Rigetti Computing's stock surges 34.9% following April 2026 launch of its advanced 108-qubit Cepheus-1-108Q quantum system.

Rigetti announced general availability of Cepheus-1-108Q system in early April 2026, tripling qubit count from its previous Cepheus-1-36Q model

The system features 12 interconnected 9-qubit chiplets with 99.1% median two-qubit gate fidelity and ~60 nanosecond gate speeds

The quantum computer is accessible through Rigetti Quantum Cloud Services and Amazon Braket, expanding user accessibility

New chiplet, control electronics, and fabrication advances aim to support scalable error-corrected quantum computing