pytket

pytket is a Python SDK from Quantinuum for quantum circuit construction, compilation, and optimization, providing a hardware-agnostic layer that can target multiple quantum computing backends (IBM, Quantinuum, IonQ, and others) from the same circuit code.

Its compiler applies hardware-specific optimization passes to reduce circuit depth and gate count before execution, which matters significantly on current noisy quantum hardware where fewer operations means less accumulated error.

Used by quantum computing researchers and developers who want to write circuits once and run them across different quantum hardware providers without rewriting for each backend's native format.