Bitfarms’ Exit & The $400/MW Arbitrage Draining Bitcoin’s Security
With AI revenue hitting $400/MW versus mining’s $100, Bitfarms and Hut 8 are leading a structural exodus that could permanently alter Bitcoin’s security model.
The “Wind Down” Is Real
The signal is no longer subtle. In a filing last November, Bitfarms confirmed it would “wind down” its Bitcoin mining operations through 2026 to pivot entirely to High-Performance Computing (HPC). This isn’t diversification; it’s an exodus. And they aren’t alone.
According to a new CoinShares outlook released this month, Bitcoin mining revenue for pivoted firms is projected to collapse from 85% of their total intake to under 20% by late 2026. The driver is a ruthless arbitrage: mining Bitcoin yields roughly $100 per megawatt (MW). Hosting AI workloads generates $300,$400.
Selling Coins to Buy Shovels
For publicly traded miners, the math has become undeniable. While Bitcoin struggles to hold $82,000 amid post-ETF volatility, AI infrastructure offers fixed, long-term contracts with investment-grade counterparties. The market is rewarding the defectors. Hut 8 (HUT) shares surged earlier this month after securing a $7 billion partnership with a Google-backed infrastructure provider, effectively de-risking their entire business model.
Conversely, pure-play miners are being punished by rising difficulty and thinning margins. The hashrate recently touched 1 Zetahash, a milestone that paradoxically squeezes profitability further. As Core Scientific and IREN allocate gigawatts to AI, the “security budget” of the Bitcoin network is effectively being auctioned off to the highest bidder. And right now, that bidder is OpenAI, not Satoshi.
The Security Implication
This structural shift poses a long-term threat to Bitcoin’s settlement assurance. If gigawatts of power capacity permanently exit the SHA-256 hashing algorithm for AI inference, the network’s cost-to-attack could theoretically stagnate even as the asset’s value grows. 2026 is shaping up to be the year miners stop being “miners” and start being power brokers. The hardware is changing, the customers are changing, and for the first time, the most profitable use of a Bitcoin mine is to stop mining Bitcoin.
