Kirin's Gratuitous Final Fantasy Summons Chart

ff3	ff4	ff5	ff6	ff7	ffT	ff8	ff9	ff10	ff11	ff12	EFFECT
Sum	Sum	Sum	Esper	Sum	Sum	GF	Sum/Eid.	Aeon	Avatar	Esper	(sys.name)

Ifrit	Ifrit	Ifrit	Ifrit	Ifrit	Ifrit	Ifrit	Ifrit	Ifrit	Ifrit'	Belias'	Fire1

Shiva	Shiva	Shiva	Shiva	Shiva	Shiva	Shiva	Shiva	Shiva	Shiva'	Mateus'	Ice1

Ramuh	Ramuh	Ramuh	Ramuh	Ramuh	Ramuh	Quetzacotl'	Ramuh	Ixion'	Ramuh'	Adramlch	Lit1

	Sylph	Sylph'									AbsHP
			Sraphim		Moogle				Carbuncle'		Cure1
			Kirin								Regen

			Unicorn								Remedy

			Siren		Silph	Siren'					Silence

			Stray								Conf

		Golem	Golem		Golem'						PhysDef
			Fenrir								"
			Phantom								"

		Carbunkle	Carbunkl		Carbunkle	Carbuncle	Carbunkle				MagDef
			Zoneseek								"

Titan	Titan	Titan	Terrato	Titan	Titan	Brothers	FenrisWolf		Titan'	Hashmal'	Earth1

Chocb	Chocb	Chocobo		ChocoMog		Chocobo*'		(Valfor)			Non1
	Goblin'	Remora'									"
	Mind										"
	Bomb'										"

	Cockt	Catoblepas	Shoat								Stone

						Pandemona			Garuda	(Chaos)	Wind1

			Palidor								Jump

	Dragn		Maduin	Chupon		Tonberry'		(Bahamut)		Shemhzai'	Non2
						Cactaur'				Exodus'	"

						Diablos'	Atomos'			Zeromus	Gravity

			Tritoch	Kjata				Valfor		Chaos'	Fir/Ice/Lit

	Asura		Starlet		Fairy						Cure2

					Salamndr'			(Ifrit)	(Ifrit)		Fir2

								(Shiva)	(Shiva)		Ice2

		Syldra						(Ixion)	(Ramuh)		Lit2

Levia	Levia	Leviathan	Bismark	Leviathan	Leviathan	Leviathan	Leviathan		Leviathan'	Famfrit'	Water2

					Lich				Fenrir		Dark2

						Cerberus					Mag+

				Hades		DoomTrain		(Anima)		Cuchlain'	NegStat

		Phoenix	Phoenix	Phoenix		Phoenix*	Phoenix				Fire/Life

	Odin		Odin			Odin*				Zalera'	Death
			Raiden'								"
Odin		Odin		Odin	Odin	Gilgamsh*'	Odin'	Yojimbo			Death/Non2

			Ragnarok								Item

			Alexandr	Alexander		Alexander	[Alexander]		(Carbncle)	Ultima'	Holy2
							Maduin				"

Baham	Baham	Bahamut	Bahamut	Bahamut	Bahamut	Bahamut	Bahamut	Bahamut'			Non3
				Neo-Bahamut	Cyclops	[Griever]					Non3.3
				BahamutZero				Anima			Non3.6

			Crusader	KnightsOTR	Zodiac	Eden	Ark	Sisters		Zodiark'	Non4

ff3	ff4	ff5	ff6	ff7	ffT	ff8	ff9	ff10	ff11	ff12	EFFECT

Notes:

A Summon* indicates a summon that appears randomly or is otherwise not a regular summon spell.
A [Summon] indicates a summoned monster which appears in the game's plot, but is not acquirable.
A (Summon) is just being listed in a second spot because it fits well in more than one place.
A Summon' also appears in FFXII: Revenant Wings. That whole game is based around summoning, so listing them all would break the table. Only the most recent pre-RW copy is marked. Note that RW summons are not necessarily the same element as their original appearance.
In FF10 and FF11, summons can be leveled up, so distinctions like Fire1/Fire2 in "effect" are meaningless. Also, they may learn new abilities like status up/down, etc.

Ben Elgin, 10.Jun.08