Broadcom to backstop up to $42B for Anthropic infrastructure leases

Broadcom is putting its balance sheet behind Anthropic’s compute ambitions. A post on X reported that the chipmaker will lend up to $42 billion to Anthropic for infrastructure lease agreements.

The mechanics are more creative than a simple loan. Think less “bank hands over a check” and more “co-signer on a very, very large apartment lease.”

How the deal is built

The core financing is a private-credit deal led by Apollo Global Management and Blackstone. The two firms closed a roughly $35 billion package in June 2026, after first shopping it at about $36 billion.

That money buys Google-designed Tensor Processing Units, or TPUs. These are custom chips built for AI workloads, and they get leased to Anthropic.

Broadcom’s role is the backstop. It supports the senior debt tranches, meaning the safest slices of the financing stack that get paid first.

Estimated exposure on those senior tranches runs from $30 billion to $31 billion. Some disclosures cap it at about $29 billion, and reported maximum exposure on the first deal sits around $29 billion to $30 billion.

The important nuance: this is a contingent guarantee, not cash out the door. Broadcom only pays if leases default or if reselling the hardware fails to cover what’s owed.

No payouts had occurred as of filings later in 2026.

The scale is hard to overstate

The initial financing covers more than 1 gigawatt of compute capacity for Anthropic.

The broader platform targets more than 20 gigawatts by 2028. That’s comparable to the output of roughly 20 nuclear plants.

Follow-on talks in August 2026 explored $60 billion or more in additional senior debt. Discussions put the potential expansion at $60 billion to $70 billion, using the same special purpose vehicle, lease and backstop structure.

Those talks weren’t limited to Anthropic. Other AI labs were also part of the conversation.

The arrangement also serves a balance sheet purpose. It keeps a large pile of hardware-related debt off Anthropic’s books as the company pursues a possible initial public offering.

How we got here

In April 2026, Broadcom and Google expanded their commitments, giving Anthropic access to about 3.5 gigawatts of TPU capacity beginning in 2027.

Anthropic’s revenue run rate topped $30 billion by the end of 2026, up from about $9 billion at the end of 2025.

Broadcom works with Google on TPU design, so backstopping the purchase of those chips helps keep demand for its own work flowing.

What this means

For Broadcom, the upside is locked-in demand for the chips it helps build. The risk is concentration: a large contingent liability tied to one customer’s ability to keep paying its leases.

If AI chips depreciate faster than expected, or newer generations make older TPUs less valuable, recovery proceeds could fall short. That’s exactly the scenario where Broadcom’s guarantee kicks in.

For Anthropic, the structure buys speed and flexibility. It gets massive compute without carrying the full debt load on its own balance sheet heading into a potential IPO.

For Apollo and Blackstone, the deal shows private credit pushing deeper into AI infrastructure. With a corporate backstop on the senior tranches, they get exposure to AI growth with a cushion underneath.