According to the gov’t. Not sure why you’re so angry. But it’s not called the GFS anymore
Upgrade to the FV3Edit
On June 12, 2019, after several years of testing, NOAA upgraded the GFS with a new core and dynamic scaling that uses the finite volume method. The resulting model, being developed under the name finite-volume cubed-sphere model (FV3), inherited the GFS moniker, with the archaic GFS model continuing to be run until December 2019.[9][10] Initial testing of the FV3 showed promise, outperforming the Integrated Forecast System in terms of hurricane tracks during the 2017 hurricane season (the IFS had been the most accurate operational model in predicting the paths).[11]