Bitcoin Mining Difficulty Plummets as Miners Flee to AI

Bitcoin's mining difficulty has seen a significant drop in recent months, with the latest adjustment marking the 15th decrease of 2026. The protocol's self-regulation mechanism, unchanged since Satoshi Nakamoto created the network, recalibrates the target every two weeks to maintain an average block time of ten minutes.

The difficulty adjustment algorithm has been a reliable barometer of the computing power deployed by miners. However, since January 2026, this indicator has shown an almost constant downward pressure. Between January 8 and July 25, the network saw nine decreases for only six increases, with an average gap per adjustment reaching 6.4 percentage points.

The decline in mining difficulty is largely due to Bitcoin's underperformance in the markets, which has compressed miners' margins. Since January 1, the cryptocurrency has lost 26% of its value, causing Hashprice, a measure of daily revenue per petahash, to drop from $37.39 to $32.21 in 206 days.