They are far right enough that courts and prosecutors have decided repeatedly that one of their main leaders can be publicly called a fascist and a nazi because it is based on facts and a permissible „value judgement“. This is rather exceptional, as things like that are usually taken very seriously here as an insult and can cost you hundreds or thousands of Euros.

Here is what one prosecutor had to say (translated):

Against the background that the person concerned, according to general opinion, belongs to the extreme right-wing fringe of his party, has expressed himself in recent years, as evidenced by a large number of press publications, in a clearly nationalistic-folkish manner with racist overtones and emphasising a natural claim to leadership of the Germans, and in doing so has repeatedly used formulations that belonged to the standard vocabulary of the representatives of National Socialism before May 1945…

There are moderates in the AfD, but they are increasingly silenced or leaving. And in that case „moderate“ means not demanding that migrants be shot at the border, not defending holocaust deniers, not attending concerts where the hitler salute is shown, not conniving with Reichsbürger (our own mad version of „sovereign citizens“), not calling for the death of government officials, politicians or doctors …