Broadcom has agreed to lend Anthropic up to $42 billion to finance infrastructure spending, according to Anthropic’s IPO prospectus, in an arrangement disclosed October 1. The relationship spans compute supply, equipment leasing and financing, giving the semiconductor company a central role in Anthropic’s infrastructure buildout that differentiates it from cloud-oriented partners such as Amazon. In turn, Anthropic stands to become the largest customer in Broadcom’s chip-design business next year, as the lab readies a public offering that could value it at $2 trillion.
The financing mechanics are intricate. Broadcom may designate a financing partner, and the debt instruments could convert into Anthropic shares; Anthropic said it does not expect any notes to be sold before the IPO closes. The convertible notes could finance roughly a third of a $125.2 billion commitment Anthropic has made for a five-year lease of tensor processing unit computing capacity. The TPUs are co-developed by Google and Broadcom, and Anthropic announced an expanded partnership with both companies in April for multiple gigawatts of next-generation TPU capacity beginning in 2027.
Anthropic flagged the entanglement as a risk. Its prospectus discloses “potential conflicts of interest” from Broadcom’s dual role as hardware supplier and financing partner, warning that Broadcom’s pricing and hardware decisions could affect Anthropic’s ability to procure computing infrastructure. The lab deposited cash into a restricted account for Broadcom’s benefit in April 2026 and warned that certain payment or performance defaults could make a substantial portion of its lease obligations immediately due while limiting its use of the $42 billion facility.
The strategic logic runs both ways. Broadcom projects AI semiconductor revenue of about $115 billion in fiscal 2027 and $230 billion in fiscal 2028, figures that depend heavily on Anthropic absorbing capacity. Seaport Research analyst Jay Goldberg noted that Nvidia has used its balance sheet to support chip sales for years and that Broadcom is following suit. Bloomberg reported separately that Broadcom has begun amassing $60 billion to fund chips for Anthropic, suggesting the financing commitment is already being operationalized. Rothschild’s Robert Leitao captured Wall Street’s unease: the structure concentrates an enormous bet on two companies generating enough revenue to support all the financing.