@atthenius
Man can’t say that the AIFS extension is less accurate, but it has a lower resolution.
See what ECMWF says about this AI model.
https://www.ecmwf.int/en/newsletter/178/news/aifs-new-ecmwf-forecasting-system
Note that its resolution is now 0.25°, same as GFS.
Then there is a clear mark in the point forecast table, but not when you are just looking at the map.
4DA0DD27-B696-456B-A470-2420AEC1E4C1.jpeg
And at the end of the point forecast table you can set the forecast period back without the AIFS extension.
F550CD0D-AC83-43C0-8B93-DEC07212970A.jpeg
You get only 10 days forecast in the table but also on the map.
By the way I don’t understand why it is said 7 days, or I miss something.