Anthropic signs $19 billion, 20-year data center lease with Bitcoin miner TeraWulf

Jul 6, 2026

Anthropic PBC has signed a massive 20-year, $19 billion lease with former bitcoin miner TeraWulf Inc. to occupy a 401-megawatt AI data center in Hawesville, Kentucky. The deal highlights a broader industry shift of crypto miners pivoting to steadier AI hosting contracts. To fund wholly owned infrastructure, TeraWulf is also selling its 50.1% stake in a Texas joint venture to Fluidstack Ltd. for up to $530 million. Meanwhile, rumors suggest Anthropic may partner with Samsung to develop custom AI chips.

Anthropic TeraWulf data center lease

▪Following the announcement of the Anthropic PBC lease, TeraWulf Inc. shares rose, closing with a gain of approximately 4% to 4.8% after soaring up to 19% earlier on July 6, 2026.
▪The lease agreement between Anthropic PBC and TeraWulf Inc. is expected to generate approximately $19 billion in contracted revenue over its initial term.
▪Anthropic PBC signed a 20-year lease agreement with TeraWulf Inc. to use a data center in Hawesville, Kentucky.

Hawesville facility construction specifications

▪The TeraWulf Inc. data center leased by Anthropic PBC is being constructed on a 790-acre former aluminum smelting facility in Hawesville, Kentucky.
▪The Hawesville, Kentucky facility will deliver 401 megawatts of critical IT computing capacity, with initial capacity starting in the second half of 2027 and full operations by early 2028.
▪The Hawesville, Kentucky data center will utilize a closed-loop cooling system that recycles a mixture of water and propylene glycol to dissipate heat from graphics cards.

TeraWulf investment returns

▪TeraWulf Inc. plans to invest between $3 billion and $4 billion in the Hawesville, Kentucky data center, representing less than one-fifth of the $19 billion lease value.
▪TeraWulf Inc. reported $34 million in revenue during its last quarter prior to the July 6, 2026 announcement.

Fluidstack Abernathy stake sale

▪TeraWulf Inc. agreed to sell its 50.1% stake in a 168-megawatt Abernathy, Texas data center joint venture to Fluidstack Ltd. for $450 million to $530 million.
▪The sale of the Abernathy, Texas joint venture stake allows TeraWulf Inc. to redeploy capital into wholly owned AI infrastructure opportunities.

Anthropic custom chip development

▪Rumors emerged in July 2026 that Anthropic PBC may partner with Samsung Electronics Co. to manufacture a custom AI inference accelerator chip.
▪Anthropic PBC currently utilizes chips from Nvidia Corp., Advanced Micro Devices Inc., and Google LLC for its workloads.