# Google Quantum AI
**[[https://quantumai.google|Google Quantum AI]]** builds on [[transmon-qubits]], the same family as [[ibm-computing]], arranged in a 2D grid with each qubit tunably coupled to its neighbors. Its Sycamore processor produced the first widely publicized claim of quantum computational advantage in 2019, running a random circuit sampling task. That claim was later narrowed as classical simulation techniques improved.

More recently, Google's Willow chip showed that adding physical qubits to a surface-code logical qubit reduces the logical error rate. This was a long-sought milestone: error correction actually getting better as it scales, not just staying even.