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Cipher Mining Inks $5.5 Billion, 15-Year AWS Lease in Shift to AI Compute

The pact gives Cipher long-term contracted revenue as it redeploys Texas power assets from bitcoin mining to high‑performance AI data centers.

Overview

  • Cipher will deliver 300 megawatts of capacity to AWS in two phases during 2026 with both air- and liquid-cooled racks, and rent payments begin in August 2026.
  • Alongside the lease, Cipher unveiled the 1‑gigawatt Colchis campus in West Texas, where it expects roughly 95% ownership as AEP builds dual interconnections targeting 2028 pending ERCOT approval.
  • With earlier Fluidstack and Google-backed agreements, total AI hosting commitments now stand near $8.5 billion, supported by a development pipeline of about 3.2 gigawatts.
  • The company reported Q3 2025 revenue of roughly $72 million, a net loss of about $3 million, and adjusted earnings of $41 million, and it completed a $1.3 billion convertible note raise to fund buildouts.
  • Shares jumped roughly 20%–34% to record levels on the news, as investors rewarded a broader industry pivot that also saw IREN announce a $9.7 billion GPU cloud deal with Microsoft.