Samsung, and SK hynix - the memory and storage suppliers whose products run inside every AI data center. The compute stack is being financed by the companies that make the components.

What This Is, and What It Isn't

This is not an AI demand story, even though it's framed as one. The number everyone repeats - $36 billion - sounds like evidence of infinite appetite for Anthropic's infrastructure. But the number is not a demand signal. It's a credit-structure proof point.

The real signal is narrower. The deal shows that AI compute has matured to the point where a bankruptcy-remote SPV can issue investment-grade tranches backed by chip collateral, with a manufacturer providing the residual guarantee. That is the institutionalization of GPU and TPU finance. The asset class - AI hardware - has graduated from high-yield to investment-grade, and the mechanism that made it possible was not demand but credit substitution.

But credit substitution carries a hidden asymmetry. The senior $31 billion of this deal is protected by Broadcom. The $4.5 billion B tranche and the SPV equity are not. If Anthropic's revenue growth falters, or if its October IPO fails to attract public market demand, the loss waterfall hits the B notes and SPV equity first. Apollo and Blackstone are keeping significant portions of those junior positions. They are not offloading the real Anthropic risk to outside investors.

There is also the TPU resale question. Broadcom's residual value guarantee is only as good as the secondary market for custom Google TPUs. Unlike NVIDIA GPUs - which have a broad, liquid aftermarket across independent data center operators and crypto miners - TPUs are architecture-specific. They are purpose-built for Google's software stack and Anthropic's workloads. If the chips cannot be redeployed to another customer, the residual value drops to scrap. Broadcom's guarantee is a contingent obligation, not a balance sheet liability, which means its own ratings and capital position are insulated. But the guarantee's real worth depends on whether a TPU aftermarket can develop at scale.

What to Watch

The deal was syndicated in mid-2026 and features a delayed-draw format that lets money come down as chips become available. The structural questions that matter are not whether Anthropic is growing - its run-rate revenue crossed $47 billion in May, and the company serves more than 300,000 business customers - but whether the capital stack can hold together under stress.

Broadcom's contingent exposure. The residual value support covers roughly $31 billion of senior debt. That is not a liability on Broadcom's balance sheet today, but it is a contingent obligation that scales with the TPU aftermarket. Watch Broadcom's credit spread movements and any rating agency commentary on this arrangement.

The B-note holder concentration. If Apollo and Blackstone retain the majority of the $4.5 billion junior tranche, the Anthropic risk is concentrated inside two asset managers rather than distributed across the private credit market. That matters for loss absorption if the deal goes south.

TPU aftermarket development. Whether custom TPUs can be resold or redeployed across multiple customers is the unresolved variable underpinning the entire senior-credit structure. If TPUs remain single-tenant assets, Broadcom's guarantee becomes the primary recovery mechanism - and its practical value depends on Broadcom's willingness to invoke it.

The October IPO. Anthropic is preparing to go public, with Morgan Stanley serving as a lead banker - the same bank acting as joint placement agent on the A2 tranche. The IPO will test whether public market investors see the $965 billion valuation as anchored in revenue or in compute commitments financed by competitors' balance sheets. That test will determine whether this credit substitution model becomes the template for the next frontier AI lab - or a cautionary case study.