FET Noise in BSIM4

I am trying to find gamma in a single FET simulation to match current noise density (maybe op from calculator), in^2=4*k*T*gamma*gm. I did spectre -h bsim4 but not sure where to find it if any, found this post but did not help.

Also, in my back calculation I got gamma of 7 which is fairly high.

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