Broadcom Offers Anthropic $42 Billion to Lease Its Own Chips

Broadcom has agreed to lend Anthropic up to $42 billion so the AI lab can lease chips Broadcom helps design, Anthropic’s IPO prospectus shows. The convertible notes could later turn into Anthropic stock. Anthropic is preparing a public listing that could value the company at more than $2 trillion.

The same filing warns that Broadcom’s dual role as supplier and financier creates potential conflicts of interest over access to computing power. Broadcom did not comment, and Anthropic declined to comment.

Broadcom Wears Three Hats on One Customer

Amazon, still named by Anthropic as its primary cloud and training partner, mostly sells the lab capacity and a route to Claude customers. Broadcom sits in a tighter knot. It co-designs the tensor processing units with Google, helps lease that silicon, and has now agreed to finance the bill.

The prospectus says Anthropic should become Broadcom’s largest customer in the chip-design business in 2027, the year the next TPU wave is due to come online. Robert Leitao, managing partner at Rothschild & Co, said the financing boom has narrowed onto a short list of names that still have to earn the revenue that pays for it.

THREE ROLES, ONE COUNTERPARTY

• Chip design: Broadcom and Google have worked together on several generations of TPUs, the accelerators Anthropic is leasing for Claude.
• The lease: Anthropic has a five-year commitment of $125.2 billion for TPU computing capacity, and the convertible notes could cover about a third of that sum.
• The loan: Broadcom may name a financing partner, and the debt can convert into Anthropic shares, though Anthropic said it does not expect any notes to be sold before the IPO is completed.

That is vendor financing with an equity kicker. Money that Broadcom extends is meant to come back as orders for Broadcom silicon, and it may come back again as stock in the customer. Seaport Research analyst Jay Goldberg said Nvidia has already put a large share of its own balance sheet behind chip sales, and Broadcom is having to follow.

The $35 Billion Chip Loan That Came First

The $42 billion line in the prospectus is not cash Broadcom has already wired. It is a facility Anthropic can draw to pay for infrastructure, and the lab says the notes should wait until after the listing. The credit that is already working sits in a different vehicle, closed in June.

On June 9, 2026, Broadcom, Apollo, and Blackstone’s credit and insurance arm announced the AI XPV Platform, launched with a $35 billion transaction for more than 1 gigawatt of Anthropic capacity at Fluidstack sites from mid-2026. The platform is built to support more than 20 gigawatts of XPU and networking deployments for labs including Anthropic and OpenAI through 2028.

A special-purpose company borrows, buys the racks, and leases them to Anthropic. Apollo-led funds and Blackstone sit on the debt. Broadcom does not write the full check. It stands behind the senior slices so the paper can clear at a lower rate, and it can step in on a default to take over the lease or sell the racks.

TWO FACILITIES, TWO JOBS

Campbell Hutcheson at Epoch AI, walking through the first gigawatt, found that about $30 billion of senior TPU debt carries Broadcom’s support, with a thinner junior slice that does not. The unsupported paper was priced at 8.5%, against 5.75% on a Broadcom-backed senior tranche, which is the spread lenders charged to sit closer to Anthropic’s own credit. Funding is staged as machines land, with about $24 billion expected out by summer 2027, so the collateral and the backstop grow together.

Next-Generation TPUs Come Online Starting in 2027

The larger lease that the $42 billion notes are sized against was sketched on April 6, 2026, the same month Anthropic says it parked cash in a restricted account for Broadcom’s benefit. Anthropic, Google, and Broadcom said they had signed for multiple gigawatts of next-generation TPU capacity due to start coming online in 2027, mostly in the United States, on top of a November 2025 pledge to put $50 billion into American computing plants.

We are making our most significant compute commitment to date to keep pace with our unprecedented growth.

Krishna Rao, Chief Financial Officer, Anthropic, April 6, 2026 announcement

That day Anthropic put its revenue run-rate above $30 billion, up from about $9 billion at the end of 2025, and said more than 1,000 business customers were each spending over $1 million a year, double the count from its Series G raise in February. Claude still runs across AWS Trainium, Google TPUs, and Nvidia GPUs. Amazon remains the primary cloud partner.

