Anthropic just locked in two decades of dedicated compute capacity — and in the process turned a Bitcoin mining company into an AI infrastructure story. The Claude-maker signed a 20-year lease for TeraWulf's Justified Data Campus in Hawesville, Kentucky, roughly an hour southwest of Louisville.
The facility will handle 401 megawatts of critical IT load. The total lease value comes to approximately $19 billion over the 20-year term. First power delivery is expected in the second half of 2027, with the full 401 MW online by early 2028.
For TeraWulf, this is the deal that completes its strategic pivot. The company built its name in Bitcoin mining, then started repositioning toward AI data centers. CEO Paul Prager called the Anthropic partnership a validation of that strategy — one that establishes a long-duration revenue stream with one of the world's leading AI companies. On the same day, TeraWulf sold its 50.1% stake in a 168 MW campus in Abernathy, Texas, to a Fluidstack-led investor group for about $450 million. Shares surged more than 16% in premarket trading.
The broader pattern is worth watching. Bitcoin mining margins have been compressed all year as post-halving economics bite. AI compute demand, by contrast, is growing and largely predictable — the opposite risk profile. TeraWulf is the second major mining operator to land a large AI contract this year, which suggests a structural shift rather than a one-off. Anthropic's approach mirrors its ambitions: first a strategic deal with Amazon, now a 20-year anchor in Kentucky.
Anthropic gets long-term capacity without the capital and execution risk of building from scratch. TeraWulf converts volatile hash-rate economics into $19 billion of contracted cash flow. The real question now: how many of the remaining miners sign deals like this before the AI infrastructure race is decided?
