How much does it cost to build a quantum computer in 2026?
There is no single build cost because "build a quantum computer" covers everything from a $5,000 desktop teaching unit you actually buy, to a roughly $2.85 million lab system you assemble from a QPU module and cryogenics, to a multi-billion-dollar corporate programme to develop new hardware. The one thing all three share: nobody hand-builds a useful quantum computer cheaply. The processor needs a dilution refrigerator near absolute zero (or an ultra-high-vacuum ion trap), and that infrastructure, not the chip, dominates the cost.
If you only want to run circuits, you do not need to build anything: a 10,000-shot job on AWS Braket's Rigetti Cepheus costs about $4.55, and IBM's Open Plan is free for up to 10 minutes of QPU time per month. Buying prices are sourced row by row in the full price list; cloud rates verified 7 September 2026.
"How much does it cost to build a quantum computer?" has no single answer because the word build spans three very different projects: buying and running a desktop teaching machine, assembling a research-grade node in a lab, and funding a company-scale R&D programme to develop new hardware. This page separates the three, anchors the lab-build cost to verified figures (the published gap between a bare QPU module and a complete turnkey system), marks quote-only components honestly, and points to the far cheaper alternative of renting cloud access. For buying a finished machine see the quantum computer price list; for the bare processor see the quantum CPU price.
1.Three things "build" can mean
Before pricing anything, separate the three questions hiding inside "build a quantum computer". They are four orders of magnitude apart. The table shows the cost ladder from a teaching unit you buy, through a lab system you assemble, to a corporate programme that develops entirely new hardware.
Table 1 — What building a quantum computer costs, by what "build" means (2026)
| What "build" means | What it takes | Cost | Status |
|---|---|---|---|
| Assemble a teaching machine In practice you buy, not build: a room-temperature SpinQ NMR desktop unit (2-3 qubits). Self-building an NMR rig from parts is not a realistic route. | Off-the-shelf buy | ~$5,000 | industry reported |
| Build a research-grade node (in a lab) Start from a superconducting QPU module and add a dilution refrigerator, control electronics, wiring and a shielded facility. Rigetti's Novera bare QPU module (9 qubits) launched at about $900,000 in 2023. | Assembly / integration | ~$900,000 (bare module) | industry reported |
| Build a complete turnkey system A complete, integrated Rigetti Novera system (module plus cryogenics, control electronics and delivery) is buyer-confirmed at about $2.85M each, from Rigetti's September 2025 purchase orders for two systems totalling ~$5.7M. | Assembly / integration | ~$2,850,000 / system | verified primary |
| Buy a full commercial machine outright A complete on-premise D-Wave Advantage2 annealer (4,400+ qubits). Florida Atlantic University signed a $20M agreement to purchase and install one in 2026. | Turnkey purchase | $20,000,000 | verified primary |
| Develop a new quantum computer (R&D programme) Designing and fabricating your own hardware is not a purchase but a multi-year programme spanning R&D, fabrication, manufacturing and staff. IBM committed more than $10 billion over five years in June 2026. | R&D programme | >$10,000,000,000 (5-year programme) | verified primary |
Cost is per machine except the last row, which is IBM's five-year programme commitment. The bare-module figure is the 2023 Novera launch price (no longer published); the turnkey-system figure is buyer-confirmed from Rigetti's 30 September 2025 purchase orders; the D-Wave figure is Florida Atlantic University's January 2026 agreement; the IBM programme figure is IBM's 2 June 2026 announcement. Figures exclude ongoing facilities, helium and staff.
2.Building a research-grade machine: the component stack
The realistic way to "build" a research-scale quantum computer is not to fabricate a processor from silicon, which only a handful of companies and national labs can do, but to buy a QPU module and integrate it with the cryogenics and electronics it needs. The stack is roughly:
- The QPU module. Rigetti's Novera, the first commercially available superconducting QPU, launched its bare 9-qubit module at about $900,000 in 2023. That figure is no longer published, so it is industry-reported, not a current quote.
- The dilution refrigerator. Superconducting qubits must sit a few thousandths of a degree above absolute zero. Bluefors and Oxford Instruments are the two main suppliers, and both are quote-only, no public list price. Secondary estimates span a wide range with cooling power, so treat any single number as indicative.
- Control and readout electronics (microwave sources, arbitrary-waveform generators, amplifiers) from vendors such as Quantum Machines, Zurich Instruments or QBlox, also quote-only.
- The facility: RF shielding, vibration isolation, a helium supply and power. This is a building cost, not a catalogue item.
Rather than invent a price for each quote-only component, the honest anchor is the site's own verified pair of figures. Rigetti sells the bare Novera module (industry-reported at about $900,000) and a complete, integrated Novera system(buyer-confirmed at about $2.85 million each). The difference, roughly $2 million, is what the dilution refrigerator, control electronics, wiring, integration and delivery cost when someone assembles them into a working machine. That is a model built from two published numbers, not a guess at any single vendor's undisclosed price.
