IBM Expands Dynamic Circuits to All Qiskit Runtime Users at Utility Scale

Details

• IBM has made dynamic circuits available to all Qiskit Runtime users as of September 2025, providing access to real-time classical logic in quantum circuits across more than 100 qubits on all supported backends, except ibm_sherbrooke and some on-premises installations.
• The broader rollout follows an early access launch in June 2025 and introduces substantial improvements through Qiskit Runtime version 0.42.0, building on architectural updates since dynamic circuits first debuted in 2022.
• Dynamic circuits enhance quantum program flexibility by allowing mid-circuit measurements with classical feedforward, enabling conditional logic and more efficient algorithm execution at a practical scale previously unattainable for most users.
• The updated Gen3 execution stack delivers up to a 75-fold increase in workload speed and offers parallel branch execution, contributing to a 28% reduction in two-qubit gates and a 24% overall performance boost versus static circuits.
• Key upgrades include 65% faster mid-circuit measurements with a 940ns improvement, improved timing and debugging tools, and greater flexibility in circuit design, further supporting advanced research in quantum error correction and explorations of near-term quantum advantage.

Impact

This major update dramatically expands access to state-of-the-art quantum programming, lowering barriers for scientists and developers to utilize dynamic circuits at scale. By giving a broader user base powerful new tools and optimizations, IBM is strengthening Qiskit's position as the leading quantum software platform. The move may accelerate research on quantum advantage and error correction, setting a higher bar for rivals focused primarily on hardware progress.