Superconducting-qubit maker with its own chip foundry; publicly listed.
Editorial profile — compiled by us from public sources.
Standings and milestones are always verified by us against primary sources, regardless of who manages the profile.
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Rigetti launched its 84-qubit Ankaa-3 superconducting system with a 99.5% median two-qubit gate fidelity — a major reliability jump from a redesigned qubit layout and Alternating-Bias Assisted Annealing, available on Rigetti's cloud and later AWS Braket / Azure.
Rigetti's chiplet path: Cepheus-1-108Q tiles twelve 9-qubit chiplets into a 108-qubit system — billed as the industry's largest modular quantum computer — with a prototype already demonstrating 99.9% two-qubit fidelity; roadmap to 150+ (2026) and 1,000+ (2027) qubits.
