Cipher Mining Strikes $3B AI Hosting Pact with Google-Backed Fluidstack

Cipher Mining, one of the largest publicly traded Bitcoin mining companies in the United States, has secured a decade-long artificial intelligence hosting contract valued at $3 billion with Fluidstack, a UK-based AI cloud infrastructure provider. The deal, backed by Google, marks a dramatic pivot for Cipher from its roots in cryptocurrency mining toward the booming high-performance computing market.

As part of the agreement, Cipher will dedicate 168 megawatts of computing power from its Barber Lake facility in Colorado City, Texas, to Fluidstack. The site, which currently supports 244 MW of gross capacity, has room to expand to 500 MW across its 587-acre footprint. Should the contract be extended through two additional five-year renewals, the total revenue could climb as high as $7 billion.

Google’s involvement is both financial and strategic. The tech giant has guaranteed $1.4 billion of Fluidstack’s obligations under the contract in exchange for warrants that give it a 5.4 percent equity stake in Cipher, equal to roughly 24 million shares. Importantly, Cipher retains full ownership of the Barber Lake site, even as it deepens its ties with one of the world’s largest technology companies.

To support the scale of its commitments, Cipher also announced plans for an $800 million private offering of zero-coupon convertible senior notes due in 2031, with an option to increase the issuance by an additional $120 million. The proceeds are earmarked for the continued development of Barber Lake, advancement of a 2.4-gigawatt project pipeline, and expansion into other high-performance data center ventures. The guaranteed revenue stream from the Fluidstack contract is expected to enhance Cipher’s ability to raise additional debt as it pivots toward AI-driven infrastructure.

Cipher chief executive Tyler Page called the partnership a pivotal moment in the company’s transformation. He stressed that facilities originally designed for Bitcoin mining are increasingly being adapted for artificial intelligence workloads, where demand for computing power is surging. “We believe this transaction represents the first of several in the HPC space as we continue to scale our capabilities,” Page said.

The move reflects a broader shift within the mining sector. Other firms, such as Hive Digital and CleanSpark, have also begun retooling their operations to host GPUs and support AI applications, underscoring the growing convergence of crypto mining infrastructure and artificial intelligence services.

Market reaction to the announcement was muted, though Cipher’s stock has already more than tripled in 2025, buoyed by investor confidence in its AI strategy. Alphabet, Google’s parent company, has seen its own shares climb nearly 30 percent this year and over 70 percent since April, gains that analysts attribute to the firm’s aggressive AI initiatives, steady rollout of new products, and a favorable legal outcome that eased regulatory scrutiny. With a market capitalization approaching $3 trillion, Alphabet now ranks just behind Nvidia, Microsoft, and Apple.

For Google, the Cipher deal follows a nearly identical agreement with TeraWulf in August, where the company acquired a 14 percent stake. These partnerships allow Google to secure vital computing capacity through Fluidstack while avoiding the costs of constructing new data centers, deepening its foothold in the infrastructure layer of the AI economy.