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In November 2025, IBM unveiled a new quantum processor with 120 qubits and 218 tunable couplers, designed to run far more complex circuits than its predecessor while keeping error rates low.
IBM's Nighthawk chip has 120 qubits and 218 tunable couplers, components letting engineers precisely control qubit interactions, allowing larger, more complex circuits while keeping error rates manageable, central to IBM's quantum advantage roadmap.
Condor was an earlier IBM chip known mainly for a large qubit count, without Nighthawk's newer coupler design or 2025 unveiling. Eagle was even earlier, representing an earlier stage of IBM's quantum hardware.
IBM plans to keep expanding Nighthawk's capabilities yearly, aiming for around 15,000 two-qubit gates by 2028, showing quantum roadmaps are planned iteratively over years.
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