TL;DR: Google's 'Quantum Echoes' algorithm, demonstrated in October 2025, performed a computational task 13,000 times faster than the most sophisticated classical supercomputers. Unlike previous quantum adva
Google's 'Quantum Echoes' algorithm, demonstrated in October 2025, performed a computational task 13,000 times faster than the most sophisticated classical supercomputers. Unlike previous quantum advantage demonstrations based on random circuit sampling, Quantum Echoes represents a more structured computational task, moving quantum advantage closer to practical applications. This was hailed as a landmark breakthrough in quantum computing.
Type
Computational Advantage / Benchmark
Complexity
13,000x faster than best classical supercomputer
Application
Demonstrating quantum computational advantage beyond random circuit sampling