Rigetti Computing Provides Update on 108-Qubit System

Core Insights - Rigetti Computing is revising its roadmap and adjusting the general availability date for its 108-qubit quantum computing system, Cepheus™-1-108Q, now expected by the end of Q1 2026 [1] Group 1: System Development and Performance - The company is making strong progress with Cepheus-1-108Q but is taking additional time to test and optimize the system to meet performance standards [2] - Rigetti aims to achieve a median two-qubit gate fidelity of 99.5% and has reported current fidelities of 99% for the 108-qubit system, 99.7% for the 9-qubit system, and 99.6% for the 36-qubit system [2] - Cepheus-1-108Q is based on twelve 9-qubit chiplets and utilizes Rigetti's proprietary modular chip architecture, making it the highest qubit count system to date and the largest modular quantum computing system in the industry [2] Group 2: Technology and Infrastructure - Rigetti's quantum computers are based on superconducting qubits, which are considered the leading qubit modality due to their maturity, scalability, and fast gate speeds [3] - The current gate speeds for Rigetti's quantum computing systems range from 50-70 nanoseconds, which is approximately 1,000 times faster than other modalities like ion traps and neutral atoms [3] - The company operates quantum computers via its Rigetti Quantum Cloud Services (QCS) platform, providing high-performance integration with public and private clouds for practical quantum computing [4] Group 3: Product Offerings - Rigetti sells on-premises quantum computing systems ranging from 9 to 108 qubits, supporting national laboratories and quantum computing centers [5] - The 9-qubit Novera QPU is designed for high-performance, on-premises use, allowing integration with existing cryogenic and control systems [5] - Rigetti developed the industry's first multi-chip quantum processor for scalable systems and deployed the largest multi-chip quantum computer in 2025 with Cepheus-1-36Q [6]