Definitely not a “True SAE”, Crossocheilus siamensis, probably not one of Paracrossochilus, also known as a false SAE.
It is hard for me to be certain, but it appears to me that it is most likely The Flying Fox, Epalzeorhynchos kalopterus, I base this principally on the bar extending past the peduncle and that I can’t see the distinct coloration or roundness of the fins. Though based on the photograph I can’t say for sure
I have 8 that look just like that. They're real good at eating flake food and then waiting for more.
Other than that all they do is chase each other around until the next meal is served.
They're the most aggressive fish out of 120 I have in the tank but only amongst themselves.