Cipher Mining Lands $5.5B AWS AI Hosting Deal, Shares Jump 32%

Cipher Mining has secured a 15-year, $5.5 billion AWS AI hosting lease to deliver 300 megawatts of turnkey data centre space and power for AI workloads. The contract, split into two phases from July and August 2026, marks the bitcoin miner’s first direct deal with a Tier 1 hyperscaler and underpins a strategic shift into HPC hosting. In Q3, the company reduced its net loss to $3 million from $46 million a year earlier and reported $41 million in adjusted EBITDA. Following the AWS AI hosting announcement, Cipher Mining’s shares jumped 32%, peaking at $24.80 before settling at $22.76. This latest AWS AI hosting deal builds on a previous $3 billion partnership with Fluidstack and Google, which took a 5.4% stake, and a 95% equity share in the Colchis 1 GW project in West Texas. As bitcoin mining rewards decline after the April 2024 halving, miners like Cipher and IREN—now in a $9.7 billion GPU cloud contract with Microsoft—are diversifying into AI and high-performance computing to stabilise long-term revenue.