Anthropic Shifts AI Infrastructure Costs to Investors Through $68.3B Data Center Partnership

Anthropic's new data centres. Someone else pays for them.

Anthropic is getting a fleet of data centres built to its own specification in the United States. It will not own them, will not build them, and will not fund them. It will pay rent. Anthropic, Macquarie Asset Management and Singapore's GIC announced a partnership on Monday to develop data centres dedicated to Anthropic alone. The platform has a name, Theseus Infrastructure. It will develop, operate and lease the facilities to Anthropic under long-term contracts, and the partners will tailor each site to Anthropic's compute needs. The ownership line is the one to read twice. Macquarie Asset Management funds and GIC will jointly own Theseus and supply the majority of the equity for each project. Anthropic is the anchor tenant. The release names no figures. No capital commitment, no gigawatts, no sites, no timeline. Bloomberg, which reported the venture, said the companies shared no details on planned spending or the size of the projects. The release quotes nobody either. Not one executive from any of the three parties appears in it. Rent instead of capital This is a financing structure before it is a building programme. A dedicated AI campus swallows equity for years before a single rack earns anything. Theseus hands that problem to investors who specialise in contracted infrastructure cash flows. Anthropic pays through rent rather than capital expenditure, and keeps the capacity. The pattern is hardening across the sector. Meta shifted $279bn of data centre leases off its balance sheet. Google now guarantees $44bn of rent on buildings it will never own, and Anthropic already leases TPU capacity inside that arrangement. Bloomberg reports that Anthropic also took a $35bn loan to lease chips at five data centres, with Google standing behind it. The timing sharpens the point. Anthropic is preparing a public listing. A company heading for public markets books rent as an operating expense and leaves construction risk with somebody else. In 2025 Anthropic said it would spend $50bn on custom US data centres, including sites in Texas and New York. Theseus points the other way. The clause about your electricity bill One sentence in the release carries more weight than the rest. Anthropic has committed to cover the electricity price increases that communities near these sites might otherwise face. That echoes a pledge Anthropic published in February. It promised then to pay for 100% of the grid upgrades needed to connect its data centres, to bring net-new generation online to match their demand, to curtail power use at peak, and to cool with less water. The document also carried a caveat. Where Anthropic leases capacity from existing data centres, it said only that it was "exploring further ways to address our own workloads' effects on prices." Theseus sits between the two categories. The sites are leases, but purpose-built ones. On Monday's wording, the stronger commitment now travels with them. What the release does not name is an auditor. No third party verifies the calculation, no regulator signs it off, and the promise covers price rises from these sites rather than the aggregate strain a build-out puts on a grid. Seven companies signed the White House Ratepayer Protection Pledge in March, and those commitments stayed voluntary too. Anthropic was not among the seven. The seller becomes the builder Macquarie's side of this has an odd rhythm. It owned Aligned Data Centers from 2018 and grew it from two facilities and 85MW into a hyperscale operator. Then it closed the $40bn sale to the AI Infrastructure Partnership, MGX and BlackRock's Global Infrastructure Partners on 20 July. Three weeks later it announced a new platform. Macquarie Asset Management managed $497.6bn as at 31 March. GIC raises a separate question. It invests Singapore's foreign reserves, employs more than 2,500 people across 11 financial centres and holds assets in over 40 countries. Sovereign capital now underwrites American AI compute, and that argument has not run its course. Anthropic itself accepts that action by one company is not enough. Everything else about Theseus remains unquantified: the money, the megawatts, the locations, and the "thousands" of construction and permanent jobs. The first useful test is where the first site lands, and what the local utility says when it gets there.

Anthropic Partners With Global Investors to Expand Data Center Footprint

Anthropic has established a partnership with two international investment firms to develop and lease more data centers to fuel its rapidly expanding artificial intelligence development. The AI company said Monday it will work with the Australian company Macquarie Asset Management and the Singapore-based investment firm GIC. The companies will focus on finding data center sites in the U.S., with a goal of finding new facilities where Anthropic can be an anchor tenant. Funds managed by Macquarie and GIC will pay for the majority of the equity for each project. The planned developments will require significant capital investment and are expected to create thousands of construction and permanent operational jobs. Anthropic will pay for electricity price increases that consumers might face from these sites being built, the company said. The deal comes as demand for Anthropic's Claude models is increasing, and Anthropic is racing to keep up with other AI developers such as OpenAI and Alphabet unit Google. Data centers are necessary to train and operate the AI models, and tech companies are spending more on expanding their capacities. The Commerce Department said data center construction outlays in June were $68.3 billion at an annual rate, up $21.5 billion a year earlier.