Clore.ai's B300 contract carries a 720-day minimum term and no shorter tier exists, so putting capacity behind it means committing the hardware, the rack space and the power line for two years. The cards draw 1,400 W each, which is 11.2 kW of silicon in an eight-GPU chassis, the heaviest on the platform. Clore quotes customers $5.02 per GPU-hour in the EU and $5.16 in the USA and Japan, flat from 720 days to 1,800. No B300 was listed on the per-minute marketplace on 21 Sep 2026.
Every other part on this platform can be committed for a month. This one cannot, which turns a hosting decision into a financing one and moves the interesting questions off the spec sheet.
A 720-day contract speaks for the chassis, the rack position and the power line until 2028 if you sign it today. Across that term one chassis draws roughly 193,500 kilowatt-hours in cards alone. Your depreciation schedule, your energy contract and your view of how long Blackwell Ultra stays competitive all have to reach the same horizon, because you are committing to all three at once.
On every other card Clore offers, a longer commitment buys a lower price. On this one the configurator returns the same rate at 720, 1,080, 1,440 and 1,800 days. Whatever a longer B300 term is worth, it is not a discount, and that is unusual enough to be worth knowing before you negotiate.
1,400 W a card is 11.2 kW of silicon in one enclosure, forty percent more than a B200 chassis and exactly twice a Hopper one, before the host platform draws anything. If your hall was designed around Hopper density, a B300 chassis is two of those racks' worth of heat in one.
Clore applies an extra hoster fee to your earnings when a renter pays in Bitcoin, USDT or USDC, and none at all when they pay in CLORE. On a short listing that difference is a rounding error. Across a two-year commitment it is the largest controllable line in your fee stack, and MFP Lock is the documented way to remove it: Tier 1 takes off 30 percent of that fee, Tier 2 another 30 percent, Tier 3 the remaining 40.
Orders settled in CLORE carry no extra hoster fee to begin with. Nothing to lock, nothing to claim, nothing to reduce.
Locked against the server's Maximum Fair Price at the documented base rule of 1,000 CLORE per MFP point. Rewards begin 24 hours after the lock.
Marketplace fee percentages and the extra hoster fee are both published on Clore's host fees page. Over a long term the second one matters more, which is the opposite of how most pages present them.
Totals of 2.5% and 10%, split evenly with the renter. Proof of Holding halves your side at 2,000,000 CLORE held, taking those figures to 0.625% and 2.5%.
Applied to your earnings when a renter pays in BTC, USDT or USDC, and not at all when they pay in CLORE. MFP Lock removes it across three tiers. It is several times the size of the marketplace fee.
// Two mechanisms, two remedies: hold CLORE for the marketplace fee, lock it for the extra fee. Read the fee documentation →
Clore.ai publishes no monthly earnings figure for a B300 and this page will not estimate one: with zero listed servers on 21 Sep 2026 there is no price history and no utilization record to build one from. The cost side, however, is fully determined.
720 days at 24 hours. That is the window every other figure in your model has to be spread across, on both the revenue and the cost side.
Per chassis, across the full term at continuous draw, cards only. At ten cents a kilowatt-hour that is roughly $19,400; at thirty cents, roughly $58,100. Cooling overhead sits on top.
What the hardware is worth in month twenty-four. Over a two-year horizon that assumption moves the model more than any fee band does, and nobody else can supply it for you.
// Contract rates on this page are customer-facing quotes, not host payouts. Host onboarding guide →
The technical onboarding is a single installer command on a machine that already boots. Everything difficult about a B300 happens before you reach it.
17,280 hours per GPU, roughly 193,500 kWh of card draw per chassis, and a residual value you have to assume. Do this before the hardware conversation, not after it.
Plus the host platform and the cooling overhead. This is twice a Hopper chassis in the same footprint, so a hall designed around the previous generation needs checking rather than assuming.
A working NVIDIA driver is a precondition in the documentation. Then one command from Clore's public installer repository with your init token appended, on Ubuntu 22.04 or newer, or on a HiveOS rig.
Set spot and on-demand rates yourself on the marketplace side. Earnings credit per rented minute and withdraw in BTC, USDT, USDC or CLORE.
