Hercules differs from the Gods because he isn't a God, he is a Demigod, half human and half god (His mother is Alcmene a mortal, Father is Zeus or Jupiter.
Hercules, known to the greeks as Heracles, was considered the greatest among greek heroes due to his superhuman strength, intelligence, and courage among many other traits. He was also a son of Zeus, who was considered one of the strongest gods ever.