BOSTON, June 15, 2026 -- QuEra Computing today announced Libra, its first fault-tolerant quantum computer, arriving on Amazon Braket in 2028, alongside a deepened multi-year technical and go-to-market partnership with Amazon Web Services (AWS) to bring fault-tolerant computing to customers worldwide.

Fault-tolerant quantum computers are designed to run longer, deeper, and more reliable computations than today’s noisy quantum systems. For enterprises, research institutions, and governments, this creates a path toward workflows that may eventually support molecular simulation, materials discovery, optimization, and other problems where classical approaches face scaling limits.

Libra, QuEra’s first fault-tolerant quantum computer and the first system in the expanded QuEra/AWS partnership, is a megaquop-class system, meaning it is designed to perform on the order of one million reliable logical quantum operations. That matters because practical quantum applications depend not only on the number of logical qubits, but also on how many logical operations can be performed before errors overwhelm the computation. With projected specs of over 256 error-corrected logical qubits and a logical error rate of 10⁻⁶, Libra is designed to give AWS customers cloud access to fault-tolerant quantum computing in 2028 and support early practical commercial and research workflows.

The Libra architecture has been validated in multiple peer-reviewed publications. It builds on QuEra's track record of building and deploying quantum computers, including Aquila, the 256-physical-qubit system live on Amazon Braket since 2022, and Gemini, a neutral-atom system with logical-qubit capabilities co-located with the ABCI-Q supercomputer in Japan.

“Fault-tolerant quantum computing is moving from a scientific milestone to an engineering and deployment roadmap," said Andy Ory, CEO of QuEra Computing. "We have executed this roadmap in the open, with peer-reviewed milestones and validated system advances. Libra brings fault-tolerant computing to the cloud at scale in 2028. It is an important step forward, and subsequent generations will scale even further, as we will reveal in our roadmap webinar later this month. We are inviting leaders to engage now so they can build the talent, use cases, and workflows needed to be ready when these systems come online."