The Dutch quantum ecosystem has unveiled Tuna-5, a new open-architecture quantum computer developed as part of the HectoQubit/2 (HQ/2) project.

Unlike the vertically integrated machines offered by some commercial providers, Tuna-5 demonstrates a collaborative model that draws on interoperable hardware and software from across the Netherlands.

Built through a partnership between QuTech, TNO, and four Dutch startups - QuantWare, Qblox, Orange Quantum Systems, and Delft Circuits - Tuna-5 is now accessible via the Quantum Inspire public cloud platform.

The system integrates a superconducting quantum processor with tunable couplers, modular electronics, a user-friendly interface, and a Python-based SDK, all developed using components from the Delft quantum supply chain.

QuTech described the approach as more than simply combining parts from different vendors. It involved extensive testing and iterations to ensure a seamless system, which also helped strengthen the Netherlands' capability to deliver scalable, interoperable quantum technology.

Hosted in QuTech's DiCarlo lab and backed by Quantum Delta NL and the National Growth Fund, HQ/2 is designed to reinforce Dutch leadership in superconducting quantum computing.

Tuna-5 marks a step forward for academic and startup collaboration instead of relying solely on centralised industry giants.

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