Looks like a female GABF with some very unique coloring. Doesn't look much like a male Giant and yellow coloring is not an exact science for sexing these frogs. Male Dwarfs do tend to have alot of yellow on the chest and arm pits. The head is a decent size, but most male GABFs. Don't have full yellow throats.
I'd like to know the size SVL of the frog and age before giving a definite answer. If it is a Dwarf it is a male.