Broadcom’s current report the same day was more cautious. It confirmed a long-term pact to develop and supply Google’s future TPUs, plus networking for Google’s next AI racks through 2031. Separately, Anthropic would access approximately 3.5 gigawatts through Broadcom from 2027 as part of the larger TPU commitment. Use of that capacity, Broadcom wrote, depends on Anthropic’s continued commercial success, and the parties were already talking with operational and financial partners.

FROM THE TPU PACT TO THE PROSPECTUS

1. April 6, 2026: Anthropic, Google, and Broadcom expand the TPU partnership; Broadcom files the 3.5-gigawatt report; Anthropic deposits restricted cash for Broadcom.
2. June 9, 2026: The AI XPV Platform launches with the $35 billion Apollo and Blackstone tranche for more than 1 gigawatt at Fluidstack sites.
3. September 2, 2026: Broadcom Chief Executive Hock Tan tells investors Anthropic is on track to be the firm’s largest custom-chip customer in 2027.
4. September 28, 2026: Details from the confidential IPO prospectus, including the $42 billion 2025 net loss and $518 billion of compute bills, reach the public.
5. October 1, 2026: The prospectus language on Broadcom’s $42 billion convertible facility becomes public.

Tan and Anthropic Chief Executive Dario Amodei were in the same White House room on September 29, 2026, at a lunch for tech leaders hosted by President Donald Trump, two days after the first prospectus figures circulated.

What the Prospectus Says Can Go Wrong

The conflict language is not a boilerplate aside. Anthropic told future shareholders that Broadcom’s pricing and hardware choices could affect whether the lab can get enough computing capacity to do its work. The supplier that is supposed to keep Claude in silicon is also the party that can make that silicon scarce or expensive.

The restricted cash posted in April 2026 can be increased in some cases. Certain payment or performance defaults, the lab warned, could make a substantial portion of its lease obligations due at once, while also blocking it from using the $42 billion facility to cover those same bills. The backstop and the acceleration clause can close on the same day.

WHAT WE KNOW

• The cap: Broadcom has agreed to lend Anthropic up to $42 billion against infrastructure spending tied to the TPU lease.
• The conversion: The notes can turn into Anthropic shares, and Broadcom can bring in another financier.
• The cash trap: Restricted cash already sits for Broadcom’s benefit, and extra deposits may be required.
• The June book: The $35 billion XPV vehicle is live, with Broadcom behind about $30 billion of senior debt and a reported maximum exposure of $29 billion.

WHAT IS UNCONFIRMED

• Drawdowns: Anthropic does not expect the convertible notes to be sold before the IPO, and the prospectus does not show a conversion price.
• The partner: Broadcom has not named any financing partner it might designate on the notes.
• Listing date: Backers have talked about a debut after the November 2026 U.S. midterm elections; that timetable is not a priced deal.

The missing conversion price is the quiet term. Until it is set, no one can say how large a slice of a $2 trillion company Broadcom could claim for financing chips it already gets paid to design.

It feels that there’s quite a concentrated bet right now on two companies being able to generate enough revenues to support all the financing that’s happened.

Robert Leitao, Managing Partner, Rothschild & Co

Fiscal 2027 Puts Anthropic Ahead of Google

On Broadcom’s fiscal 2026 third-quarter call on September 2, 2026, Tan raised the firm’s AI semiconductor outlook to about $115 billion in fiscal 2027 and, for the first time, put fiscal 2028 at $230 billion. He said supply is already booked for the 2027 figure and that demand sits above it. The AI line includes custom accelerators and the networking chips that stitch the racks together.

