# OPX1000 by Quantum Machines

Canonical page: https://technooptimist.io/quantum/opx1000
Frontier: [Quantum](https://technooptimist.io/quantum.md) · Field: Fridges, control & fabs · Company: [Quantum Machines](https://technooptimist.io/companies/quantum-machines.md)
Stage: Deploy (4 of 5: Research → Proto → Pilot → Deploy → Scaling)
Updated: last update 2026-09-13, facts checked 2026-10-11
Goal: Give any quantum computer, from a lab chip to a 1,000-plus-qubit machine, control electronics fast enough to measure qubits and react within the same run, which error correction requires.
Status: Shipping to labs and qubit makers; now linked to NVIDIA GPUs through NVQLink.

## Milestones

| Status | Milestone | Date | Slip |
| --- | --- | --- | --- |
| Done | OPX1000 announced, first units with select customers | 29 Aug 2023 |   |
| Done | $170M Series C to scale the platform | 25 Feb 2025 |   |
| Done | QHarbor (Delft) acquired for experiment software | May 2026 |   |
| Done | PCB Engineering (Budapest) acquired for hardware R&D | Jun 2026 |   |
| Done | End-to-end CUDA-Q program on live qubits over NVQLink | Sep 2026 |   |

## Most important updates

- **13 Sep 2026**: Quantum Machines runs an NVIDIA CUDA-Q program end to end across live qubits and GPUs over NVQLink. At IEEE Quantum Week in Toronto, Quantum Machines showed a single CUDA-Q program running across live qubits, its pulse processor and NVIDIA GPUs and CPUs, linked by NVQLink. ([our story](https://technooptimist.io/stories/quantum-machines-runs-an-nvidia-cuda-q-program-end-to-end-across-live-5affba25.md) · [original source](https://thequantuminsider.com/2026/09/13/quantum-machines-makes-quantum-computers-easier-to-program-with-nvidia-cuda-q-and-nvqlink/))
- **29 Aug 2023**: Quantum Machines introduces OPX1000, a 3U controller built to scale to 1,000-qubit quantum computers. Quantum Machines launched OPX1000, a control system with up to 64 output and 16 input channels in three rack units, built so that several units can be linked to run machines of 1,000 qubits and more. ([our story](https://technooptimist.io/stories/quantum-machines-introduces-opx1000-a-3u-controller-built-to-scale-to-1-0f4114d8.md) · [original source](https://www.prnewswire.com/news-releases/quantum-machines-introduces-opx1000---the-quantum-control-solution-for-large-scale-quantum-computing-301912436.html))

## Current obstacles

- **Feedback speed for error correction**: Decoding runs on GPUs or FPGAs outside the controller; every round trip must stay near a microsecond as qubit and logical-qubit counts grow.
- **Channels per qubit**: At 64 outputs per 3U box, a million-qubit machine with one line per qubit would need over 15,000 boxes; control must get much denser.

## Physics limits

- **Qubits don't wait**: Qubits lose their state in microseconds to milliseconds, so any decision based on a measurement must arrive within that window; classical processing has hard deadlines.
- **Every wire carries heat**: Electronics at room temperature need a cable into the fridge for each channel, and each cable leaks heat into a stage with only microwatts of cooling.

## How it works

### Modules: Signals matched to the qubit type

Eight front-end slots take microwave or low-frequency modules, each with its own pulse processor, mixed as a given qubit technology requires.

### Pulse processor: Decide while the qubit waits

Pulses are computed on the fly and measurement results feed straight back into control flow, so the next pulse can depend on the last result.

### Linking: Many boxes, one controller

Modules across several units are programmed together as one large controller, which is how the system scales toward 1,000-plus qubits.

### GPU link: Hand heavy maths to GPUs

Over NVQLink, one CUDA-Q program sends quantum steps to the qubits and classical steps to GPUs and CPUs, round trip about a microsecond.

## Spec sheet

| Spec | OPX1000 | Provenance |
| --- | --- | --- |
| Output channels per unit | 64 | reported |
| Input channels per unit | 16 | reported |
| Size | 3U | reported |
| Front-end module slots | 8 | reported |
| Design target (linked units) | 1,000+ qubits | reported |
| Qubit-to-GPU round trip (NVQLink demo) | ~1 µs | reported |

Provenance: reported = stated by the company; estimated = our estimate; sample = a sample figure.

## About Quantum Machines

Quantum Machines builds the control electronics that send pulses to qubits and read them out in real time. The Tel Aviv company, founded in 2018, says more than half of the world's quantum computing companies use its systems.

- Says more than half of the world's quantum computing companies use its control systems; $280M raised.
- OPX1000 (2023) packs 64 outputs and 16 inputs in 3U; linked units aim at 1,000-plus-qubit machines.
- Sept 2026: first control firm to run an NVIDIA CUDA-Q program across live qubits and GPUs over NVQLink.

- Founded: 2018
- Headquarters: IL
- Status: private
- Staff: ~200
- Raised: $220M
- Last round: Series C $170M, 25 Feb 2025, led by PSG Equity
- Website: https://www.quantum-machines.co
- People: Itamar Sivan (Co-founder & CEO); Yonatan Cohen (Co-founder & CTO); Nissim Ofek (Co-founder)
- Partners, customers, investors: PSG Equity (investor); Intel Capital (investor); Red Dot Capital Partners (investor); NVIDIA (partner); Alice & Bob (customer)

Company page: https://technooptimist.io/companies/quantum-machines.md

## Related programs

Everything in Quantum: https://technooptimist.io/quantum.md

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