BELENOS Launch The World’s Most Powerful Photonic Quantum Computer
BELENOS THE WORLD’S MOST POWERFUL PHOTONIC QUANTUM COMPUTER
Paris, May 22, 2025 — Quandela, a global leader in quantum computing, unveils Belenos, the world’s most powerful photonic quantum computer. This breakthrough, offering 4,000 times more computing power than the previous generation, marks a pivotal step in the company’s Roadmap 2030. Available to commercial and industrial partners via the cloud, Belenos builds on the first photonic quantum computer launched in the cloud two years ago. A fully integrated version will be delivered to a supercomputer facility by the end of 2025.
Unprecedented Growth in Computing Power
Based at Quandela’s Massy headquarters near Paris, Belenos is accessible in the cloud to over 1,200 researchers and partner organizations across 30 countries, with 40% of users based in France, alongside significant representation from North America and Asia.
With 12 photonic qubits, Belenos surpasses the 6-qubit model of 2022. This progress far exceeds Moore’s Law, which predicts a doubling of conventional processor performance every two years. The upcoming Canopus, expected next year, will double the number of qubits, resulting in a 16 million-fold increase in computing power. By 2028, Quandela aims to develop a quantum computer with over 40 qubits, whose power will exceed the simulation capabilities of any conventional computer.
Transformative Real-World Applications
Belenos enables testing of innovative algorithms on physical systems, accelerating AI tasks like image classification and generation, as demonstrated by Quandela’s victory in the BMW-Airbus challenge for image classification, which it won in December 2024. Researchers on the cloud platform can explore quantum machine learning (QML).
While academia and research dominate, the private sector, accounting for 25% of usage, is rapidly adopting quantum technologies. Applications supported by EuroHPC include electromagnetic simulation, structural mechanics, engine combustion, materials simulation, meteorology, and earth observation. A fully integrated Belenos system will be deployed at the CEA’s Très Grand Centre de Calcul (TGCC) for EuroHPC/GENCI by the end of 2025.
A Vision Delivered on Schedule
The launch of Belenos reflects Quandela’s commitment to its 2030 roadmap, announced in October 2024. “We are thrilled with this achievement. Cloud access to Belenos now offers to our partners the possibility to explore use cases where the speed of calculation and the number of computational operations per data point are essential; these capabilities, offered by Belenos, are inaccessible to the competition. This paves the way for concrete applications in machine learning and at the interface between AI and quantum, in sectors that are as varied as they are strategic for the future,” said Niccolo Somaschi, co-founder and CEO of Quandela.
About Quandela
Founded in 2017, Quandela is a European pioneer in full-stack photonic quantum computing, offering modular, scalable, and energy-efficient systems accessible both via the cloud and on-premise. Headquartered in Massy, near Paris, the company specializes in the development of photonic quantum hardware, software, and middleware for a wide range of industrial use cases, including energy, cybersecurity, and finance.
At the core of Quandela’s innovation is eDelight, a next-generation solid-state single-photon source that removes key scalability barriers in quantum computing. This proprietary technology enables precise manipulation of photonic qubits, forming the foundation of Quandela’s integrated quantum systems. The company has deployed four quantum computers to date and operates two industrial manufacturing sites.
Quandela’s cloud platform now supports more than 1,200 users across research and industry, including over 10 corporate clients using its solutions. The company employs over 110 full-time staff, with expertise spanning software engineering, photonics, quantum physics, and systems integration. It has published or patented over 40 scientific works and collaborates with a wide network of institutions, including CNRS, Université Paris-Saclay, University College London, and the International Iberian Nanotechnology Laboratory.
Since its inception, Quandela has completed multiple fundraising rounds — including a €10 million seed round in 2021 and a €50 million Series A in 2023 — and has delivered systems to major infrastructure providers like OVHcloud. Its milestones include the launch of Prometheus, Perceval, and Quandela Cloud 2.0, marking key advances in programmable photonic quantum computing.
Backed by major investors such as Serena, Quantonation, Omnes, and BPI France, and supported by public partners like EIC and Crédit Mutuel Innovation, Quandela continues to shape the future of quantum technology in Europe and beyond.
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