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IBM Quantum is one of the largest quantum computing companies and operates the most extensive cloud-accessible quantum computing fleet. Flagship systems include Condor, a 1,121-qubit scale demonstration released in December 2023, and Heron R2, a 156-qubit operational flagship with 3 to 5 times better errors released in December 2024. IBM's hardware roadmap stretches across the decade. The 2026 plan centers on the Kookaburra processor, the first to integrate qLDPC quantum memory with a Logical Processing Unit, targeting 7,500 gates on up to 360 qubits. The experimental IBM Quantum Loon processor has demonstrated all the key components of fault-tolerant computing. In November 2025, IBM released the Nighthawk processor with 120 qubits and 218 tunable couplers, and claims its LDPC codes require 90% fewer qubits than Google's surface code. The 2029 roadmap targets the Starling system with 200 logical qubits and 100 million quantum operations, and the 2033 target is Blue Jay with 2,000 logical qubits and 1 billion quantum operations. On the software side, Qiskit v2.2 delivers circuit transpilation 83 times faster than TKet 2.6.0, and the Samplomatic package reduces probabilistic error cancellation overhead by 100 times. In January 2026, IBM released Qiskit v2.3 with an expanded C API for HPC integration, custom transpiler passes, and VF2Layout upgrades. In March 2025, Qunova Computing's HI-VQE algorithm was added to the Qiskit Functions Catalog, available to more than 250 IBM Quantum Network organizations, with a claimed efficiency improvement of more than 1,000 times for large molecule modeling. In March 2026, IBM published a quantum-centric supercomputing architecture with middleware for coordinating QPU and HPC workloads. IBM has produced a series of scientific results. In March 2026 it simulated the magnetic crystal KCuF3 on its quantum processors, with peer-reviewed results matching Oak Ridge National Laboratory neutron scattering data, cited as the most impressiv
Quantum Specifications
| Qubit Technology | Superconducting |
| Physical Qubits | 1,121 |
| 2Q Gate Fidelity | 99.5% |
| Error Correction | Qldpc-gross-code |
| Quantum Focus | hardware |
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