I've been seeing screenshots like these around. This isn't Gemini 4.1 Flash. The model thinks "v4p1s" means 4.1 which is wrong.
gemini-v4p1s-rev25-skimaki-remy
v4(p1) = Gemini 3 base
s = Model size
remy = codename for Spark
skimaki = 3.8 Flash int codename