IBM has released its fastest quantum processor to date, with the Nighthawk r2 now live on the IBM Quantum Platform. With 120 programmable qubits and a high-speed qubit reset architecture, it is capable of executing over 100,000 circuits per second, 25 times the circuit throughput of today’s IBM Quantum Heron fleet. The processor supports accurate observable estimation on circuits containing more than 7,500 two-qubit gates, achieving a key target IBM set for the end of 2026 when it published its current quantum roadmap.
A new reset mechanism drives the speed gain
Nighthawk r2 departs from conventional conditional reset techniques. In previous processor generations, quantum circuits relied on conditional resets using π-pulses and measurement cycles, requiring idle times of hundreds of microseconds between executions to prevent state leakage.
Instead, it uses a dissipative reset gadget. Each programmable qubit is linked through a high-dynamic-range tunable coupler to a cold environment that draws it back to its ground state on demand.
The chip retains the 120-qubit square lattice introduced in the first Nighthawk revision and adds an independent, high-speed qubit reset that reduces the default repetition delay from 250 microseconds to 1 microsecond.
IBM said the change yields up to 25 times the circuit throughput of its Heron processors while maintaining fidelity.
Nighthawk r2’s 120 programmable qubits are linked together with 218 next-generation tunable couplers and 120 reset elements, for a total of 458 physical quantum elements.
Roadmap milestone cleared ahead of schedule
Nighthawk r2 supports accurate observable estimation for circuits with more than 7,500 two-qubit gates, the target IBM set for the end of 2026 when it published its current quantum roadmap. Reaching it in early September puts IBM ahead of its own published schedule.
In June 2026, IBM announced plans to invest more than $10 billion in quantum computing over the next five years, targeting a fault-tolerant system called Starling by 2029 and a larger Blue Jay system targeted for the mid-2030s.
Practical applications already on the processor
IBM says the throughput gains are already translating into real research results. In neutron-scattering simulations reported earlier this year, Nighthawk r2’s increased throughput enabled a 12-times speedup, producing spectra that can be compared directly with experimental laboratory data.
Researchers have also used Nighthawk r2 to perform doped Clifford sampling experiments exploring quantum advantage through trusted quantum computation.
IBM recently completed its acquisition of HRL Laboratories, a leading research and development institution whose expertise spans quantum computing, quantum sensing, advanced communications, electronics, manufacturing, and materials science. HRL’s expertise in silicon-spin qubits complements IBM’s leadership in superconducting quantum computing, and HRL also brings capabilities in quantum sensing, quantum materials, cryogenics, control electronics, packaging, and interconnect technologies. HRL is a private company that was jointly owned by Boeing and General Motors. Boeing and General Motors will continue to partner with IBM and HRL on quantum applications and advanced technology development.
Access and next steps
Access tiers for Nighthawk r2 span the Open Plan, the consumption-based Flex Plan, the Premium Plan, and on-premises deployment, though the first Nighthawk device was restricted to Premium and Flex customers.
Developers working within hybrid quantum-classical pipelines will find the throughput improvement directly useful. The ability to run more circuits per second means more statistical shots per unit of time, which tightens the error bars on near-term quantum computations without requiring additional qubits.
That matters particularly for teams exploring agentic workflows that could eventually call quantum subroutines alongside classical AI inference.
IBM has deployed the processor on the IBM Quantum Platform as ibm_phoenix, and has published full technical details in the IBM Quantum blog. IBM has scheduled a webinar titled “Quantum computing performance in practice” for September 10 to walk developers through the new processor’s capabilities.
The Nighthawk r2 release lands as the broader quantum industry accelerates investment. Xanadu has signed a definitive agreement with the Government of Canada for CAD $195 million in federal funding to support Project OPTIMISM, which will construct Inception, a 158,000-square-foot advanced photonics research, development, and manufacturing facility in Toronto. The Inception facility will house advanced cleanrooms for heterogeneous integration, wafer-level testing, and modular assembly to scale production of photonic components for quantum data centers.
For teams evaluating quantum access options, IBM’s expanded cloud tiers put it alongside competitors whose hardware is already reachable through services like Amazon Braket and Microsoft Azure, a landscape that has grown considerably more competitive as startup investment hit record levels earlier this year.