3.Developing new hardware: a programme, not a purchase
Designing and fabricating a genuinely new quantum computer, a new chip architecture, its fabrication process and its full control stack, is not something you cost as a shopping list. It is a multi-year R&D programme. IBM announced on 2 June 2026 that it would commit more than $10 billion over five years to quantum computing, spanning research, manufacturing, acquisitions and ecosystem development. Google, Amazon and Microsoft each run their own multi-year programmes, and national efforts add more: in 2026 the US Department of Commerce moved to award roughly $2 billion in grants across American quantum firms (widely reported; not every individual award is public). If your question is "what would it cost my company to build its own quantum computer from a new design?", the answer is measured in hundreds of millions to billions and years, which is exactly why almost everyone buys or rents instead.
4.The cheaper answer for almost everyone: don't build, rent
For all but a handful of organisations that need dedicated, always-on hardware, building or buying makes no economic sense next to cloud access. IBM's Open Plan gives up to 10 minutes of QPU runtime per month for free; a 10,000-shot circuit on AWS Braket's Rigetti Cepheus costs about $4.55; IBM Pay-As-You-Go is $96 per QPU-minute beyond the free tier. In other words, running real 100-plus-qubit hardware for a small project costs a few dollars, against six-to-eight figures to own a machine and the cryogenics, facilities and staff to keep it cold. Estimate a specific job with the cost calculator, or see every provider's rate in the price list.
5.Frequently asked questions
How much does it cost to build a quantum computer?
It depends entirely on what you mean by build. If you want a bench-top teaching machine you buy one, not build it: a SpinQ NMR desktop unit is about $5,000. If you want to build a research-grade superconducting node in a lab, you start from a QPU module (Rigetti's Novera bare module launched at about $900,000 in 2023) and add a dilution refrigerator, control electronics and a shielded facility; a complete, integrated Novera system is buyer-confirmed at about $2.85 million each, so the cryogenics-plus-integration build-up on top of the bare chip is roughly $2 million. And if you mean develop a new quantum computer as a company, that is an R&D programme measured in billions: IBM alone committed more than $10 billion over five years in June 2026.
How much does it cost to build a quantum computer from scratch?
From scratch, at research scale, the cheapest realistic path is to buy a QPU module and integrate it rather than fabricate a chip yourself. Rigetti's Novera bare module (9 superconducting qubits) launched at about $900,000 in 2023; on top of that you need a dilution refrigerator to cool it to near absolute zero, control and readout electronics, cabling and a vibration- and RF-shielded room. Those components are quote-only, but the site's own verified figures bracket the total: a complete turnkey Novera system runs about $2.85 million, so the integration layer above the bare module is roughly $2 million. Fabricating your own processor design from nothing is a different question entirely: that is a company-scale R&D programme, not a shopping list.
Can you build your own quantum computer at home?
Not a useful one. The only quantum computer you can put on a desk is a SpinQ room-temperature NMR unit (2-3 qubits, from about $5,000), and that is a finished product you buy rather than assemble. Anything with enough qubits to be interesting uses superconducting or trapped-ion hardware that must sit inside a dilution refrigerator near absolute zero or an ultra-high-vacuum ion trap with laser control, neither of which is a home build. Hobbyists build simulators that run quantum circuits in software on an ordinary PC, but a simulator is not quantum hardware. To run real hardware, renting cloud access is the practical route: IBM's Open Plan is free for up to 10 minutes of QPU time per month.
How much does a dilution refrigerator cost?
Dilution refrigerators, which cool superconducting qubits to a few thousandths of a degree above absolute zero, are quote-only: the two main suppliers, Bluefors and Oxford Instruments, publish no list price. Secondary coverage reports a wide range depending on cooling power and qubit capacity, and should be treated as indicative rather than a quote. The honest anchor for the cryogenics-plus-integration cost is the published gap between a bare Rigetti Novera QPU module (about $900,000 in 2023) and a complete, integrated Novera system (about $2.85 million), which is roughly $2 million for the fridge, control electronics, wiring and integration together.
How much did IBM and Google spend to build their quantum computers?
These are company R&D programmes, not per-machine bills. IBM announced in June 2026 that it would commit more than $10 billion over five years to quantum computing, spanning research, manufacturing, acquisitions and ecosystem work. Google, Amazon and Microsoft each run multi-year quantum programmes of their own funded in the hundreds of millions to billions. National programmes add more: in 2026 the US Department of Commerce moved to award roughly $2 billion in grants across American quantum firms (widely reported; the individual awards are not all public). The takeaway is that developing new quantum hardware is a programme-level investment, distinct from the six- and seven-figure cost of buying or assembling a single existing machine.
Is it cheaper to build a quantum computer or rent cloud access?
Renting is dramatically cheaper for almost everyone. Building or buying a single research-grade machine is a six-to-eight-figure capital cost before you add the cryogenic infrastructure, facilities and specialist staff to keep it running. Running a real circuit on the same class of hardware over the cloud is a few dollars: a 10,000-shot circuit on AWS Braket's Rigetti Cepheus costs about $4.55, and IBM's Open Plan is free for up to 10 minutes of QPU time per month. Building only makes sense when you need dedicated, always-on access and can absorb both the purchase and the running cost.
See also: full quantum computer price list · quantum CPU price · desktop quantum computer price · cost calculator · IBM Quantum System Two price · all-provider price reference · methodology. Independent reference, no affiliate revenue. Corrections: oliver@digitalsignet.com.