Bitcoin mining loves podiums. One number goes up, another goes down, and the ecosystem tells itself a simple story. Except that, in this industry, the way of counting matters almost as much as the machines. And that’s exactly what makes the “Bitdeer moment” interesting. Bitdeer claims to have reached 71 EH/s of total hashrate “under management” at the end of December 2025. On this metric, the company passes MARA, which displays 61.7 EH/s of “Energized Compute” and a fleet efficiency of 19 J/TH. The title of “largest Bitcoin miner” therefore first comes down to… the definition.
In brief
- Bitdeer passes MARA with 71 EH/s and establishes itself as number 1 in “managed hashrate”.
- Except that the counters are not the same: Bitdeer adds auto-mining and hosting, when MARA communicates an “activated” hashrate.
- Bitdeer pushes its SEALMINER chips and accelerates its shift towards AI/HPC.
Bitcoin Mining: A throne built on a definition
Bitdeer doesn’t just say “we mine bitcoin”. Bitdeer says: we manage. In its 71 EH/s, the company adds its self-mining (55.2 EH/s) and hosted machines (rigs operated for others). In its 71 EH/s, it adds self-mining and machines hosted for third parties, operated in its infrastructures. It is a broad, almost “industrial” photograph.
MARA, for her part, puts forward a stricter measure. Its public recall talks about Energized Compute, therefore the hashrate is really energized, connected, active. The figure is clean, readable, and it is accompanied by another signal: the energy efficiency of the fleet. This is another way of explaining Bitcoin mining to the market.
The result is oddly logical. We compare two thermometers that do not take the temperature in the same place. And Bitdeer gains a narrative advantage: imposing its “hashrate under management” indicator in the conversation is already moving the rules of the ranking.
SEALMINER: the silent weapon
Where Bitdeer becomes truly dangerous is not just on one metric. It's about technology. The company is pushing its SEALMINER rangeand announces that the SEAL04-1 chip has shown in verification an efficiency of approximately 6–7 J/TH at the chip level, in low voltage mode, with mass production targeted in Q1 2026.
In other words: Bitdeer wants to control more of its channel. Depend less on the ASIC market, manufacture more, integrate more. It is a strategy that goes beyond “classic” Bitcoin mining. We are no longer just buying machines. We are able to decide on the pace of development of the park.
And the production figures serve as a showcase. Bitdeer declares 636 BTC mined in December 2025, compared to 145 BTC in December 2024. The acceleration is clear. The important detail remains out of scope: how many machines, what generations, what energy cost. But the effect, on the bitcoin narrative, is immediate.
The real match: AI, energy and cash flow
The decor has changed. Bitcoin mining is no longer the only end in itself. Access to energy and “power-ready” buildings are becoming a launchpad for HPC and AI. In this reading, some miners are more willing to sell their production, to finance infrastructure that will survive several cycles.
Faced with this, MARA cultivates a different posture. The company highlights a reserve strategy, with more than 50,000 bitcoin in cash, presented as the result of an HODL approach and structured accumulation. It's a different style: less “factory”, more “war treasure”.
And the market decides without sentimentality. On January 14, 2026, BTDR is around $12.77 and MARA is around $10.95. Bitdeer can win a managed hashrate title, while the real battle is over energy, chips, financial discipline… and the ability to stay up when Bitcoin difficulty accelerates. Meanwhile, the power law model predicts a major test for bitcoin.
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