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Helios is the most accurate quantum computer ever built

Technology

Quantinuum just dropped Helios, claiming it's the most accurate quantum computer ever built.
With 50 error-detected logical qubits and 98 fully connected physical qubits, Helios sets a new bar for precision in the quantum world.

Helios runs on atomic barium ion qubits

Helios runs on atomic barium ion qubits, hitting single-qubit gate fidelity of 99.9975% and two-qubit fidelity of 99.921%.
Real-time decoding (thanks to NVIDIA GPUs) enables error correction during computations, reducing slowdowns.
It uses less than 40kW of power and comes with a fresh software stack—including the Guppy programming language—for both cloud and on-site use.

It's not a gadget for your desk

This isn't a gadget for your desk—it's built for researchers and companies tackling big challenges in materials science, AI, or finance.
You can access Helios through Quantinuum's cloud if you're working on next-level simulations or want to push what quantum computing can do.

Helios stands out with code concatenation for efficient error correction

Helios stands out with code concatenation for efficient error correction and its fully connected ion-trap design, letting any qubit interact with any other—crucial for scaling up reliable quantum power.