Broadcom to lend Anthropic up to $42 billion for TPU chip leases, IPO filing reveals

Broadcom has agreed to lend Anthropic up to $42 billion to finance infrastructure spending, Anthropic's IPO prospectus discloses -- a convertible-note facility that would make the chipmaker simultaneously the AI lab's supplier, equipment lessor and lender.

Three hats: supplier, lessor and lender

Anthropic's IPO prospectus documents extensive partnerships with a handful of big tech firms, Reuters reported on Thursday, working from the filing. One stands out: chip maker Broadcom. The relationship spans compute supply, equipment leasing and financing, giving the semiconductor company what Reuters described as a central role in Anthropic's infrastructure buildout. That differentiates Broadcom from other major partners and investors such as Amazon, which primarily provides cloud infrastructure and distribution for Anthropic's model Claude.

The centerpiece is the financing. Broadcom has agreed to lend Anthropic up to $42 billion, and the debt would take the form of convertible notes that could be swapped into Anthropic shares. Broadcom could also designate a financing partner under the arrangement. Anthropic said in the filing that it does not expect any notes to be sold before it completes its IPO.

The commitment is large relative to the lease it supports. The convertible note Anthropic would issue could finance about a third of the $125.2 billion commitment the AI lab has made for a five-year lease of tensor processing unit computing capacity. In return, Anthropic stands to become the largest customer in Broadcom's bread-and-butter chip design business next year, according to Reuters.

'Potential conflicts of interest,' in Anthropic's own words

The prospectus does not present the arrangement as risk-free. Anthropic disclosed that Broadcom's role in supplying hardware and acting as a financing partner creates 'potential conflicts of interest' that might affect Anthropic's ability to access the computing power needed for its work, according to the filing. The lab also warned that Broadcom's decisions around pricing and hardware could affect its ability to procure enough computing infrastructure.

The filing spells out the credit-like mechanics. Anthropic said it deposited cash into a restricted account for Broadcom's benefit in April 2026 and may be required to contribute additional amounts in certain circumstances. It warned that certain payment or performance defaults could make a substantial portion of its lease obligations immediately due while limiting its ability to use the $42 billion financing facility to cover those payments. Broadcom did not comment. Anthropic declined to comment, Reuters reported.

The reciprocal-spending question

Reuters framed the deal as 'a prime example of the reciprocal spending that has animated AI skeptics on Wall Street,' arriving as Anthropic readies an offering that could value it at $2 trillion. Robert Leitao, managing partner of Rothschild and Co., said: '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.'

The structure follows a playbook the industry's biggest winner has already used. The arrangement 'follows what rival Nvidia has done in recent years -- use its strong financial position to help boost chip sales,' Reuters wrote. Jay Goldberg, a Seaport Research analyst, said: 'Nvidia is putting in place a massive amount of its balance sheet, and Broadcom is having to follow suit.'

The hardware at the center is Google's tensor processing unit. Alphabet's Google and Broadcom have collaborated on several generations of the TPUs, and Anthropic announced in April an expanded partnership with Broadcom and Google that will give it access to multiple gigawatts of next-generation TPU compute capacity beginning in 2027.

The scale around the $42 billion

The $42 billion facility sits inside obligations that dwarf it. Anthropic's prospectus shows 2025 revenue of nearly $4.6 billion against an operating loss exceeding $8 billion, with total cloud, compute and infrastructure obligations of $518 billion over the coming years, as we reported when the filing first surfaced on Sept. 29.

Broadcom's own AI ambitions give the financing a second direction of travel. The company projects AI semiconductor revenue of about $115 billion in fiscal 2027 and $230 billion in fiscal 2028, Reuters reported, with Anthropic expected to be its largest compute customer in 2027 as the new capacity comes online. The market's first read was muted: premarket snapshots on Thursday showed Broadcom shares roughly flat to slightly higher, with no sharp move on the news.

That muted tape, if it holds through the close, suggests investors are treating the disclosure as financing plumbing rather than new demand -- a view the conflicts and default clauses written into the filing will test if AI spending keeps accelerating.

What has to happen next

The IPO itself gates everything: no notes are expected to be sold before Anthropic completes the offering, so the facility's real test comes after pricing. Watch for who, if anyone, Broadcom designates as a financing partner, and on what terms the convertible notes are eventually issued.

The capacity ramp is the second milestone. The next-generation TPU capacity starts coming online in 2027, the same year Anthropic is expected to become Broadcom's largest compute customer -- the year the reciprocal structure becomes balance-sheet reality for both sides.

And the scrutiny will not fade. With Wall Street already asking how much AI growth is balance-sheet funded, a $42 billion vendor loan at the heart of the largest AI IPO ever is now a standing exhibit in that debate.