Bitcoin mining difficulty shrinks 14% from this year's high as plunging revenues force operators to pivot

Bitcoin mining difficulty has decreased to 126.23 trillion as of August 2026, marking a roughly 14% drop from this year’s peak of 155.97 trillion in November 2025, and falling about 1.1% below the level seen a year earlier. This marks only the second time in Bitcoin’s history that mining difficulty has declined below its year-earlier value. Mining difficulty adjusts approximately every two weeks, or every 2,016 blocks, to maintain an average block time of 10 minutes. A decline in difficulty indicates that there is less computing power competing on the Bitcoin network.

The decline in difficulty this time is largely attributed to weaknesses in mining economics rather than external crackdowns, which had previously caused such decreases, such as China’s 2021 mining ban. Factors cited include falling bitcoin prices, lower mining revenues, and a shift in capital and resources towards artificial intelligence and high-performance computing infrastructure. Additionally, curtailments in power availability in Texas and other mining regions disrupted mining operations, further reducing capacity.

Despite the difficulty adjustment potentially easing operational challenges for miners, expected mining revenues remain low. Hashprice, a measure of miner revenue per unit of computational power, dropped to $27.66 per petahash per day in late June—nearly matching its February low—but has since modestly increased to about $31.7. Forward market prices from Luxor indicate that the average hashprice is expected to remain near $31.85 per petahash per day through the end of 2026, suggesting that miners anticipate limited revenue recovery for the remainder of the year.

This development underscores how shifts in external economic and technological conditions, such as AI investment trends and power disruptions, impact the Bitcoin network’s mining landscape. The reduction in mining difficulty reflects decreased competition among miners but also highlights ongoing challenges in sustaining profitable mining operations under current market conditions.