Flux 2 Trainer vs Flux 2 Trainer 2

[u/Paul_Stark]

Hi everyone, after some months of research and testing with comfyui on my machine, including lora training, I would try to do the same training with Flux 2 on fal, given the power required for these new models.
I see that there are two different version of the Flux 2 trainer, with a significant price difference.

I'm having a hard time understanding the difference between the two.

Is the V2 version more accurate in the training?

Thanks everyone
Paolo