ORCA launches PT-3 for commercial quantum advantage

ORCA Computing has launched PT-3, its newest photonic quantum computer, at Digital Realty’s Innovation Lab in London, where it runs alongside NVIDIA-accelerated computing. The system is already being used for protein design and energy optimization, with ORCA positioning it as a step toward practical commercial quantum advantage.

Why it matters: - ORCA Computing is pitching PT-3 as a practical quantum system for enterprise workloads, not a lab demo. - The system targets AI for science and industrial optimization, two areas where better search and learning could change drug discovery, materials design and energy planning. - PT-3 is designed to work with existing NVIDIA-accelerated infrastructure, which could make adoption easier for companies already using GPUs.

What happened: - ORCA Computing launched PT-3, its newest photonic quantum computer and the first built for commercial quantum advantage. - The first PT-3 system is operating at Digital Realty’s Innovation Lab in London. - PT-3 runs alongside NVIDIA-accelerated computing in the lab. - ORCA said the system is modular, upgradeable in the field, operational within hours of installation and built to scale over time.

The details: - PT-3 operates at room temperature. - The system uses 6 kW across two standard racks. - ORCA said PT-3 improves the expressivity of AI models when paired with GPUs, helping them learn from limited data and identify better candidates for drugs and materials. - ORCA used PT-3 with NVIDIA’s Proteína protein-design model in a hybrid quantum-classical setup trained on 32 NVIDIA Hopper GPUs and a PT-3 using 64 photons in 128 qumodes. - The hybrid model outperformed the classical baseline on designability and improved the ratio of useful proteins by 20%. - The model also generated novel proteins with a different mix of secondary structures. - ORCA said PT-3 is being applied to energy scheduling and other optimization problems. - In a 25,755-variable unit commitment benchmark, PT-3 ran the hybrid workflow in about an hour. - ORCA said that was more than 12 times faster than its predecessor at the same solution quality. - In testing described in the white paper, the hybrid solver matched the solution quality of an industry-standard commercial optimization solver and, with more runtime, found the best solutions of any method tested. - Earlier ORCA work with the Technical University of Denmark using the PT-2 system produced about twice as many strong peptide binders as classical AI, with wet-lab validation. - PT-2 also generated 49% more valid, unique molecules on the QM9 benchmark. - ORCA said it has installed 11 PT Series quantum systems in customer data centers worldwide and works with more than 35 customers and partners. - ORCA was founded in 2019 as a spinout of the University of Oxford and is headquartered in London with an office in Austin.

Between the lines: - The launch frames quantum computing as a hybrid infrastructure play, not a replacement for classical computing. - ORCA’s message is that value comes from combining photonic quantum hardware with GPUs to improve real workloads rather than chase isolated benchmarks. - Digital Realty’s role suggests ORCA wants enterprise customers to see PT-3 in a real data center environment before broader deployment.

What's next: - ORCA said enterprise users can trial PT-3 through Digital Realty for workloads in life sciences, defense, energy and logistics. - Richard Murray and the ORCA team will be available for interviews at NVIDIA GTC Berlin from Oct. 20-22, 2026, at booth 7083 in the Inception showcase. - ORCA said the PT-3 platform will keep improving as customers upgrade the field-deployable system over time.

The bottom line: - ORCA is trying to move quantum computing from promise to production by pairing PT-3 with NVIDIA infrastructure and showing early results in protein design and energy optimization.