Analysis
Anthropic has signed a 20-year lease with TeraWulf, a former crypto-mining company reinvented as an AI data-center operator, valued at $19 billion in contracted revenue over the life of the deal. The lease covers TeraWulf's Justified Data campus in Hawesville, Kentucky, a 401-megawatt facility that will begin limited operations in the second half of 2027 with full completion in 2028.
The structure of the deal is the notable part. According to Anthropic's own disclosure in TeraWulf's SEC filing, the company's payment obligations under the lease are 'expected to be supported by an investment-grade credit' -- a rating Anthropic does not currently hold. In practice, that means a company that has never turned a profit is committing to two decades of lease payments contingent on maintaining a credit profile it will need to earn through future fundraising or revenue growth it hasn't yet achieved.
The timing compounds the risk profile. Anthropic closed a $65 billion round at a $965 billion post-money valuation earlier this year -- one of the largest private financings ever completed -- and confidentially filed for an IPO in early June, with an expected fall debut on Wall Street. Signing a multibillion-dollar, multi-decade lease in the same stretch as a confidential IPO filing suggests the company is racing to lock in compute capacity ahead of a public listing that would give it the balance sheet to actually support these commitments.
“Core Scientific, Cipher Mining and other former miners have struck similar AI-hosting deals over the past two years.”
TeraWulf's own pivot mirrors a broader pattern: former crypto-mining infrastructure operators -- with existing power contracts and data-center real estate -- have become some of the fastest-growing landlords for AI compute, since building new power-connected capacity from scratch now takes years longer than retrofitting existing sites. Core Scientific, Cipher Mining and other former miners have struck similar AI-hosting deals over the past two years.
The comparison to Oracle's $300 billion Stargate commitment with OpenAI is instructive: both structures involve a company that cannot yet self-fund committing to massive infrastructure spend backed by future revenue rather than current cash flow, exactly the pattern the Bank for International Settlements has flagged as carrying systemic financial risk if AI demand growth disappoints.
For infrastructure and credit investors, the Anthropic-TeraWulf lease is a useful signal of how tight compute supply has become: even the best-funded AI lab in the world, fresh off a $965 billion valuation round, is locking in capacity years in advance rather than buying it on-demand as needed.
The bear case: a 20-year lease commitment from a pre-IPO company with no investment-grade rating is a real liability sitting on Anthropic's future balance sheet, and if the IPO prices below expectations or is delayed, the gap between contracted obligations and actual creditworthiness becomes a genuine solvency question rather than a footnote.
What to watch: whether Anthropic's IPO actually prices this fall as expected, whether the company's credit rating catches up to its lease obligations before 2027 operations begin, and whether other frontier labs sign similarly structured leases with former crypto-mining operators as compute scarcity persists.
