Originally Posted by
Thaliss
Fates have 3 medals : Bronze, Silver and Gold each one has a range set reward bonus in XP, Seals and Gil, gold reward is fixed for your level.
About your chocobo xp, he gets a part of the xp the mobs you kill gives you. Example you alone get 300 xp from a monster, with chocobo out the same monster gives you 200xp, chocobo gets 100xp (unless this was changed)
But for the final reward of a fate, you alone get the xp, like if you return a quest, if you have your chocobo summoned he gets nothing.