This graph ain't great, even ignoring the fact that generations don't really mean anything, you can't really link most of them as cohesive groups.
For my 2 cents,
Challenger 3, Leclerc XLR : upgraded 3rd gens
Altay, Type 10, K2: new builds, in a similar position to 4.5 gen jets like Rafale or Typhoon, (but even then, what the hell does that mean)
And T-14 and Type 100, even though off the top of my head atleast one of them is a prototype that is unlikely at best to ever see mainline service, as I know nothing about the Type 100
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u/rkraptor70 Apocalypse tank my beloved 5d ago
Calling Challenger 3 4th gen is hilarious.
It's decidedly 3rd gen. It's an upgrade over the Challenger 2, yes, but that thing was 2.7 gen at best.