He also said Anthropic is on track to become Broadcom’s largest XPU customer in 2027 and to hold that rank in 2028, passing Google, the company whose TPUs Broadcom has co-designed for years. OpenAI, in his telling, would sit second. Four of Broadcom’s six custom customers, he said, will grow to enormous scale. Those forecasts assume Anthropic keeps buying. The April 8-K had already tied the 3.5-gigawatt slice to the lab’s commercial success.

Two weeks later, after Amodei published an essay urging the industry to slow the race on capabilities, Tan told Jim Cramer on Mad Money that the 2027 and 2028 AI targets had not moved. Inference demand, he said, would stay strong even if training schedules shifted. Broadcom’s stock still dropped, because the custom-chip story now runs through one private customer that has not yet listed.

Google is not a bystander. It designs the TPUs with Broadcom, sells Anthropic cloud capacity, and, on the Fluidstack sites that house the first gigawatt, has been willing to stand behind rent if the operator misses payments. The $42 billion notes sit on top of that stack: Google silicon, Broadcom design, private-credit ownership of the racks, and now a path for Broadcom into Anthropic’s cap table.

The $2 Trillion Listing Inherits Bills It Cannot Cancel

The confidential prospectus, circulated in late September 2026, is the first full look at what Claude costs to run. Revenue in 2025 grew 12-fold to nearly $4.6 billion. The operating loss widened to $8.06 billion from $2.98 billion in 2024. Compute and infrastructure spending hit $7.33 billion. The GAAP net loss was $42 billion, but about $34 billion of that was a non-cash charge as older financing instruments were marked up when Anthropic’s implied value rose, not cash leaving the building.

Usage fees brought in about $3.8 billion. Subscriptions added $789 million. Sales through cloud marketplaces were about $2.16 billion, or 47% of revenue, and Anthropic paid those platforms about $351 million, roughly 16 cents on each of those dollars. Two unnamed customers each accounted for 12% of 2025 sales, and the lab warned that many large clients are not locked in. Cash, cash equivalents, and short-term investments were $20.28 billion at the end of 2025, before the $65 billion Series H in May 2026 that priced the company at about $965 billion.

The number hanging over the listing is $518 billion of future cloud, compute, and infrastructure obligations, with about 80% written so they cannot be canceled. The prospectus assigns at least $111.1 billion to Google from April 2026 through July 2033, $110 billion to Amazon from May 2026 through April 2036, and $31.4 billion to Microsoft from November 2026 through May 2033, about $252 billion across those three clouds. If spend on Google falls short, Anthropic said, it must pay the difference, and similar true-up language sits in the Amazon pact.

LOCKED COMPUTE BILLS IN THE PROSPECTUS

THE 2025 SCORE THAT THE $2 TRILLION PRICE MUST OUTRUN

• Revenue: Nearly $4.6 billion, 12 times the prior year.
• Operating loss: $8.06 billion, against $2.98 billion in 2024.
• Compute spend: $7.33 billion inside the year’s operating costs.
• Year-end cash: $20.28 billion, before the May 2026 Series H.

Those cloud contracts are also backlog for the hyperscalers. A lab that lost $8.06 billion from operations in 2025 is now large enough that Google, Amazon, and Microsoft are booking its future spend as their own. The $125.2 billion TPU lease is the Broadcom-shaped piece of the same pile. The $42 billion facility is how Broadcom has offered to help Anthropic pay Broadcom.

Anthropic says it does not expect the convertible notes to be sold before the IPO is done. Public buyers will still be asked to price a company whose largest chip partner can lend it money, take stock, set hardware prices, and, if payments slip, cut off the facility meant to cover the bill.

Disclaimer: This article is news reporting and analysis of Anthropic’s IPO prospectus and of Broadcom’s related company filings and statements. It is informational only and is not investment advice, a solicitation, or an offer to buy or sell Anthropic securities, Broadcom shares, convertible notes, or any related credit instrument. Readers should consult a licensed financial adviser or securities lawyer before acting on any valuation target, listing timetable, or financing term described here. Figures, customer ranks, and facility terms reflect the cited documents and remarks as of the dates given in the piece and may change as the offering and the debt papers are completed.