>>74498291To understand Jiren's full power, one must first understand the unbelievable gap between his Limit Break and his ordinary self.
When Jiren is introduced, he makes quick work of SSBKK, a U7 Spirit Bomb, among other things. At this point Whis already says Jiren surpasses the level of the GoD. I need to point out here that you CANNOT be about the level of a GoD if there are GoD's stronger than you. The whole statement wouldn't make sense. So Jiren is stronger than EVERY GoD, even Beerus. But this was implied already when Belmod, who was called stronger than Beerus, was stated weaker than Jiren.
We also see Jiren shrug off SSBKK Goku and SSBE Vegeta in a 2v1, literally being on the advantage the whole time. SSBE Vegeta was capable of beating GoD Toppo, who is stated to be "no different from a regular GoD". Even if you want to argue that he's the weakest of the GoDs, he is still definitely on their level. Since Vegeta beat him, that means both Goku and Vegeta are on that level. So Jiren was winning against BOTH of these at the same time. He was effectively fending off two Gods of Destruction simultaneously. Now, here's the thing. This whole time Jiren is holding back his full power. Him being above the GoD level, beating GoD-level opponents, all of this happened while his ki was suppressed.
Once he does unleash his full power everything changes. His opponents (GoD level) are literal ants to him. He FACETANKS their beam attacks and almost KO's all of them merely by flaring his aura. Not even an "Owari Da" ki attack, just bursting his AURA is enough to wreck GoD level opponents.
This incomprehensibly strong Jiren, who was so vastly stronger than GODS OF DESTRUCTION LEVEL FIGHTERS that he could FACETANK their strongest attacks and KO them by flexing his ki - THIS Jiren - then got FODDERIZED by Ultra Instinct Goku. Absolutely fodderized. A full power CHARGED Ki attack from him was simply crushed in Goku's hand. He gets destroyed by a billion punches in an instant. THAT is how much stronger UI is than THIS Jiren, to whom GoDs are but ants.
But then of course, Jiren HIMSELF has a Limit Break that puts him on an even footing with UI. He made up that INSANE gap in power and reached the same level. Everything I talked about in regards to Jiren and his incredible power is completely DWARFED by this Limit-breaking Jiren that is now equal, if not outright superior, to UI. At this point we have two beings that have left the "GoD level" so far behind it's not even the same dimension anymore.
To put it plainly: LB Jiren >= UI >>>> FP Jiren >> Jiren > 2x GoD fighters / Beerus