RMSE really favors average models, AI models are bad... but look good in statistics because they are so average. Look at the output of AI models visually on a map and they are just a blurry mess.

In my area AIFS and AIGFS get the top results but the actual best performing model (because I'm a weather nerd) ends up in third place.

There also seems to be some issue with short and long run models in you comparison. I also see a few models on the list that don't cover my area so it looks like you are not querying for just the specific models but the model+ECMWF fill.

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