Our first Nighthawk QPU and latest Heron QPU are now available

We are pleased to announce the release of two powerful new processors that debuted at last month's IBM Quantum Developer Conference.

Premium and Flex Plans now have early access to ibm_miami, the first IBM Quantum Nighthawk QPU. Our most advanced quantum processor to date, Nighthawk is a 120-qubit device with a square-lattice topology (218 couplers versus Heron's 176) that is designed to support more complex workloads. The team has been hard at work since our early Nighthawk preview at QDC, and we are proud to say the released Nighthawk has the highest coherence of our fleet - even higher than what we reported at QDC - with a median T1 of 350 µs.

Please note that ibm_miami is currently an exploratory QPU that is still being tested and optimized as part of our continual cycles of learning. As such, it temporarily has the following limitations:

• Default repetition time has been temporarily increased from 250 µs to 4 ms, which will impact QPU time required to execute workloads
• Dynamic circuits are not yet supported, and quality of mid-circuit measurements is limited

Additionally, Premium, Flex, and Pay-As-You-Go Plans now have access to ibm_boston, our most performant IBM Quantum Heron r3 to date. It has demonstrated an EPLG at 100 qubits of 2.15e-3, with 57 of 176 possible two-qubit gates below the 1e-3 error level.