D‑Wave’s Advantage2 Quantum Computer Now Generally Available

Release Date: 2025-05-20

With this release, the Advantage2™ quantum computer, which was previewed by Advantage2 prototypes, is available in the Leap service as the Advantage2_system1.1 solver. The Advantage2 quantum computer was developed with a lower-noise fabrication stack, features the Zephyr™ topology, and has 4400+ qubits and 40,000+ couplers.

Compared to the previous-generation Advantage quantum computer, the Advantage2 quantum computer has the following technology upgrades:

• 40% higher energy scales

  Higher energy scales mean greater energy separation between high-quality solutions and lower-quality ones, driving results closer to optimal.

• 2x longer coherence time

  Longer coherence time improves the effectiveness of quantum annealing.

• 4x lower noise

  Lower noise reduces fluctuations in programmable problem parameters, improving precision and the ability of the QPU to distinguish between solutions close in energy.

In the Zephyr topology, each qubit is coupled to 20 other qubits, up from 15 in the Advantage quantum processing unit (QPU). The topology’s greater connectivity allows larger problems to be embedded and enables more-compact embeddings for many problems; embeddings with shorter chain lengths typically result in better solutions.

The range of biases you can set has been increased from [-4.0, 4.0] on Advantage QPUs to a nominal value of [-6.0, 6.0] on Advantage2 QPUs (check the h_range property for your QPU solver for exact values). This enables your programmed bias to influence its qubit state even with the higher numbers of coupled qubits achievable in the Zephyr topology.

For more information on the Advantage2 quantum computer, see the following:

• Performance gains in the D-Wave Advantage2 system at the 4,400-qubit scale white paper: Benchmarks the performance of the Advantage2 QPU against the previous-generation Advantage QPU.

• D-Wave Advantage2 Quantum Computer: Production-Ready Quantum Performance for Business and Science data sheet: Highlights the key benefits of the next-generation Advantage2 quantum computer.

• Advantage2 Demo on GitHub: Demonstrates performance improvements by running problems on Advantage and Advantage2 QPUs.

• Quantum dynamics in frustrated Ising fullerenes paper: Introduces a sensitive cross-platform quantum-simulation benchmark in which the Advantage2 QPU exhibits a substantial improvement in fidelity compared to previous QPUs.

• Zephyr Graph documentation: Describes the Zephyr topology.

• Per-QPU Solver Properties and Schedules documentation: Provides the Advantage2_system1.1 QPU properties and its anneal schedule.