It means the hardware, the rack position and the power line are spoken for until 2028 on a contract signed today. There is no 30-day, 90-day or 360-day B300 tier to fall back to: 720 days is the floor, and the configurator offers 1,080, 1,440 and 1,800 above it. On the cost side, one chassis is 11.2 kW of cards held for 17,280 hours. So the question is not whether the rate looks attractive this quarter. It is whether your depreciation schedule, your energy contract and your view of how long Blackwell Ultra stays competitive all reach the same horizon.
About 193,500 kilowatt-hours of card draw per chassis. Eight cards at NVIDIA's 1,400 W board power is 11.2 kW, held for 17,280 hours. At ten cents a kilowatt-hour that is roughly $19,400 per chassis in card electricity alone; at thirty cents, roughly $58,100. Neither figure includes the host platform, the fans or your cooling overhead, all of which sit on top of it. It is also why a two-year term is a financing exercise rather than a listing decision: the energy bill arrives every month whether or not the machine is earning.
That is an assumption you have to make, and this page will not make it for you. What is published: the B300 is the largest-capacity part Clore contracts at 288 GB a card, NVIDIA's HGX B300 platform carries 2.1 TB across eight GPUs, and on dense FP4 throughput, the axis where Blackwell Ultra improves, it is half again as fast per system as HGX B200. Also published, on the same NVIDIA table: INT8 and FP64 throughput fall sharply against B200. So the part is specialised rather than uniformly better, and whether a specialised part holds value through two generations of competition is a judgement, not a fact.
Nothing this page can tell you, and that is the correct answer rather than an evasion. Clore's public documentation covers marketplace fees, the MFP Lock mechanism and how to install the hosting agent. It does not publish the terms of a bare-metal supply agreement, and a two-year commitment is precisely the situation where you read the document rather than a landing page. What is published and reliable: the fee split, the Proof of Holding reduction ladder, the 15% extra hoster fee on non-CLORE payments, and the customer-facing rate card. Term length, uptime obligations, remedies and exit belong in the contract, so ask for it before you commit hardware.
Not for a B300. The bare-metal configurator offers 720 days and longer for this part and nothing below, and the per-minute marketplace held zero B300 servers on 21 September 2026. If you want Blackwell capacity on a shorter commitment, the B200 contract starts at 30 days; if Hopper will do, the H100 and H200 contracts both start there too. All of them are still 8-GPU minimums, so the shorter route changes the term rather than the unit.
Because on this part the term is not buying a discount. Clore's configurator returns the same figure at 720, 1,080, 1,440 and 1,800 days: $5.02 per GPU-hour in the EU and $5.16 in the USA and Japan. Every other card behaves the usual way, with a B200 falling about 30 percent between its 30-day and 360-day tiers, an H200 about a third and an H100 about 31 percent, each measured on that card's highest-priced entry. What a longer B300 term buys is certainty of supply on both sides of the agreement, which is worth understanding before you go into a negotiation expecting a volume curve.
None of these depend on demand, on utilization or on anything Clore.ai could forecast. They follow from the term and from NVIDIA's board power.
The window your whole model spreads across. Two years is longer than most GPU generations have lasted as the current one.
All documentation →Roughly $19,400 at ten cents a kilowatt-hour, roughly $58,100 at thirty. Before cooling overhead, and before the host platform.
Fee documentation →Unique among the parts Clore contracts. Everywhere else the ladder rewards a longer term; here it only extends the certainty.
Host onboarding →Reduction percentages and tier multipliers are as Clore's MFP Lock documentation states them. The lock sizes are those multipliers applied to the documented base rule of 1,000 CLORE per MFP point.
The extra hoster fee only exists on orders paid in BTC, USDT or USDC, so none of this applies to CLORE-settled rentals. Rewards begin 24 hours after a lock is placed, and the MFP Lock documentation is authoritative where this table and it disagree.
These pages carry the published half: fees, locking and installation. The term sheet is a separate document and you should have it in hand before a two-year commitment.
The rental page works through the same term from the customer's side, with the 288 GB argument and NVIDIA's own HGX numbers.
There is no shorter B300 tier to ease into. Run the arithmetic, confirm the power, ask for the contract, and open a host account when all three line up.