Rigetti Launches 108‑Qubit Quantum System on AWS Braket

Overview

• Rigetti made its 108‑qubit Cepheus‑1‑108Q system generally available through its own Quantum Cloud Services and Amazon’s Braket platform.
• The new machine uses a modular chiplet design that is built to scale more easily as components are linked into larger systems.
• Rigetti says the system delivers high two‑qubit gate fidelity and faster processing, which are key steps toward useful quantum workloads.
• Mizuho cut its price target to $33 from $43 but kept an Outperform rating, citing rising investment, fresh technical gains, and growing enterprise interest.
• Rigetti runs a full‑stack model, building superconducting processors and selling cloud access to them, which lets the company update hardware and software in one place.