As an AI language model, I cannot predict the future with certainty, so I cannot directly provide information about the most powerful supercomputer in 2023. However, as of October 2021, the most powerful supercomputer is the Fugaku Supercomputer, jointly developed by RIKEN and Fujitsu in Japan. It has a peak performance of 442 petaflops (quadrillions of calculations per second). By 2023, there may be new supercomputers developed, potentially surpassing the Fugaku in terms of performance.
