Probably the movie then. Chibi Fate only shows up in the movie and the first two seasons, and there's nothing I can see here that would give this an A's timestamp (Can't see whether Bardiche has the cartridge system installed for instance).
I'd say it's movie Fate. My main reasons are - The clasp on the cape has the gold triangles. - She doesn't have the triangular bit of material covering her crotch - The tip of Bardiche is coloured, rather than the plan gun-metal grey.
I've added the movie tag, but this is just from what I can ascertain from this image, so it's not 100%