Wall Street lines up $63B to put Broadcom chips in Anthropic's hands — without Anthropic buying them

• Who: Bank of America, Blackstone, Citi and Morgan Stanley — the lead financial partners — financing Broadcom technology for Anthropic, the maker of Claude.
• What: A $63 billion transaction executed through a newly formed special-purpose vehicle (SPV) that buys Broadcom XPU AI accelerators and networking solutions and leases them to Anthropic.
• When: Announced October 26, 2026, as part of a previously announced strategic compute capacity agreement between Broadcom and Anthropic, with expected deliveries starting in calendar 2027.
• Structure: Bank of America, Citi and Morgan Stanley arrange the first-lien financing; Blackstone is the sole provider of the committed second-lien portion. Reuters, citing two sources, puts the first-lien slice at about $43.5 billion; the official announcement does not disclose the split.
• Backstop: Broadcom provides residual-value support to the SPV for an amount equivalent to the first-lien portion — effectively absorbing declines in the hardware’s value up to that amount.
• Context: The deal lands the same day Anthropic filed for a public offering, and follows a prior $35 billion Anthropic compute-expansion financing involving Apollo and Blackstone.

Bank of America, Blackstone, Citi and Morgan Stanley will finance $63 billion of AI compute for Anthropic. Announced on October 26, 2026, the deal buys Broadcom’s AI accelerators and networking equipment through a newly formed special-purpose vehicle and leases it to the Claude maker, with deliveries expected to start in calendar 2027. It is one of the largest debt deals yet tied to the AI buildout — and a sign of how the industry now pays for compute: not by buying chips, but by financing them like infrastructure.

The structure is the story. The special-purpose vehicle, funded with committed financing from the four lead partners, purchases Broadcom XPU accelerators and networking solutions, then leases them to Anthropic. Bank of America, Citi and Morgan Stanley arrange the first-lien financing; Blackstone is the sole provider of the committed second-lien portion. Broadcom itself provides residual-value support to the vehicle for an amount equivalent to the first-lien portion — a guarantee that absorbs declines in the value of the hardware up to that amount. Reuters, citing two people familiar with the matter, puts the first-lien slice at about $43.5 billion, or roughly 69% of the total; the companies’ announcement does not disclose the breakdown.

Why Broadcom is guaranteeing its own chips

Residual-value support is the hinge the whole deal hangs on. Lenders are being asked to fund tens of billions of dollars of hardware whose value could fall fast if a newer chip generation arrives or demand cools. By backstopping the senior debt, Broadcom tells lenders their downside is capped — and in exchange, Anthropic gets capacity it could not easily fund on its own balance sheet, on a schedule tied to a previously announced strategic compute capacity agreement with Broadcom. Blackstone president Jon Gray framed it plainly: “The rapidly growing demand for AI is creating an enormous opportunity to finance compute capacity at scale.”

The pattern: compute as financed infrastructure

This is not a one-off. Reuters notes that Apollo and Blackstone had previously agreed to finance a $35 billion expansion of Anthropic’s AI computing capacity under a prior agreement with Broadcom. The $63 billion structure extends that playbook to a much larger scale, with banks joining alternative asset managers as the funders of AI infrastructure. The model — a vehicle owns the hardware, a lab leases it, the chipmaker guarantees the residual — lets each party carry the risk it understands best: banks hold senior debt, Blackstone holds the junior slice, Broadcom holds the technology risk, and Anthropic holds the operating risk of actually using the capacity.

What to watch

Three things will tell whether this structure holds up. First, delivery: the gear is not expected to start arriving until 2027, so the financing is a bet on demand that far out. Second, the undisclosed split: if the first-lien portion is indeed about $43.5 billion, Broadcom’s guarantee covers most of the deal, and the quality of that guarantee matters more than the headline number. Third, the timing: the announcement came the same day Anthropic filed for a public offering, meaning the company is simultaneously raising equity from public markets and locking in debt-funded compute — a dual track that only works if investors keep believing demand for Claude keeps growing. Morgan Stanley co-president Dan Simkowitz called the deal “an important milestone in enabling the next buildout of AI compute capacity.” The milestone is real; whether the capacity earns its keep is the 2027 question.

Sources: Blackstone announcement (joint statement), Reuters.