Quantum/Machines/Quantum Inspire Tuna-5
Netherlands · operational · Superconducting circuits
Quantum Inspire Tuna-5
Quantum Inspire Tuna-5 is a superconducting circuits quantum computer operated by QuTech in Netherlands. It has 5 physical qubits. It ranks 69 of 74 superconducting machines in this table by physical qubit count. 11 sourced specs are in the spec sheet. No benchmark figures are recorded for it yet.
Also known as Tuna-5
Open-architecture processor released on the Quantum Inspire cloud on 15 May 2025 by the HectoQubit/2 collaboration of QuTech, TNO, QuantWare, Qblox, Orange Quantum Systems and Delft Circuits, hosted in the DiCarlo Lab. QuTech says the chip is fabricated by QuantWare and builds on Starmon-5 (2020); it does not use Delft Circuits cabling, which was planned for a separate scaled-up prototype. Quantum Inspire still lists it as available. Larger siblings are quantum-inspire-tuna-9 and quantum-inspire-tuna-17. No fidelity or coherence figures are published on the pages consulted.
Spec sheet
Technical details as the builder or a paper states them, each with its own source. A blank is a fact we could not source, not a zero. Fidelity and coherence figures are in the benchmark table below.
| Spec | Value | Basis | Note | Source |
|---|---|---|---|---|
| Processor | Tuna-5, 5 transmons fabricated by QuantWare with flux-tunable couplers | Vendor reported | Silicon substrate per the Quantum Inspire page. | qutech.nlquantum-inspire.com |
| Qubit type | transmon | Vendor reported | quantum-inspire.comquantum-inspire.com | |
| Topology | starfish: central transmon coupled to each of 4 corner transmons | Vendor reported | quantum-inspire.comquantum-inspire.com | |
| Max connectivity | 4 | Vendor reported | The central qubit couples to all four others; corner qubits couple only to the center. | quantum-inspire.com |
| Couplers | 4 | Vendor reported | Flux-tunable couplers. | quantum-inspire.comquantum-inspire.com |
| Fabrication | QuantWare-fabricated chip on silicon | Vendor reported | qutech.nlquantum-inspire.com | |
| Software | Orange Quantum Systems toolkit and TNO stack; Python SDK and web UI; Qblox control | Vendor reported | Users reach it through Quantum Inspire. | qutech.nl |
| Cloud platforms | Quantum Inspire | Vendor reported | quantum-inspire.comqutech.nl | |
| Access and pricing | Public cloud through Quantum Inspire 2.0 | Vendor reported | Available since May 2025. | qutech.nlquantum-inspire.com |
| Predecessor | Starmon-5 (2020, retired, not in this dataset) | Vendor reported | QuTech says Tuna-5 builds on Starmon-5, deployed in 2020. | qutech.nlquantum-inspire.com |
| Roadmap | Scaled-up Tuna prototype with Delft Circuits cabling planned for later in 2025 | Vendor reported | Tuna-9 and Tuna-17 have since appeared on Quantum Inspire. | qutech.nl |
Timeline
- 2025-05-15: Announced
- 2025-05: First operational
- 2026-10-18: Status checked: operational
More from QuTech
- Quantum Inspire Tuna-9 (operational, 9 qubits)
- Quantum Inspire Tuna-17 (operational, 17 qubits)
Comparable superconducting machines
Closest in physical qubit count within the same technology. Counts of different qubit types are not interchangeable across technologies.
| Machine | Operator | Qubits | Status |
|---|---|---|---|
| IQM Spark at Chungbuk National University | Chungbuk National University | 5 | operational |
| IQM Spark at TSRI | Taiwan Semiconductor Research Institute | 5 | operational |
| JIQCER-5 | Forschungszentrum Julich | 5 | operational |
| Helmi | VTT | 5 | operational |
| Academia Sinica 5-Qubit System | Academia Sinica | 5 | operational |
| Aqumen Seeker | Quantum Circuits | 8 | operational |