Rigetti Computing Unveils 36-Qubit Quantum Computer, Halves Error Rate and Boosts Stock

Rigetti Computing (RGTI) has reported its Q3 2025 financial results, indicating that earnings beat expectations, although revenue was lower than expected. The company has strengthened its global ties, particularly through a collaboration with India, and is making progress toward key quantum computing milestones. These developments have positively impacted the company's stock, leading to a rating upgrade and a 7.1% increase in share price. Rigetti also provided updates on its technology roadmap for 2026 and 2027, focusing on future growth and innovation.

Rigetti Computing has announced a significant breakthrough in quantum computing technology by demonstrating the industry's largest multi-chip quantum computer. This new system features a 36-qubit quantum processor that has set a new record for gate fidelity, achieving a remarkable improvement in two-qubit gate error rates, which have been halved. This milestone signifies a substantial advancement in the precision and scalability of quantum computers. The multi-chip architecture enables Rigetti's quantum system to scale beyond the limitations of single-chip designs, positioning the company at the forefront of quantum technology development. These improvements in fidelity and error reduction are critical for the practical realization of quantum advantage across various complex computational tasks. Following this achievement, Rigetti's NASDAQ-listed shares under the ticker symbol RGTI experienced a significant surge in market value, reflecting investor confidence and excitement about the company's progress. This development underscores Rigetti's leadership in the quantum computing industry and highlights the potential shift the technology could bring to fields such as cryptography, material science, and complex optimization problems. The company's accomplishment marks an important step towards more reliable and powerful quantum systems, tracking closely with the growing demand for quantum computing advancements worldwide.

Rigetti Computing, listed on Nasdaq under the ticker RGTI, has announced a significant breakthrough in quantum computing technology with its new 36-qubit quantum computer system. Scheduled for launch on August 15, 2025, this system demonstrates a median two-qubit gate fidelity of 99.5%, which translates to a twofold reduction in error rate compared to its previous 84-qubit Ankaa 3 system. The technology features a modular design utilizing four 9-qubit chips, known as chiplets, tiled together, showcasing Rigetti's proprietary modular chip technology. This modular approach not only increases processing power but also enhances scalability.

The company remains on track to introduce a larger 100-qubit chiplet-based system with the same 99.5% fidelity by the end of 2025. Rigetti's CEO, Dr. Subodh Kulkarni, highlighted the competitive advantage of their superconducting qubits, which provide gate operation speeds 1,000 times faster than other leading quantum technology approaches like ion traps and pure atom systems. This speed combined with high fidelity and modular scalability positions Rigetti as a noteworthy player in advancing practical and scalable quantum computing solutions.

This milestone is important because it marks a significant improvement in balancing qubit number, operational reliability, and speed—key factors necessary to unlock broader commercial and scientific applications of quantum computing. The progress reported by Rigetti could accelerate developments across various industries reliant on quantum solutions, from cryptography to complex simulations.

In summary, Rigetti's demonstrated 36-qubit multi-chip quantum computer system launching mid-August 2025 with 99.5% two-qubit gate fidelity represents a technological leap. The company aims to further scale this platform towards a 100-qubit system by year's end, underscoring its commitment to pioneering scalable, ultra-fast quantum computing architectures.