$CIFR vs $IREN: Bitcoin Miners Shifting Focus to AI Infrastructure Both CIFR and IREN began as Bitcoin miners and are now pivoting toward artificial intelligence (AI) and high-performance computing (HPC) infrastructure. CIFR (Cipher Digital) has leaned into hyperscale data center hosting, with contracted revenue now exceeding $9 billion at its Barber Lake site alone. IREN (IREN Limited) has shifted decisively toward AI cloud services, anchored by a five-year, $9.7 billion agreement with Microsoft.